目录

1引脚说明 - 软件模式............................................ .................................... 6

1.1数字I / O引脚特性........................................... ................................................. 7

2引脚说明 - 硬件模式............................................ ................................ 8

3典型连接图.............................................. ...................................... 10

4特性和规范.............................................. ......................... 12

指定的运行条件............................................... ................................ 12

绝对最大额定值............................................... .......................................... 12

模拟输入特性（ CS42432 - CMZ ） .......................................... ............. 13

模拟输入特性（ CS42432 -DMZ ） .......................................... ............. 14

ADC数字滤波器特性.............................................. ........................... 15

模拟输出特性（ CS42432 - CMZ ） .......................................... ......... 16

模拟输出特性（ CS42432 -DMZ ） .......................................... ......... 18

联合DAC插值&片上模拟滤波器响应................ 20

切换规格 - ADC / DAC端口........................................... ................... 21

开关特性 - AUX口............................................. ...................... 22

切换规范 - 控制端口 - IC模式......................................... 23

切换规范 - 控制端口 - SPI格式................................... 24

DC电气特性............................................... .................................. 25

数字接口规格&特性....................................... 25

5应用程序....................................................................................................................... 26

5.1概述.......................................................................................................................... 26

5.2模拟输入................................................................................................................... 27

5.2.1线路电平输入............................................ .................................................. ... 27

5.2.2高通滤波器和直流偏移校准........................................ ............... 27

5.3模拟输出................................................................................................................ 28

5.3.1初始化......................................................................................................... 28

5.3.2线路电平输出和滤波......................................... ................................. 28

5.3.3数字音量控制............................................ ............................................ 30

5.3.4去重滤波器........................................... .................................................. 。 30

5.4系统时钟.............................................................................................................. 31

5.5 CODEC数字接口.............................................. .................................................. .. 31

5.5.1 TDM .................................................................................................................... 31

5.5.2 I / O信道分配.......................................... .............................................. 32

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

5.6.1 IS ........................................................................................................................ 33

5.6.2左对齐........................................................................................................ 33

5.7控制端口的描述和时序............................................ .................................... 34

5.7.1 SPI模式............................................................................................................ 34

5.7.2 I

2

C模式............................................................................................................. 35

5.8推荐的上电顺序............................................ ................................... 36

5.8.1硬件模式............................................. .................................................. .... 36

5.8.2软件模式............................................. .................................................. ..... 36

5.9复位和上电....................................................................................................... 36

5.10电源，接地和PCB布局......................................... .......................... 37

6寄存器快速参考.............................................. ............................................. 38

7寄存器描述..................................................................................................... 40

7.1存储器地址指针（ MAP） ........................................... ............................................ 40

7.2芯片内径和修订寄存器（地址01H ） （只读） ....................................... ..... 40

7.3电源控制（地址02H ） ........................................... ................................................. 41

7.4功能模式（地址03H ） ........................................... ............................................. 42

7.5其他控制（地址04H ） ........................................... .................................... 42

2

DS673PP2