National CP3BT26 User Manual
251
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CP3
BT26
30.10
ADVANCED AUDIO INTERFACE (AAI) TIMING
Figure 116.
Receive Timing, Short Frame Sync
Table 87
Advanced Audio Interface (AAI) Signals
Symbol Figure
Description
Reference
Min (ns)
Max (ns)
AAI Input Signals
t
RDS
116,
Receive Data Setup Time
Before Falling Edge (FE)
on SRCLK
on SRCLK
20
-
t
RDH
116,
Receive Data Hold Time
After FE on SRCLK
20
-
t
FSS
Frame Sync Setup Time
Before Rising Edge (RE)
on SRCLK
on SRCLK
20
-
t
FSH
Frame Sync Hold Time
After RE on SRCLK
20
-
AAI Output Signals
t
CP
Receive/Transmit Clock Period
RE on SRCLK/SCK to RE
on SRCLK/SCK
on SRCLK/SCK
976.6
-
t
CL
Receive/Transmit Low Time
FE on SRCLK/SCK to RE
on SRCLK/SCK
on SRCLK/SCK
488.3
-
t
CH
Receive/Transmit High Time
RE on SRCLK/SCK to FE
on SRCLK/SCK
on SRCLK/SCK
488.3
-
t
FSVH
116,
Frame Sync Valid High
RE on SRCLK/SCK to RE
on SRFS/SFS
on SRFS/SFS
-
20
t
FSVL
116,
Frame Sync Valid Low
RE on SRCLK/SCK to FE
on SRFS/SFS
on SRFS/SFS
-
20
t
TDV
117,
Transmit Data Valid
RE on SCK to STD Valid
-
20
0
t
CP
t
CH
SRD
SRCLK
t
CL
SRFS
DS116
1
0
1
2
t
FSVH
t
FSVL
t
RDH
t
RDS