wm8940gefl-v Wolfson Microelectronics plc, wm8940gefl-v Datasheet - Page 79
wm8940gefl-v
Manufacturer Part Number
wm8940gefl-v
Description
Mono Codec With Speaker Driver
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8940GEFL-V.pdf
(87 pages)
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Production Data
54 (36h)
55 (37h)
56 (38h)
REGISTER
ADDRESS
15:9
8
7
6
5:0
15:0
15:8
7
6
5:3
2
1
0
BIT
SPKATTN
SPKZC
SPKMUTE
SPKVOL
MONOATTN
MONOMUTE
AUX2MONO
BYP2MONO
DAC2MONO
LABEL
111001
0
0
0
0
00h
0
0
1
0000h
00h
0
0
DEFAULT
Reserved
Attenuation control for bypass path (output of input
boost stage) to speaker mixer input
0 = 0dB
1 = -10dB
Speaker Volume control zero cross enable:
1 = Change gain on zero cross only
0 = Change gain immediately
Speaker output mute enable
0=Speaker output enabled
1=Speaker output muted (VMIDOP)
Speaker Volume Adjust
111111 = +6dB
111110 = +5dB
… (1.0 dB steps)
111001=0dB
…
000000=-57dB
Reserved
Reserved
Attenuation control for bypass path (output of input
boost stage) to mono mixer input
0 = 0dB
1 = -10dB
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.
Reserved
Output of Auxiliary amplifier to mono mixer input:
0 = not selected
1 = selected
Bypass path (output of input boost stage) to mono
mixer input
0 = non selected
1 = selected
Output of DAC to mono mixer input
0 = not selected
1 = selected
DESCRIPTION
PD, Rev 4.2, April 2008
Analogue Outputs
Analogue Outputs
Analogue Outputs
Analogue Outputs
Analogue Outputs
Analogue Outputs
Analogue Outputs
Analogue Outputs
Analogue Outputs
REFER TO
WM8940
79
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