CS42888

108分贝192千赫4中，8输出编解码器

特点

4个24位A / D， 8个24位D / A转换器

ADC的动态范围

- 105分贝差

- 102分贝单端

DAC的动态范围

- 108分贝差

- 105分贝单端

ADC / DAC THD + N

- -98 dB差分

- -95分贝单端

兼容行业标准的时间

分复用（TDM）串行接口

系统采样率高达192 kHz

直流可编程ADC高通滤波器

偏移校准

对数数字音量控制

IC

& SPI

主机控制端口

支持5 V和1.8 V的逻辑电平

Popguard

技术

控制端口串行&

音频端口供电=

1.8 V至5 V

数字电源=

3.3 V至5 V

概述

该编解码器CS42888提供

FOUR

多比特模拟到

数字和8的多比特数字 - 模拟Σ-Δ

转换器。该编解码器能够运行与EI型

疗法差分或单端输入和输出，在

64引脚LQFP封装。

FOUR

全差分或单端输入都可用

能够在立体声ADC ADC1and

2

。数字音量控制

是为每个ADC通道，可选择过

流量检测。

所有8个DAC通道数字音量控制

并且可以与差分或单端操作

输出。

辅助串行输入，可额外2

PCM数据通道。

该CS42888可在一个64引脚LQFP封装

商业（ -10 ° C至+ 70 ° C）和汽车（ -40 ° C至

+ 105 ° C）的成绩。该CDB42888客户Demonstra-

灰板也可用于设备的评估和

实施意见。请参阅

“订购

第61页上的信息“

对于完整的订购

信息。

该CS42888是理想的音频系统，要求广泛

动态范围，高保真和低噪音等

如A / V接收器， DVD接收器和车载音响

系统。

模拟电源=

3.3 V至5 V

电平转换器

I

2

C / SPI

软件模式

控制数据

注册

CON组fi guration

ADC溢出

&时钟误差

打断

内部电压

参考

外

静音控制

MUTE（静音）

控制

打断

RESET

PCM和TDM串行

接口

串行音频

输入

电平转换器

的辅助系列

音频输入

输入主

时钟

串行音频

产量

卷

控制

数字

过滤器

ΔΣ

调制器

多位

DAC1-4和

模拟滤波器

8

8

差分或

单端

输出

高通

滤波器

数字

过滤器

多位

过采样

ADC1

多位

过采样

ADC2

2

2

高通

滤波器

数字

过滤器

差分或单

端模拟输入

2

2

http://www.cirrus.com

版权

Cirrus Logic公司， 2007年公司

（版权所有）

十二月'07

DS717F2

CS42888

目录

1.引脚说明

........................................................................................................................ 6

1.1数字I / O引脚特性........................................................................................................... 8

2.典型连接图

................................................................................................. 9

3.特性和规范............................................. ....................................... 10

推荐工作条件............................................... .................................... 10

绝对最大额定值....................................................................................................... 10

模拟输入特性（商业） ............................................ ........................ 11

模拟输入特性（汽车） ............................................ ......................... 12

ADC数字滤波器特性.............................................. ......................................... 13

模拟输出特性（商业） ............................................ .................... 14

模拟输出特性（汽车） ............................................ ..................... 15

联合DAC插值&片上模拟滤波器响应.............................. 17

切换规格 - ADC / DAC端口........................................... ................................. 18

开关特性 - AUX口............................................. .................................... 20

切换规范 - 控制端口 - IC模式.......................................... ............. 21

切换规范 - 控制端口 - SPI格式.......................................... ....... 22

DC电气特性............................................... ............................................... 23

数字接口规格&特性............................................. ........ 23

4.应用................................................................................................................................... 24

4.1概述......................................................................................................................................... 24

4.2模拟输入.................................................................................................................................. 24

4.2.1线路电平输入................................................................................................................... 24

4.2.2高通滤波器和直流偏移校准....................................... .................................... 25

