WM9712CLGEFL/RV WOLFSON [Wolfson Microelectronics plc], WM9712CLGEFL/RV Datasheet - Page 20
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WM9712CLGEFL/RV
Manufacturer Part Number
WM9712CLGEFL/RV
Description
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM9712CLGEFLRV.pdf
(78 pages)
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WM9712L
w
RECORD SELECTOR
The record selector determines which input signals are routed into the audio ADC. The left and right
channels can be selected independently. This is useful for recording a phone call: one channel can be
used for the RX signal and the other for the TX signal, so that both sides of the conversation are
digitized.
Table 7 Audio Record Selector
Note:
*In stereo mic mode, MIC1 is routed to the left ADC and MIC2 to the right ADC. In all mono mic
modes, the same signal (MIC1, MIC2 or MIC1-MIC2) is routed to both the left and right ADCs.
See “Microphone Input” section for details.
REGISTER
ADDRESS
1Ah
Record
Select
BIT
14
13:12
11
10:8
2:0
LABEL
BOOST
R2P
R2PBOOST
RECSL
RECSR
DEFAULT
0
11
0
000
000
DESCRIPTION
20dB Boost
1: Boost ADC input signal by 20dB
0 :No boost
Record to phone path enable
00: Left ADC and Right ADC to phone mixer
01 : Left ADC to phone mixer
10: Right ADC to phone imixer
11 : Muted
20dB Boost for ADC to phone signal
1: Boost signal by 20dB
0 :No boost
Left ADC signal source
000: MIC* (pre-PGA)
001-010: Reserved (do not use this setting)
011: Speaker mix
100: LINEINL (pre-PGA)
101: Headphone Mix (left)
110: Phone Mix
111: PHONE (pre-PGA)
Right ADC signal source
000: MIC* (pre-PGA)
001-010: Reserved (do not use this setting)
011: Speaker mix
100: LINEINR (pre-PGA)
101: Headphone Mix (right)
110: Phone Mix
111: PHONE (pre-PGA)
PD, Rev 4.6, November 2011
Production Data
20
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