Datasheet

PCM3008
SLAS332 – APRIL 2001
11
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synchronization with digital audio system (continued)
Undefined Data
Undefined Data
Within 1/f
s
t
ADCDLY2
t
DACDLY2
Synchronous Asynchronous Synchronous
Normal Zero Normal
NormalNormal Last Data
State of
Synchronization
ADC
DOUT
DAC
V
O
SYMBOL
DEFINITION MIN TYP MAX UNIT
t
ADCDLY2
Delay time from synchronization 32/f
s
s
t
DACDLY2
Delay time from synchronization 32/f
s
s
Figure 6. ADC and DAC Output for Loss of Synchronization
Zero
t
ADCDLY1
t
DACDLY1
1024 SYSCK
t
DACDLY1
V
COM
(0.5 V
CC
)
SYSCK
PDAD
PDDA
ADC
DOUT
DAC
V
O
SYSCK Can be stopped during
PDAD
= LOW and PDDA = LOW.
SYMBOL
DEFINITION MIN TYP MAX UNIT
t
ADCDLY1
Initial delay time 2240/f
s
s
t
DACDLY1
Fade in, fade out time 2080/f
s
s
Figure 7. ADC and DAC Output for Power Down Control