WM8978_06 Wolfson Microelectronics Ltd., WM8978_06 Datasheet - Page 62

• Manufacturer Part Number: WM8978_06
• Description: Stereo Codec With Speaker Driver
• Manufacturer: Wolfson Microelectronics Ltd.

WM8978
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Table 41 Left and Right Output Mixer Control
HEADPHONE OUTPUTS (LOUT1 AND ROUT1)
Figure 29 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 31.
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
DESCRIPTION
headphone load, either
PP Rev 3.0 May 2006
Pre-Production
62