ADAU1461
目录
特点................................................. ............................................. 1
应用................................................. ...................................... 1
概述................................................ ......................... 1
功能框图............................................... ............... 1
修订历史................................................ ............................... 2
规格................................................. .................................... 3
模拟性能规格，T
A
= 25°C ....................... 3
模拟性能规格， -40°C <牛逼
A
< + 105 °C ... 5
电源规格............................................... ......... 7
数字滤波器................................................ ................................. 8
数字输入/输出规格........................................... 8
数字时序规范............................................... ...... 9
数字时序图............................................... ............ 10
绝对最大额定值............................................... ........... 12
热阻................................................ .................... 12
ESD注意事项................................................ ................................ 12
引脚配置和功能描述........................... 13
典型性能特征........................................... 15
系统结构图............................................... .................. 18
工作原理............................................... ....................... 21
启动，初始化和电源............................................ ..... 22
上电排序.............................................. ..................... 22
节电模式............................................... ............. 22
数字电源............................................... ................... 22
输入/输出电源供应器............................................. ......... 22
时钟产生和管理........................................ 22
时钟和采样率.............................................. ......... 24
核心时钟................................................ ................................... 24
采样率................................................ ............................ 25
PLL ................................................. .............................................. 25
记录信号路径............................................... ........................... 27
输入信号路径............................................... ........................ 27
模拟 - 数字转换器............................................ ....... 29
自动电平控制（ ALC ） ............................................ ....... 30
ALC参数................................................ .......................... 30
噪声门功能............................................... ................... 31
播放信号路径............................................... ....................... 33
输出信号路径............................................... .................... 33
耳机输出................................................ .................... 34
弹出式和-喀哒声抑制............................................ .......... 35
线路输出................................................ ............................... 35
控制端口................................................ ................................... 36
突发模式写入和读............................................ 36
I
2
端口C ................................................ ........................................ 36
SPI端口................................................ ........................................ 39
串行数据输入/输出端口............................................ ........ 40
应用信息................................................ .............. 42
电源旁路电容.............................................. 42
GSM噪声滤波器............................................... ......................... 42
接地................................................. .................................. 42
裸露焊盘PCB设计.............................................. ........... 42
DSP核心................................................ ......................................... 43
信号处理................................................ ........................ 43
建筑................................................. ............................... 43
程序计数器................................................ ....................... 43
功能................................................. ....................................... 43
启动................................................. ......................................... 43
数字格式................................................ ....................... 44
编程................................................. ............................. 44
程序RAM ，参数RAM和数据RAM ..................... 45
程序RAM ................................................ ............................ 45
参数RAM ................................................ .......................... 45
数据RAM ................................................ ................................... 45
读/写数据格式............................................. ............ 45
软件安全加载................................................ ....................... 46
软件摆................................................ .............................. 47
通用输入/输出............................................ ........ 48
GPIO引脚设置从控制端口...................................... 48
控制寄存器................................................ ............................ 49
控制寄存器详细............................................... ............. 50
外形尺寸................................................ ....................... 88
订购指南................................................ .......................... 88
汽车产品................................................ ................. 88
修订历史
6月10日 - 修订版0 ：初始版
第0版|第88 2
QQ：2880707522 复制
