参数资料
型号: ADAU1461WBCPZ
厂商: Analog Devices Inc
文件页数: 52/88页
文件大小: 0K
描述: IC SIGMADSP 24BIT 96KHZ PLL 32
标准包装: 1
系列: SigmaDSP®
类型: 音频处理器
应用: 车载音频
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘,CSP
供应商设备封装: 32-LFCSP-VQ
包装: 托盘
ADAU1461
Rev. 0 | Page 56 of 88
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 41. 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 90 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 42. 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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