參數(shù)資料
型號(hào): ADAU1382BCPZ
廠商: ANALOG DEVICES INC
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQCC32
封裝: 5 X 5 MM, ROHS COMPLIANT, MO-220VHHD2, LFCSP-32
文件頁數(shù): 48/84頁
文件大?。?/td> 1193K
代理商: ADAU1382BCPZ
ADAU1382
Rev. 0 | Page 52 of 84
Register 16400 (0x4010), Microphone Bias Control and
Beep Enable
Bit 4, Beep Input Enable
This bit enables the beep signal, which is input to the BEEP pin.
Setting this bit to 0 mutes the beep signal for all output paths.
Bit 3, Microphone High Performance
This bit puts the microphone bias into high performance mode,
by offering more current to the microphone.
Bit 2, Microphone Gain
Provides two voltage bias options, 0.65 × AVDD1 and 0.90 ×
AVDD1. A higher bias contributes to a higher microphone gain.
The maximum current that can be drawn from MICBIAS is 5 mA.
Bit 0, Microphone Bias Enable
This bit enables the MICBIAS output.
Table 39. Microphone Bias Control and Beep Enable Register
Bits
Description
Default
[7:5]
Reserved
4
Beep input enable
0
0: disabled
1: enabled
3
Microphone high performance
0
0: high power
1: low performance
2
Microphone gain
0
0: enabled
1: disabled
1
Reserved
0
Microphone bias enable
0
0: disabled
1: enabled
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