參數(shù)資料
型號: EVAL-ADAU1781Z
廠商: Analog Devices Inc
文件頁數(shù): 51/92頁
文件大小: 0K
描述: BOARD EVAL FOR ADAU1781
標(biāo)準(zhǔn)包裝: 1
系列: SigmaDSP®
主要目的: 音頻編解碼器
嵌入式: 是,DSP
已用 IC / 零件: ADAU1781
主要屬性: 立體聲,24 位,8 ~ 96 kHz 采樣率,GUI 工具
次要屬性: *
已供物品: *
ADAU1781
Rev. B| Page 55 of 92
Register 16398 (0x400E), Record Gain Left PGA
The record gain left PGA control register controls the left channel
input PGA. This register configures the input for either differ-
ential or single-ended signals and sets the left channel input
recording volume.
Bits[7:5], Left Input Gain
These bits set the left channel analog microphone input PGA gain.
Bit 2, Single-Ended Left Input Enable
If this bit is high (enabled), a single-ended input can be input on
the LMIC pin and gained by the PGA. The positive differential
input pin (LMICP) is disabled, and the complementary input of
the PGA is switched to common mode.
Bit 1, Record Path Left Mute
This bit mutes the left channel input PGA.
Bit 0, Left PGA Enable
This bit enables the left channel input PGA
Table 43. Record Gain Left PGA Register
Bits
Description
Default
[7:5]
Left input gain
000
000: 0 dB
001: 6 dB
010: 10 dB
011: 14 dB
100: 17 dB
101: 20 dB
110: 26 dB
111: 32 dB
[4:3]
Reserved
2
Single-ended left input enable
0
0: disabled
1: enabled
1
Record path left mute
0
0: muted
1: unmuted
0
Left PGA enable
0
0: disabled
1: enabled
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