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WM8940CGEFL/V Datasheet(PDF) 81 Page - Wolfson Microelectronics plc

Part # WM8940CGEFL/V
Description  Mono CODEC with Speaker Driver
PDF  91 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8940CGEFL/V Datasheet(HTML) 81 Page - Wolfson Microelectronics plc

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Production Data
WM8940
w
PD, Rev 4.3, November 2011
81
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
50 (32h)
15:6
000h
Reserved
5
AUX2SPK
0
Output of auxiliary amplifier to speaker mixer input
0 = not selected
1 = selected
Analogue Outputs
4:2
000
Reserved
1
BYP2SPK
0
Bypass path (output of input boost stage) to speaker
mixer input
0 = not selected
1 = selected
Analogue Outputs
0
DAC2SPK
0
Output of DAC to speaker mixer input
0 = not selected
1 = selected
Analogue Outputs
51 (33h)
15:0
0000h
Reserved
52 (34h)
15:0
0000h
Reserved
53 (35h)
15:0
0000h
Reserved
54 (36h)
15:9
00h
Reserved
8
SPKATTN
0
Attenuation control for bypass path (output of input
boost stage) to speaker mixer input
0 = 0dB
1 = -10dB
Analogue Outputs
7
SPKZC
0
Speaker Volume control zero cross enable:
1 = Change gain on zero cross only
0 = Change gain immediately
Analogue Outputs
6
SPKMUTE
1
Speaker output mute enable
0=Speaker output enabled
1=Speaker output muted (VMIDOP)
Analogue Outputs
5:0
SPKVOL
111001
Speaker Volume Adjust
111111 = +6dB
111110 = +5dB
… (1.0 dB steps)
111001=0dB
…
000000=-57dB
Analogue Outputs
55 (37h)
15:0
0000h
Reserved
56 (38h)
15:8
00h
Reserved
7
MONOATTN
0
Attenuation control for bypass path (output of input
boost stage) to mono mixer input
0 = 0dB
1 = -10dB
Analogue Outputs
6
MONOMUTE
0
MONOOUT Mute Control
0=No mute
1=Output muted. During mute the mono output will
output VMID which can be used as a DC reference for
a headphone out.
Analogue Outputs
5:3
0
Reserved
2
AUX2MONO
0
Output of Auxiliary amplifier to mono mixer input:
0 = not selected
1 = selected
Analogue Outputs
1
BYP2MONO
0
Bypass path (output of input boost stage) to mono
mixer input
0 = non selected
1 = selected
Analogue Outputs



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