Atmel AT89C5132 Manual Do Utilizador
29
4173ES–USB–09/07
AT89C5132
6.3.6
Audio Interface
6.3.6.1
Definition of Symbols
Table 16. Audio Interface Timing Symbol Definitions
6.3.6.2
Timings
Table 17. Audio Interface AC timings
V
DD
= 2.7 to 3.3V, T
A
= -40 to +85
°
C, CL
≤
30pF
Note:
32-bit format with Fs = 48 kHz.
6.3.6.3
Waveforms
Figure 6-18. Audio Interface Waveforms
Signals
Conditions
C
Clock
H
High
O
Data Out
L
Low
S
Data Select
V
Valid
X
No Longer Valid
Symbol
Parameter
Min
Max
Unit
T
CHCH
Clock Period
325.5
(1)
ns
T
CHCX
Clock High Time
30
ns
T
CLCX
Clock Low Time
30
ns
T
CLCH
Clock Rise Time
10
ns
T
CHCL
Clock Fall Time
10
ns
T
CLSV
Clock Low to Select Valid
10
ns
T
CLOV
Clock Low to Data Valid
10
ns
DCLK
T
CHCH
T
CLCX
T
CHCX
T
CLCH
T
CHCL
DSEL
DDAT
Right
Left
T
CLSV
T
CLOV