CS4350_07 Datasheet, PDF (31/41 Pages) Cirrus Logic – 192 kHz Stereo DAC with Integrated PLL

8.3.3
CS4350
Invert Signal Polarity (INVERT_B) Bit 5
Function:
When set to 1, this bit inverts the signal polarity of channel B.
When set to 0 (default), this function is disabled.
This function is only available for Left Justified, Right Justified 16, and Right Justified 24 data formats.
8.3.4
ATAPI Channel Mixing and Muting (ATAPI[3:0]) Bits 3-0
Default = 1001 - AOUTA=aL, AOUTB=bR (Stereo)
Function:
The CS4350 implements the channel mixing functions of the ATAPI CD-ROM specification. Refer to
Table 4 and Figure 22 for additional information.
Left Channel
Audio Data
A Channel
Volume
Control
MUTE _AoutA
Σ
Σ
Right Channel
Audio Data
B Channel
Volume
Control
Figure 22. ATAPI Block Diagram
ATAPI_A1 ATAPI_A0 ATAPI_B1 ATAPI_B0
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
AOUTA
MUTE
MUTE
MUTE
MUTE
aR
aR
aR
aR
Table 4. ATAPI Decode
MUTE _AoutB
AOUTB
MUTE
bR
bL
b[(L+R)/2]
MUTE
bR
bL
b[(L+R)/2]
DS691F1
31