4.3模拟输出............................................................................................................................... 25

4.3.1初始化............................................................................................................................ 25

4.3.2输出瞬态控制....................................................................................................... 27

4.3.3 Popguard ............................................................................................................................... 27

4.3.3.1上电................................................................................................................... 27

4.3.3.2掉电.............................................................................................................. 27

4.3.4静音控制.......................................................................................................................... 27

4.3.5线路电平输出和滤波......................................... .................................................. 28

4.3.6数字音量控制........................................................................................................... 28

4.3.7去重滤波器................................................................................................................ 28

4.4系统时钟............................................................................................................................. 29

4.5编解码器的数字接口格式............................................. .................................................. ... 30

4.5.1 IS .......................................................................................................................................... 31

4.5.2左对齐.......................................................................................................................... 31

4.5.3右对齐........................................................................................................................ 31

4.5.4 OLM ＃ 1 .................................................................................................................................. 31

4.5.5 OLM ＃ 2 .................................................................................................................................. 32

4.5.6 TDM ....................................................................................................................................... 32

4.5.7 I / O信道分配........................................................................................................... 33

4.6 AUX端口数字接口格式............................................ .................................................. .. 33

4.6.1 IS .......................................................................................................................................... 33

4.6.2左对齐.......................................................................................................................... 33

4.7控制端口的描述和时序............................................ .................................................. 33

4.7.1 SPI模式............................................................................................................................... 34

4.7.2 IC模式................................................................................................................................ 34

4.8中断........................................................................................................................................ 36

4.9推荐的上电顺序............................................ ................................................. 36

4.10复位和供电.................................................................................................................... 36

4.11电源，接地和PCB布局......................................... ....................................... 36

2

DS717F2

CS42888

5.注册快速参考........................................................................................................ 38

6.注册说明.................................................................................................................. 40

6.1存储器地址指针（ MAP） ..................................................................................................... 40

6.1.1递增（增量） .................................................................................................................. 40

6.1.2存储器地址指针（MAP [ 6 ： 0 ] ） .................................... ................................................. 40

6.2芯片内径和修订寄存器（地址01H ） （只读） ....................................... .................. 40

6.2.1芯片内径（ CHIP_ID [3： 0]）的........................................................................................................ 40

6.2.2芯片版本（ REV_ID [ 3 ： 0 ] ） ..................................... .................................................. .......... 40

6.3电源控制（地址02H ） ......................................................................................................... 41

6.3.1掉电对ADC （ PDN_ADCX ） ........................................ ......................................... 41

6.3.2掉电DAC双（ PDN_DACX ） ........................................ ......................................... 41

6.3.3掉电（ PDN ） ............................................................................................................... 41

6.4功能模式（地址03H ） ..................................................................................................... 42

6.4.1数模转换器功能模式（ DAC_FM [1 ：0]） .................................... .............................................. 42

6.4.2模数转换器功能模式（ ADC_FM [1 ：0]） .................................... .............................................. 42

6.4.3 MCLK的频率（ MFREQ [2 ：0]） ..................................... .................................................. .... 42

6.5接口格式（地址04H ） ........................................... .................................................. ....... 43

6.5.1冻结控制（ FREEZE ） .......................................... .................................................. ....... 43

6.5.2辅助数字接口格式（ AUX_DIF ） ........................................ ................................ 43

6.5.3数模转换器数字接口格式（ DAC_DIF [2 ：0]） ................................... .................................... 43

6.5.4模数转换器数字接口格式（ ADC_DIF [2 ：0]） ................................... .................................... 44

6.6 ADC控制& DAC去加重（地址05H ） ..................................... ................................... 44

6.6.1 ADC1-2高通滤波器冻结（ ADC1-2_HPF FREEZE ） ................................. ................. 44

6.6.2 DAC去加重控制（ DAC_DEM ） ....................................... ........................................ 45

6.6.3 ADC1单端模式（ ADC1单） ..................................... ................................... 45

6.6.4 ADC2单端模式（ ADC2单） ..................................... ................................... 45

6.7过渡控制（地址06H ） ........................................... .................................................. ....... 45

