DS619F1
41
CS4364
Selects the appropriate digital filter to maintain the standard 15
s/50 s digital de-emphasis filter re-
sponse at 32, 44.1 or 48 kHz sample rates. (Figure 16 on page 24)
De-emphasis is only available in Single-Speed Mode.
6.10.2
ATAPI Channel Mixing and Muting (ATAPI)
Default = 01001 - AOUTAx=aL, AOUTBx=bR (Stereo)
Function:
The CS4364 implements the channel mixing functions of the ATAPI CD-ROM specification. The ATAPI
functions are applied per A-B pair. Refer to Table 9 and Figure 17 for additional information.
ATAPI4
ATAPI3
ATAPI2
ATAPI1
ATAPI0
AOUTAx
AOUTBx
0
MUTE
0
000
1
MUTE
bR
0
001
0
MUTE
bL
0
001
1
MUTE
b[(L+R)/2]
0
010
0
aR
MUTE
0
010
1
aR
bR
0
011
0
aR
bL
0
011
1
aR
b[(L+R)/2]
0
100
0
aL
MUTE
0
100
1
aL
bR
0
101
0
aL
bL
0
101
1
aL
b[(L+R)/2]
0
1
0
a[(L+R)/2]
MUTE
0
110
1
a[(L+R)/2]
bR
0
111
0
a[(L+R)/2]
bL
0
1
a[(L+R)/2]
b[(L+R)/2]
1
0
MUTE
1
000
1
MUTE
bR
1
001
0
MUTE
bL
1
0
1
MUTE
[(bL+aR)/2]
1
010
0
aR
MUTE
1
010
1
aR
bR
1
011
0
aR
bL
1
0
1
aR
[(aL+bR)/2]
1
100
0
aL
MUTE
1
100
1
aL
bR
1
101
0
aL
bL
1
0
1
aL
[(aL+bR)/2]
1
0
[(aL+bR)/2]
MUTE
1
0
1
[(aL+bR)/2]
bR
1
0
[(bL+aR)/2]
bL
1
[(aL+bR)/2]
Table 9. ATAPI Decode
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