CS4398-CZZR Cirrus Logic Inc, CS4398-CZZR Datasheet - Page 31

• Manufacturer Part Number: CS4398-CZZR
• Description: IC,D/A CONVERTER,DUAL,24-BIT,TSSOP,28PIN
• Manufacturer: Cirrus Logic Inc

DS568F1
7.3.1
7.3.2
7.3.3
7.3.4
Right Channel
Left Channel
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.
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.
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.
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.
Audio Data
Audio Data
Σ
Figure 18. ATAPI Block Diagram
A Channel
B Channel
Volume
Volume
Control
Control
Σ
MUTE
MUTE
AoutA
AoutB
CS4398
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