6.7.1单音量控制（ DAC_SNGVOL ， ADC_SNGVOL ） ....................................... ............. 45

6.7.2软斜坡和零交叉控制（ ADC_SZC [ 1 ： 0 ] ， DAC_SZC [ 1 ： 0 ] ） .......................... ........ 46

6.7.3自动静音（ AMUTE ） .............................................................................................................. 46

6.7.4静音ADC的串行端口（ MUTE ADC_SP ） ....................................... ........................................ 47

6.8 DAC通道静音（地址07H ） .......................................... .................................................. ..... 47

6.8.1独立通道静音（ AOUTX_MUTE ） ......................................... .............................. 47

6.9 AOUTX音量控制（地址08h-的0Fh ） ........................................ .................................. 47

6.9.1音量控制（ AOUTX_VOL [ 7 ： 0 ] ） ..................................... ................................................. 47

6.10 DAC通道反转（地址10H ） .......................................... .................................................. .. 48

6.10.1反转信号极性（ INV_AOUTX ） ......................................... ........................................... 48

6.11 AINX音量控制（地址11H - 14H） ........................................ ............................................. 48

6.11.1 AINX音量控制（ AINX_VOL [ 7 ： 0 ] ） .................................... .......................................... 48

6.12 ADC通道反转（地址17H） .......................................... .................................................. .. 49

6.12.1反转信号极性（ INV_AINX ） ......................................... ............................................... 49

6.13状态控制（地址18H） ....................................................................................................... 49

6.13.1中断引脚控制（ INT [ 1 ： 0 ] ） .................................... .................................................. ...... 49

6.14状态（地址19H） （只读） ........................................ .................................................. ..... 49

6.14.1 DAC时钟错误（ DAC_CLK ERROR ） ........................................ ............................... 49

6.14.2 ADC时钟错误（ ADC_CLK ERROR ） ........................................ ............................... 50

6.14.3 ADC溢出（ ADCX_OVFL ） .......................................... .................................................. 。 50

6.15状态面膜（地址为1Ah ） .......................................................................................................... 50

6.16 MUTEC引脚控制（地址1BH ） .......................................... .................................................. 50 ..

6.17 MUTEC极性选择（ MCPOLARITY ） ........................................... ........................................... 50

6.18静音控制活动（ MUTEC ACTIVE ） .......................................... .............................................. 50

7.外部滤波器........................................................................................................................... 51

7.1 ADC输入滤波器.............................................................................................................................. 51

7.1.1被动输入滤波器................................................................................................................ 52

DS717F2

3

CS42888

7.1.2被动输入滤波器W /衰减......................................... ................................................ 52

7.2 DAC输出滤波器........................................................................................................................... 53

8. ADC滤波器PLOTS ............................................................................................................................ 54

9. DAC FILTER PLOTS ............................................................................................................................ 56

10.参数定义.............................................................................................................. 58

11.参考文献： .................................................................................................................................... 59

12.封装信息................................................................................................................ 60

12.1热特性............................................................................................................... 60

13.订购信息.............................................................................................................. 61

14.修订历史.......................................................................................................................... 61

图列表

图1.Typical连接图......................................................................................................... 9

图2.输出测试电路的最大负载......................................... .............................................. 16

图3.最大装载....................................................................................................................... 16

图4.Serial音频接口从机模式时序......................................... ......................................... 18

图5.TDM串行音频接口时序.......................................... .................................................. 18

图6.Serial音频接口主控模式时序......................................... ....................................... 19

图7.Serial音频接口从机模式时序......................................... ......................................... 20

图8.控制端口时序 - IC格式......................................... .................................................. ...... 21

图9.Control端口时序 - SPI格式......................................... .................................................. ..... 22

