參數(shù)資料
型號(hào): ADAU1761BCPZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 55/92頁(yè)
文件大小: 0K
描述: IC SIGMADSP CODEC PLL 32LFCSP
設(shè)計(jì)資源: Stereo Digital Microphone Input Using ADAU1761 and ADMP421 (CN0078)
標(biāo)準(zhǔn)包裝: 1
系列: SigmaDSP®
類型: 音頻編解碼器
數(shù)據(jù)接口: 串行
分辨率(位): 24 b
ADC / DAC 數(shù)量: 2 / 2
三角積分調(diào)變:
電壓 - 電源,模擬: 1.8 V ~ 3.65 V
電壓 - 電源,數(shù)字: 1.63V ~ 3.65V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 32-LFCSP-VQ
包裝: 托盤
產(chǎn)品目錄頁(yè)面: 776 (CN2011-ZH PDF)
配用: EVAL-ADAU1761Z-ND - BOARD EVAL FOR ADAU1761
ADAU1761
Rev. C | Page 59 of 92
R9: Right Differential Input Volume Control, 16,399 (0x400F)
This register enables the differential path and sets the volume control for the right differential PGA input.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RDVOL[5:0]
RDMUTE
RDEN
Table 43. Right Differential Input Volume Control Register
Bits
Bit Name
Description
[7:2]
RDVOL[5:0]
Right channel differential PGA input volume control. The right differential input uses the RINP (positive signal)
and RINN (negative signal) pins. Each step corresponds to a 0.75 dB increase in gain. See Table 92 for a complete
list of the volume settings.
Setting
Volume
000000
12 dB (default)
000001
11.25 dB
010000
0 dB
111110
34.5 dB
111111
35.25 dB
1
RDMUTE
Right differential input mute control.
0 = mute (default).
1 = unmute.
0
RDEN
Right differential PGA enable. When enabled, the RINP and RINN pins are used as a full differential pair. When
disabled, these two pins are configured as two single-ended inputs with the signals routed around the PGA.
0 = disabled (default).
1 = enabled.
R10: Record Microphone Bias Control, 16,400 (0x4010)
This register controls the MICBIAS pin settings for biasing electret type analog microphones.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Reserved
MPERF
MBI
Reserved
MBIEN
Table 44. Record Microphone Bias Control Register
Bits
Bit Name
Description
3
MPERF
Microphone bias is enabled for high performance or normal operation. High performance operation sources
more current to the microphone.
0 = normal operation (default).
1 = high performance.
2
MBI
Microphone voltage bias as a fraction of AVDD.
0 = 0.90 × AVDD (default).
1 = 0.65 × AVDD.
0
MBIEN
Enables the MICBIAS output.
0 = disabled (default).
1 = enabled.
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