CS4398CZZ View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
'CS4398CZZ' PDF : 46 Pages View PDF
7.3.1
CS4398
Channel B Volume = Channel A Volume (VOLB=A) Bit 7
Function:
When set to 0 (default), the AOUTA and AOUTB volume levels are independently controlled by the A and
the B Channel Volume Control Bytes.
When set to 1, the volume on both AOUTA and AOUTB are determined by the A Channel Attenuation and
Volume Control Bytes, and the B Channel Bytes are ignored.
7.3.2
Invert Signal Polarity (Invert_A) Bit 6
Function:
When set to 1, this bit inverts the signal polarity of channel A.
When set to 0 (default), this function is disabled.
7.3.3
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.
7.3.4 ATAPI Channel Mixing and Muting (ATAPI4:0) Bits 4-0
Default = 01001 - AOUTA=aL, AOUTB=bR (Stereo)
Function:
The CS4398 implements the channel-mixing functions of the ATAPI CD-ROM specification. Refer to Ta-
ble and Figure 18 for additional information.
Left Channel
Audio Data
A Channel
Volume
Control
MUTE AoutA
Right Channel
Audio Data
DS568F1
Σ
Σ
B Channel
Volume
Control
Figure 18. ATAPI Block Diagram
MUTE AoutB
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