图10.Full量程输入......................................................................................................................... 25

图11.Audio输出初始化流程图.......................................... ............................................. 26

图12.Full量程输出...................................................................................................................... 28

图13.De加重曲线.................................................................................................................. 29

图14.IS格式................................................................................................................................. 31

图15.Left对齐格式................................................................................................................. 31

图16.Right对齐格式............................................................................................................... 31

图17.One行模式＃ 1格式........................................................................................................ 31

图18.One行模式＃ 2格式........................................................................................................ 32

图19.TDM格式.............................................................................................................................. 32

图20.AUX IS格式......................................................................................................................... 33

图21.AUX左对齐格式......................................................................................................... 33

图22.Control端口时序在SPI模式......................................... .................................................. ... 34

图23.Control端口时序， IC写......................................... .................................................. ........ 35

图24.Control端口时序， IC读......................................... .................................................. ........ 35

图25.Single至差分有源输入滤波器....................................... .............................................. 51

图26.Single端有源输入滤波器......................................... .................................................. ..... 51

图27.Passive输入滤波器................................................................................................................... 52

图28.Passive输入滤波器W /衰减......................................... .................................................. .. 52

图29.Active模拟输出滤波器....................................................................................................... 53

图30.Passive模拟输出滤波器........................................... .................................................. ....... 53

图31.SSM阻带抑制.......................................................................................................... 54

图32.SSM过渡带................................................................................................................ 54

图33.SSM过渡带（详细信息） ......................................... .................................................. ........ 54

图34.SSM通带纹波.............................................................................................................. 54

图35.DSM阻带抑制.......................................................................................................... 54

图36.DSM过渡带................................................................................................................ 54

图37.DSM过渡带（详细信息） ......................................... .................................................. ........ 55

图38.DSM通带纹波.............................................................................................................. 55

图39.QSM阻带抑制......................................................................................................... 55

图40.QSM过渡带................................................................................................................ 55

图41.QSM过渡带（详细信息） ......................................... .................................................. ........ 55

4

DS717F2

CS42888

图42.QSM通带纹波.............................................................................................................. 55

图43.SSM阻带抑制.......................................................................................................... 56

图44.SSM过渡带................................................................................................................ 56

图45.SSM过渡带（详细） ......................................... .................................................. ......... 56

图46.SSM通带纹波.............................................................................................................. 56

图47.DSM阻带抑制.......................................................................................................... 56

图48.DSM过渡带................................................................................................................ 56

图49.DSM过渡带（详细） ......................................... .................................................. ......... 57

图50.DSM通带纹波.............................................................................................................. 57

图51.QSM阻带抑制......................................................................................................... 57

图52.QSM过渡带................................................................................................................ 57

图53.QSM过渡带（详细） ......................................... .................................................. ......... 57

图54.QSM通带纹波.............................................................................................................. 57

表格清单

表1. I / O电源轨............................................................................................................................. 8

表2.单速模式常用频率......................................... ....................................... 29

表3倍速模式常用频率......................................... ...................................... 29

表4.四倍速模式常用频率......................................... ........................................ 29

表5. IS ， LJ ， RJ时钟比率..............................................................................................................三十

表6. OLM ＃ 1时钟比率...................................................................................................................三十

表7. OLM ＃ 2的时钟比率...................................................................................................................三十

表8. TDM时钟比率.......................................................................................................................三十

表9.串行音频接口信道分配.......................................... ....................................... 33

表10. MCLK频率设定为IS ，左，右对齐接口格式.......................... 42

表12. DAC数字接口格式........................................... .................................................. ..... 43

表11. MCLK频率设定为TDM & OLM接口格式...................................... ........... 43

表13. ADC数字接口格式........................................... .................................................. ..... 44

表14.示例AOUT音量设置........................................... .................................................. 47

表15.示例AIN音量设置........................................... .................................................. ..... 48

