CS4922
SWITCHING CHARACTERISTICS - AUXILIARY DIGITAL AUDIO PORT
Parameter
Input Sample Rate
AUXCLK Period
(Note 16)
(Note 17)
Symbol
Fs
tsclk
Min
16
-
Typ
-
1/(32Fs)
1/(64Fs)
1/(128Fs)
-
-
-
-
Max
48
-
Units
kHz
ns
AUXCLK to AUXLR valid
AUXCLK to AUXOUT data valid
AUXIN data setup time to AUXCLK
AUXIN data hold time from AUXCLK
tlrun
tdoun
tdisu
tdiho
0
0
50
3
25
25
-
-
ns
ns
ns
Notes: 16. Fs determined by clock input rate and configuration of on-chip PLL.
17. AUXCLK frequency selectable @ 32, 64, or 128 Fs via AUXCN register bits 1:0.
Fs
T
sclk
AUXCLK
T
lrun
AUXLR
T
doun
AUXOUT
T
disu
AUXIN
T
diho
Figure 5. Auxiliary Audio Port Timing
13
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