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WM8946ECS/R Datasheet(PDF) 134 Page - Wolfson Microelectronics plc

Part # WM8946ECS/R
Description  Stereo Low-Power CODEC with Video Buffer
PDF  175 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8946ECS/R Datasheet(HTML) 134 Page - Wolfson Microelectronics plc

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WM8946
Production Data
w
PD, July 2012, Rev 4.3
134
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
1:0
P_PGAL_SEL
[1:0]
01
Left Input PGA Non-Inverting Input Select
00 = Connected to IN2L
01 = Connected to IN1L
10 = Connected to AUX1
11 = Reserved
Register 27h Input ctrl
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R40 (28h)
Left INP
PGA gain
ctrl
8
PGA_VU
0
Input PGA Volume Update
Writing a 1 to this bit will cause the Left and Right Input
PGA volumes to be updated simultaneously.
7
PGAL_ZC
0
Left Input PGA Zero Cross Detector
0 = Change gain immediately
1 = Change gain on zero cross only
6
PGAL_MUTE
1
Left Input PGA Mute
0 = Disable Mute
1 = Enable Mute
5:0
PGAL_VOL[5:0
]
01_0000
Left Input PGA Volume
00_0000 = -12dB
00_0001 = -11.25dB
…
01_0000 = 0dB
...
11_1111 = +35.25
Register 28h Left INP PGA gain ctrl
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R41 (29h)
Right INP
PGA gain
ctrl
8
PGA_VU
0
Input PGA Volume Update
Writing a 1 to this bit will cause the Left and Right Input
PGA volumes to be updated simultaneously.
7
PGAR_ZC
0
Right Input PGA Zero Cross Detector
0 = Change gain immediately
1 = Change gain on zero cross only
6
PGAR_MUTE
1
Right Input PGA Mute
0 = Disable Mute
1 = Enable Mute
5:0
PGAR_VOL[5:
0]
01_0000
Right Input PGA Volume
00_0000 = -12dB
00_0001 = -11.25dB
…
01_0000 = 0dB
...
11_1111 = +35.25
Register 29h Right INP PGA gain ctrl



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