DS717F2

5

CS42888

108分贝192千赫4中，8输出编解码器

特点

4个24位A / D， 8个24位D / A转换器

ADC的动态范围

- 105分贝差

- 102分贝单端

DAC的动态范围

- 108分贝差

- 105分贝单端

ADC / DAC THD + N

- -98 dB差分

- -95分贝单端

兼容行业标准的时间

分复用（TDM）串行接口

系统采样率高达192 kHz

直流可编程ADC高通滤波器

偏移校准

对数数字音量控制

IC

& SPI

主机控制端口

支持5 V和1.8 V的逻辑电平

Popguard

技术

概述

该编解码器CS42888提供

FOUR

多比特模拟到

数字和8的多比特数字 - 模拟Σ-Δ

转换器。该编解码器能够运行与EI型

疗法差分或单端输入和输出，在

64引脚LQFP封装。

FOUR

全差分或单端输入都可用

可以对立体声ADC1和ADC

2

。数字音量控制

是为每个ADC通道，可选择过

流量检测。

所有8个DAC通道数字音量控制

并且可以与差分或单端操作

输出。

辅助串行输入，可额外2

PCM数据通道。

该CS42888可在一个64引脚LQFP封装

商业（ -10 °至+ 70 °），汽车（ -40°至

+ 105 ° ）的成绩。该CDB42888客户Demonstra-

灰板也可用于设备的评估和

实施意见。请参阅

“订购

第61页上的信息“

对于完整的订购

信息。

该CS42888是理想的音频系统，要求广泛

动态范围，高保真和低噪音等

如A / V接收器， DVD接收器和车载音响

系统。

控制端口串行&

音频端口供电=

1.8 V至5 V

数字电源=

3.3 V至5 V

模拟电源=

3.3 V至5 V

电平转换器

I

2

C / SPI

软件模式

控制数据

注册

CON组fi guration

ADC溢出

&时钟误差

打断

内部电压

参考

外

静音控制

MUTE（静音）

控制

打断

RESET

PCM和TDM串行

接口

串行音频

输入

电平转换器

的辅助系列

音频输入

输入主

时钟

串行音频

产量

卷

控制

数字

过滤器

Σ

调制器

多位

DAC1-4和

模拟滤波器

8

8

差分或

单端

输出

高通

滤波器

数字

过滤器

多位

过采样

ADC1

多位

过采样

ADC2

2

2

高通

滤波器

数字

过滤器

差分或单

端模拟输入

2

2

http://www.cirrus.com

版权

Cirrus Logic公司， 2006年公司

（版权所有）

八月'06

DS717F1

CS42888

目录

1.引脚说明.............................................................................................................................. 6

1.1数字I / O引脚特性........................................................................................................... 8

2.典型连接图............................................. .................................................. 9 ....

3.特性和规范............................................. ........................................ 10

推荐工作条件............................................... .................................... 10

绝对最大额定值....................................................................................................... 10

模拟输入特性（商业） ............................................ ........................ 11

模拟输入特性（汽车） ............................................ ......................... 12

ADC数字滤波器特性.............................................. ......................................... 13

模拟输出特性（商业） ............................................ .................... 14

模拟输出特性（汽车） ............................................ ..................... 15

联合DAC插值&片上模拟滤波器响应.............................. 17

切换规格 - ADC / DAC端口........................................... ................................. 18

开关特性 - AUX口............................................. .................................... 20

切换规范 - 控制端口 - IC模式.......................................... ............. 21

切换规范 - 控制端口 - SPI格式.......................................... ....... 22

DC电气特性............................................... ............................................... 23

数字接口规格&特性............................................. ........ 23

4.应用.................................................................................................................................... 24

4.1概述......................................................................................................................................... 24

4.2模拟输入.................................................................................................................................. 24

4.2.1线路电平输入................................................................................................................... 24

4.2.2高通滤波器和直流偏移校准....................................... .................................... 25

