参数资料
型号: CS4205-KQZ
厂商: Cirrus Logic Inc
文件页数: 31/81页
文件大小: 0K
描述: IC CODEC AC97 I2S 48-LQFP
标准包装: 250
类型: 音频编解码器 '97
数据接口: 串行
分辨率(位): 18,20 b
ADC / DAC 数量: 1 / 2
三角积分调变:
动态范围,标准 ADC / DAC (db): 90 / 90
电压 - 电源,模拟: 4.75 V ~ 5.25 V
电压 - 电源,数字: 4.75 V ~ 5.25 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 48-LQFP
供应商设备封装: 48-TQFP(9x9)
包装: 托盘
产品目录页面: 754 (CN2011-ZH PDF)
其它名称: 598-1182
CS4205
DS489PP4
37
5.16
Extended Audio Status/Control Register (Index 2Ah)
PRL
Mic ADC Powerdown. When ‘set’, the PRL bit powers down the dedicated Mic ADC and cor-
responding input gain stage. To use the dedicated Mic ADC, clear the PRL bit first.
MADC
Mic ADC Ready Status. When ‘set’, the MADC bit indicates the dedicated Mic ADC is ready
to transmit data.
VRM
Enable Variable Rate Mic Audio. When ‘set’, the VRM bit allows access to the Mic ADC Rate
Register (Index 34h). This bit must be ‘set’ in order to use variable mic capture rates. The
VRM bit also serves as a powerdown for the Mic ADC SRC block. Clearing VRM will reset the
Mic ADC Rate Register (Index 34h) to its default value and the SRC data path is flushed.
VRA
Enable Variable Rate Audio. When ‘set’, the VRA bit allows access to the PCM Front DAC
Rate Register (Index 2Ch) and the PCM L/R ADC Rate Register (Index 32h). This bit must
be ‘set’ in order to use variable PCM playback or capture rates. The VRA bit also serves as
a powerdown for the DAC and ADC SRC blocks. Clearing VRA will reset the PCM Front DAC
Rate Register (Index 2Ch) and the PCM L/R ADC Rate Register (Index 32h) to their default
values. The SRC data path is flushed and the Slot Request bits for the currently active DAC
slots will be fixed at ‘0’.
Default
4000h
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
0
PRL
0
MADC
0
VRM
0
VRA
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