PCM3793A
PCM3794A
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SLAS529A–JANUARY 2007–REVISED FEBRUARY 2007
Register 95
B15
0
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
3DP0
Register 95
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
SDAS
3DEN
RSV
3FL0
3DP3
3DP2
3DP1
IDX[6:0]: 101 1111b (5Fh): Register 95
SDAS: Source Select for Sound Effect (Tone Control, 3-D Sound, Notch Filter, Mono Mix)
Default value: 0
The PCM3793A/94A includes sound effect circuits (tone control, 3-D sound, notch filter, mono mix) which can be
used to filter either the digital input to the DAC or the digital output from the ADC. This bit selects the signal
source of the sound effect circuit.
SDAS = 0
SDAS = 1
DAC digital input (default)
ADC digital output
3DEN: 3-D Sound Effect Enable
Default value: 0
This bit is used for enabling the 3-D sound effect filter. This filter has two independently controlled parameters.
3DEN = 0
3DEN = 1
Disable (default)
Enable
3FL0: Filter Selection for 3-D Sound
Default value: 0
This bit is used for selecting from two types of filter, narrow and wide. These filters have a different 3-D
performance effect.
3FL0 = 0
3FL0 = 1
Narrow (default)
Wide
3DP[3:0]: Efficiency for 3-D Sound Effects
Default value: 0000
These bits are used for adjusting the 3-D sound efficiency. Higher percentages have greater efficiency.
3DP[3:0]
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
3D Sound Effect Efficiency
0% (default)
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1 0 1 1
:
Reserved
:
1 1 1 1
Reserved
56
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