4.3模拟输出............................................................................................................................... 25

4.3.1初始化............................................................................................................................ 25

4.3.2输出瞬态控制....................................................................................................... 27

4.3.3 Popguard ............................................................................................................................... 27

4.3.3.1上电................................................................................................................... 27

4.3.3.2掉电.............................................................................................................. 27

4.3.4静音控制.......................................................................................................................... 27

4.3.5线路电平输出和滤波......................................... .................................................. 28

4.3.6数字音量控制........................................................................................................... 28

4.3.7去重滤波器................................................................................................................ 28

4.4系统时钟............................................................................................................................. 29

4.5编解码器的数字接口格式............................................. .................................................. .... 30

4.5.1 IS .......................................................................................................................................... 31

4.5.2左对齐.......................................................................................................................... 31

4.5.3右对齐........................................................................................................................ 31

4.5.4 OLM ＃ 1 .................................................................................................................................. 31

4.5.5 OLM ＃ 2 .................................................................................................................................. 32

4.5.6 TDM ....................................................................................................................................... 32

4.5.7 I / O信道分配........................................................................................................... 33

4.6 AUX端口数字接口格式............................................ .................................................. ... 33

4.6.1 IS .......................................................................................................................................... 33

4.6.2左对齐.......................................................................................................................... 33

4.7控制端口的描述和时序............................................ .................................................. 33

4.7.1 SPI模式............................................................................................................................... 34

4.7.2 IC模式................................................................................................................................ 34

4.8中断......................................................................................................................................... 36

4.9推荐的上电顺序............................................ ................................................. 36

4.10复位和供电.................................................................................................................... 36

4.11电源，接地和PCB布局......................................... ........................................ 36

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5.注册快速参考......................................................................................................... 38

6.注册说明................................................................................................................... 40

6.1存储器地址指针（ MAP） ..................................................................................................... 40

6.1.1递增（增量） .................................................................................................................. 40

6.1.2存储器地址指针（MAP [ 6 ： 0 ] ） .................................... ................................................. 40

6.2芯片内径和修订寄存器（地址01H ） （只读） ....................................... ................... 40

6.2.1芯片内径（ CHIP_ID [3： 0]）的........................................................................................................ 40

6.2.2芯片版本（ REV_ID [ 3 ： 0 ] ） ..................................... .................................................. .......... 40

6.3电源控制（地址02H ） ......................................................................................................... 41

6.3.1掉电对ADC （ PDN_ADCX ） ........................................ ......................................... 41

6.3.2掉电DAC双（ PDN_DACX ） ........................................ ......................................... 41

6.3.3掉电（ PDN ） ............................................................................................................... 41

6.4功能模式（地址03H ） ...................................................................................................... 42

6.4.1数模转换器功能模式（ DAC_FM [1 ：0]） .................................... .............................................. 42

6.4.2模数转换器功能模式（ ADC_FM [1 ：0]） .................................... .............................................. 42

6.4.3 MCLK的频率（ MFREQ [2 ：0]） ..................................... .................................................. .... 42

6.5接口格式（地址04H ） ........................................... .................................................. ....... 43

6.5.1冻结控制（ FREEZE ） .......................................... .................................................. ....... 43

6.5.2辅助数字接口格式（ AUX_DIF ） ........................................ ................................ 43

6.5.3数模转换器数字接口格式（ DAC_DIF [2 ：0]） ................................... .................................... 43

6.5.4模数转换器数字接口格式（ ADC_DIF [2 ：0]） ................................... .................................... 44

6.6 ADC控制& DAC去加重（地址05H ） ..................................... ................................... 44

6.6.1 ADC1-2高通滤波器冻结（ ADC1-2_HPF FREEZE ） ................................. ................. 44

6.6.2 DAC去加重控制（ DAC_DEM ） ....................................... ........................................ 45

6.6.3 ADC1单端模式（ ADC1单） ..................................... ................................... 45

6.6.4 ADC2单端模式（ ADC2单） ..................................... ................................... 45

6.7过渡控制（地址06H ） ........................................... .................................................. ....... 45

