5.16 Extended Audio Status/Control Register (Index 2Ah) PRL Mic ADC Powerdown. When ‘set’, the PRL bit powers down th" />
參數(shù)資料
型號(hào): CS4205-KQZ
廠商: Cirrus Logic Inc
文件頁(yè)數(shù): 31/81頁(yè)
文件大?。?/td> 0K
描述: IC CODEC AC97 I2S 48-LQFP
標(biāo)準(zhǔn)包裝: 250
類型: 音頻編解碼器 '97
數(shù)據(jù)接口: 串行
分辨率(位): 18,20 b
ADC / DAC 數(shù)量: 1 / 2
三角積分調(diào)變:
動(dòng)態(tài)范圍,標(biāo)準(zhǔn) ADC / DAC (db): 90 / 90
電壓 - 電源,模擬: 4.75 V ~ 5.25 V
電壓 - 電源,數(shù)字: 4.75 V ~ 5.25 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 48-LQFP
供應(yīng)商設(shè)備封裝: 48-TQFP(9x9)
包裝: 托盤
產(chǎn)品目錄頁(yè)面: 754 (CN2011-ZH PDF)
其它名稱: 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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