WM8978 Wolfson Microelectronics Ltd., WM8978 Datasheet - Page 52

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WM8978

Manufacturer Part Number
WM8978
Description
The WM8978 is a low power, high quality stereo codec designed for portable applications such as Digital still camera or Digital Camcorde
Manufacturer
Wolfson Microelectronics Ltd.
Datasheet

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WM8978
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Table 34 Left and Right Output Mixer Control
HEADPHONE OUTPUTS (LOUT1 AND ROUT1)
Figure 24 Headphone Outputs LOUT1 and ROUT1
The headphone outputs, LOUT1 and ROUT1 can drive a 16
through DC blocking capacitors, or DC coupled without any capacitor. Each headphone output has
an analogue volume control PGA with a gain range of -57dB to +6dB as shown in Figure 26.
R3
Power
management
3
REGISTER
ADDRESS
5
8:6
2
3
BIT
AUXR2RMIX
AUXRMIXVOL
LMIXEN
RMIXEN
LABEL
DEFAULT
000
0
0
0
output mixer:
0 = not selected
1 = selected
Aux right channel input to right mixer
volume control:
000 = -15dB
001 = -12dB
101 = 0dB
110 = +3dB
111 = +6dB
Left output channel mixer enable:
0 = disabled
1= enabled
Right output channel mixer enable:
0 = disabled
1 = enabled
Right Auxiliary input to right channel
or 32
PTD Rev 2.6 November 2005
DESCRIPTION
Preliminary Technical Data
headphone load, either
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