6.7.1单音量控制（ DAC_SNGVOL ， ADC_SNGVOL ） ....................................... ............. 45

6.7.2软斜坡和零交叉控制（ ADC_SZC [ 1 ： 0 ] ， DAC_SZC [ 1 ： 0 ] ） .......................... ........ 46

6.7.3自动静音（ AMUTE ） .............................................................................................................. 46

6.7.4静音ADC的串行端口（ MUTE ADC_SP ） ....................................... ........................................ 47

6.8 DAC通道静音（地址07H ） .......................................... .................................................. ..... 47

6.8.1独立通道静音（ AOUTX_MUTE ） ......................................... .............................. 47

6.9 AOUTX音量控制（地址08h-的0Fh ） ........................................ .................................. 47

6.9.1音量控制（ AOUTX_VOL [ 7 ： 0 ] ） ..................................... ................................................. 47

6.10 DAC通道反转（地址10H ） .......................................... .................................................. .. 48

6.10.1反转信号极性（ INV_AOUTX ） ......................................... ........................................... 48

6.11 AINX音量控制（地址11H - 14H） ........................................ ............................................. 48

6.11.1 AINX音量控制（ AINX_VOL [ 7 ： 0 ] ） .................................... .......................................... 48

6.12 ADC通道反转（地址17H） .......................................... .................................................. .. 48

6.12.1反转信号极性（ INV_AINX ） ......................................... ............................................... 49

6.13当启用时，这些位将反转各自channels.Status控制的信号极性

（地址18H） ....................................................................................................................................... 49

6.13.1中断引脚控制（ INT [ 1 ： 0 ] ） .................................... .................................................. ...... 49

6.14状态（地址19H） （只读） ........................................ .................................................. ...... 49

6.14.1 DAC时钟错误（ DAC_CLK ERROR ） ........................................ ................................ 49

6.14.2 ADC时钟错误（ ADC_CLK ERROR ） ........................................ ................................ 50

6.14.3 ADC溢出（ ADCX_OVFL ） .......................................... .................................................. 。 50

6.15状态面膜（地址为1Ah ） .......................................................................................................... 50

6.16 MUTEC引脚控制（地址1BH ） .......................................... .................................................. 50 ..

6.17 MUTEC极性选择（ MCPOLARITY ） ........................................... ........................................... 50

6.18静音控制ACTIVE （ MUTEC ACTIVE ） .......................................... ................................... 50

7.外部FILTERS............................................................................................................................ 51

7.1 ADC输入滤波器.............................................................................................................................. 51

DS717F1

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7.1.1被动输入滤波器................................................................................................................ 52

7.1.2被动输入滤波器W /衰减......................................... ................................................ 52

7.2 DAC输出滤波器........................................................................................................................... 53

8. ADC滤波器PLOTS............................................................................................................................. 54

9.过滤器DAC PLOTS............................................................................................................................. 56

10.参数DEFINITIONS............................................................................................................... 58

11 。 REFERENCES..................................................................................................................................... 59

12.包装INFORMATION................................................................................................................. 60

12.1热特性............................................................................................................. 60

13.订购信息............................................................................................................... 61

14.修订历史........................................................................................................................... 61

图列表

图1.Typical连接图......................................................................................................... 9

图2.输出测试电路的最大负载......................................... .............................................. 16

图3.最大装载....................................................................................................................... 16

图4.Serial音频接口从机模式时序......................................... ......................................... 18

图5.TDM串行音频接口时序.......................................... .................................................. 18

图6.Serial音频接口主控模式时序......................................... ....................................... 19

图7.Serial音频接口从机模式时序......................................... ......................................... 20

图8.控制端口时序 - IC格式......................................... .................................................. ...... 21

