CS4385(2004) View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS4385
(Rev.:2004)

114 dB, 192 kHz 8-Channel D/A Converter

Cirrus Logic 

CS4385

5.10 Mixing Control (address 0Ah, 0Dh, 10h, 13h)

7

Reserved

0

6

Px_DEM1

0

5

Px_DEM0

1

4

PxATAPI4

0

3

PxATAPI3

1

2

PxATAPI2

0

1

PxATAPI1

0

0

PxATAPI0

1

5.10.1 DE-EMPHASIS CONTROL (PX_DEM1:0)

Default = 00

00 - Disabled

01 - 44.1 kHz

10 - 48 kHz

11 - 32 kHz

Function:

Selects the appropriate digital filter to maintain the standard 15 µs/50 µs digital de-emphasis filter re-

sponse at 32, 44.1 or 48 kHz sample rates. (see Figure 20)

De-emphasis is only available in Single Speed Mode.

5.10.2 ATAPI CHANNEL MIXING AND MUTING (ATAPI)

Default = 01001 - AOUTAx=aL, AOUTBx=bR (Stereo)

Function:

The implements the channel mixing functions of the ATAPI CD-ROM specification. The ATAPI functions

are applied per A-B pair. Refer to Table 14 and Figure 21 for additional information.

ATAPI4

0

0

0

0

0

0

0

0

0

0

0

0

ATAPI3

0

0

0

0

0

0

0

0

1

1

1

1

ATAPI2

0

0

0

0

1

1

1

1

0

0

0

0

ATAPI1

0

0

1

1

0

0

1

1

0

0

1

1

ATAPI0

0

1

0

1

0

1

0

1

0

1

0

1

AOUTAx

MUTE

MUTE

MUTE

MUTE

aR

aR

aR

aR

aL

aL

aL

aL

Table 9. ATAPI Decode

AOUTBx

MUTE

bR

bL

b[(L+R)/2]

MUTE

bR

bL

b[(L+R)/2]

MUTE

bR

bL

b[(L+R)/2]

46

DS671A1

Share Link: