adau1781bcpz-rl Analog Devices, Inc., adau1781bcpz-rl Datasheet - Page 55

• Manufacturer Part Number: adau1781bcpz-rl
• Description: Low Noise Stereo Codec With Sigmadsp Processing Core
• Manufacturer: Analog Devices, Inc.

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
Table 43. Record Gain Left PGA Register
Bits
[7:5]
[4:3]
2
1
0
Description
Left input gain
000: 0 dB
001: 6 dB
010: 10 dB
011: 14 dB
100: 17 dB
101: 20 dB
110: 26 dB
111: 32 dB
Reserved
Single-ended left input enable
0: disabled
1: enabled
Record path left mute
0: muted
1: unmuted
Left PGA enable
0: disabled
1: enabled
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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
Default
000
0
0
0
ADAU1781