WM8956 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
'WM8956' PDF : 80 Pages View PDF
Production Data
WM8956
REGISTER BIT
ADDRESS
R31 (1Fh) 8:0
R32 (20h) 8
Left Input
Signal
Path
7
6
5:4
3
2:0
R33 (21h) 8
Right Input
Signal
Path
7
6
5:4
3
2:0
R34 (22h) 8
Left Out
Mix
7
LABEL
LMN1
LMP3
LMP2
LMICBOOST[1:0]
LMIC2B
RMN1
RMP3
RMP2
RMICBOOST[1:0]
RMIC2B
LD2LO
LI2LO
DEFAULT
DESCRIPTION
REFER TO
000000000
1
0
0
00
0
000
1
0
0
00
0
000
0
0
Reserved
Connect LINPUT1 to inverting input of Left Input
PGA
0 = LINPUT1 not connected to PGA
1 = LINPUT1 connected to PGA
Connect LINPUT3 to non-inverting input of Left
Input PGA
0 = LINPUT3 not connected to PGA
1 = LINPUT3 connected to PGA (Constant input
impedance)
Connect LINPUT2 to non-inverting input of Left
Input PGA
0 = LINPUT2 not connected to PGA
1 = LINPUT2 connected to PGA (Constant input
impedance)
Left Channel Input PGA Boost Gain
00 = +0dB
01 = +13dB
10 = +20dB
11 = +29dB
Connect Left Input PGA to Left Input Boost Mixer
0 = Not connected
1 = Connected
Reserved
Connect RINPUT1 to inverting input of Right
Input PGA
0 = RINPUT1 not connected to PGA
1 = RINPUT1 connected to PGA
Connect RINPUT3 to non-inverting input of Right
Input PGA
0 = RINPUT3 not connected to PGA
1 = RINPUT3 connected to PGA (Constant input
impedance)
Connect RINPUT2 to non-inverting input of Right
Input PGA
0 = RINPUT2 not connected to PGA
1 = RINPUT2 connected to PGA (Constant input
impedance)
Right Channel Input PGA Boost Gain
00 = +0dB
01 = +13dB
10 = +20dB
11 = +29dB
Connect Right Input PGA to Right Input Boost
Mixer
0 = Not connected
1 = Connected
Reserved
Left DAC to Left Output Mixer
0 = Disable (Mute)
1 = Enable Path
LINPUT3 to Left Output Mixer
0 = Disable (Mute)
1 = Enable Path
Input Signal
Path
Input Signal
Path
Input Signal
Path
Input Signal
Path
Input Signal
Path
Input Signal
Path
Input Signal
Path
Input Signal
Path
Input Signal
Path
Input Signal
Path
Output Signal
Path
Output Signal
Path
w
PD, November 2011, Rev 4.1
67
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