WM8351
目录
生产数据
描述....................................................................................................... 1
特点............................................................................................................ 1
APPLICATIONS..................................................................................................... 1
典型应用................................................ .................................... 2
框图................................................ ................................................ 3
目录............................................... .......................................... 4
1
引脚配置................................................ .................................. 9
2
订购信息................................................ ......................... 9
3
引脚说明................................................ ..................................... 10
4
热特性................................................ ................ 13
5
绝对最大额定值............................................... ............... 14
6
推荐工作条件.......................................... 15
7
电气特性................................................ ........... 16
HI- FI音频编解码器............................................. .............................................. 16
DC-DC升压转换器，电气特性............... 18
DC-DC降压转换器电气特性......... 19
LDO稳压器的电气特性.................................... 21
电池充电器................................................ ......................................... 22
电流限制开关............................................... ................................... 22
LED驱动器..................................................................................................... 23
通用输入/输出（ GPIO ） .......................................... 23
数字接口................................................ ....................................... 24
辅助ADC ................................................ .............................................. 24
8
典型功耗............................................... ............ 25
9
典型性能数据............................................... ............... 27
9.1 AUDIO CODEC.................................................................................................... 27
9.2 DC -DC转换器............................................. .......................................... 28
9.2.1
电源效率............................................................................................................. 28
9.2.2
输出电压调节............................................... ......................................... 29
9.2.3
动态输出电压............................................... ................................................ 30
9.3 LDO稳压器............................................... ............................................. 31
10
信号时序要求............................................... ............. 32
10.1系统时钟时序.............................................. .................................. 32
10.2音频接口时序 - 主模式........................................... ... 32
10.3音频接口时序 - 从模式........................................... ...... 33
10.4音频接口时序 - TDM模式........................................... .......... 34
10.5控制接口时序.............................................. ....................... 35
11
控制接口................................................ .............................. 38
11.1概述............................................... ................................ 38
11.2控制接口方式.............................................. ....................... 38
11.3 2线串行控制方式........................................... ...................... 39
11.4 3线串行控制方式........................................... ...................... 42
11.5 4线串行控制方式........................................... ...................... 43
11.6寄存器LOCKING ............................................... ....................................... 44
11.7特殊寄存器............................................... ...................................... 44
11.7.1
芯片ID ................................................................................................................................ 44
11.7.2
设备信息...................................................................................................... 44
12
的时钟频率，时间和采样率............................................ 45
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
w
PD ， 2012年4月，修订版4.5
4
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
