PCM3793A
PCM3794A
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SLAS529A–JANUARY 2007–REVISED FEBRUARY 2007
Register 74
B15
0
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
PCOM
Register 74
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RSV
CMS2
CMS1
CMS0
HPS1
HPS0
SPKS
IDX[6:0]: 100 1010b (4Ah): Register 74
CMS[2:0]: Output Selection for HPC (Headphone COM/Monaural Output)
Default value: 000
The HPCOM/MONO output can be selected from several input analog sources, including inverted HPOR output,
inverted HPOL output, and monaural output.
CMS[2:0]
0 0 0
HPCOM/MONO Output Selection
Common voltage (0.5 VCC) output for capless mode (default)
Monaural output
0 0 1
0 1 0
Inverted HPOL output
1 0 0
Inverted HPOR output
Others
Reserved
HPS[1:0]: Line or Headphone Output Configuration
Default value: 00
HPOL/LOL and HPOR/LOR can be configured selected as follows.
HPS[1:0]
0 0
Line or Headphone Output Configuration
Stereo output (default)
0 1
Single monaural output
Differential monaural output
Reserved
1 0
1 1
SPKS: Speaker Output Configuration
Default value: 00
SPOLP/SPOLN and SPORP/SPORN can be configured as follows.
SPKS = 0
SPKS = 1
Stereo output (default)
Monaural output
PCOM: Power Up/Down Control for VCOM
Default value: 0
This bit is used to control power up/down for VCOM
.
PCOM = 0
PCOM = 1
Power down (default)
Power up
38
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