图9.Control端口时序 - SPI格式......................................... .................................................. ..... 22

图10.Full量程输入......................................................................................................................... 25

图11.Audio输出初始化流程图.......................................... ............................................. 26

图12.Full量程输出...................................................................................................................... 28

图13.De加重曲线.................................................................................................................. 29

图14.IS格式................................................................................................................................. 31

图15.Left对齐格式................................................................................................................. 31

图16.Right对齐格式............................................................................................................... 31

图17.One行模式＃ 1格式........................................................................................................ 31

图18.One行模式＃ 2格式........................................................................................................ 32

图19.TDM格式.............................................................................................................................. 32

图20.AUX IS格式......................................................................................................................... 33

图21.AUX左对齐格式......................................................................................................... 33

图22.Control端口时序在SPI模式......................................... .................................................. ... 34

图23.Control端口时序， IC写......................................... .................................................. ........ 35

图24.Control端口时序， IC读......................................... .................................................. ........ 35

图25.Single至差分有源输入滤波器....................................... .............................................. 51

图26.Single端有源输入滤波器......................................... .................................................. ..... 51

图27.Passive输入滤波器................................................................................................................... 52

图28.Passive输入滤波器W /衰减......................................... .................................................. .. 52

图29.Active模拟输出滤波器....................................................................................................... 53

图30.Passive模拟输出滤波器........................................... .................................................. ....... 53

图31.SSM阻带抑制.......................................................................................................... 54

图32.SSM过渡带................................................................................................................ 54

图33.SSM过渡带（详细信息） ......................................... .................................................. ........ 54

图34.SSM通带纹波.............................................................................................................. 54

图35.DSM阻带抑制.......................................................................................................... 54

图36.DSM过渡带................................................................................................................ 54

图37.DSM过渡带（详细信息） ......................................... .................................................. ........ 55

图38.DSM通带纹波.............................................................................................................. 55

图39.QSM阻带抑制......................................................................................................... 55

图40.QSM过渡带................................................................................................................ 55

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图41.QSM过渡带（详细信息） ......................................... .................................................. ........ 55

图42.QSM通带纹波.............................................................................................................. 55

图43.SSM阻带抑制.......................................................................................................... 56

图44.SSM过渡带................................................................................................................ 56

图45.SSM过渡带（详细） ......................................... .................................................. ......... 56

图46.SSM通带纹波.............................................................................................................. 56

图47.DSM阻带抑制.......................................................................................................... 56

图48.DSM过渡带................................................................................................................ 56

图49.DSM过渡带（详细） ......................................... .................................................. ......... 57

图50.DSM通带纹波.............................................................................................................. 57

图51.QSM阻带抑制......................................................................................................... 57

图52.QSM过渡带................................................................................................................ 57

图53.QSM过渡带（详细） ......................................... .................................................. ......... 57

图54.QSM通带纹波.............................................................................................................. 57

表格清单

表1. I / O电源轨............................................................................................................................. 8

表2.单速模式常用频率......................................... ....................................... 29

表3倍速模式常用频率......................................... ...................................... 29

表4.四倍速模式常用频率......................................... ........................................ 29

表5. IS ， LJ ， RJ时钟比率..............................................................................................................三十

表6. OLM ＃ 1时钟比率...................................................................................................................三十

表7. OLM ＃ 2的时钟比率...................................................................................................................三十

表8. TDM时钟比率.......................................................................................................................三十

表9.串行音频接口信道分配.......................................... ....................................... 33

表10. MCLK频率设定为IS ，左，右对齐接口格式.......................... 42

表12. DAC数字接口格式........................................... .................................................. ..... 43

表11. MCLK频率设定为TDM & OLM接口格式...................................... ........... 43

表13. ADC数字接口格式........................................... .................................................. ..... 44

表14.示例AOUT音量设置........................................... .................................................. 47

表15.示例AIN音量设置........................................... .................................................. ..... 48

DS717F1

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