AT89C5132
23.3.6
Audio Interface
23.3.6.1
Definition of Symbols
Table 118. Audio Interface Timing Symbol Definitions
Signals
Clock
Conditions
High
C
O
S
H
L
Data Out
Low
Data Select
V
X
Valid
No Longer Valid
23.3.6.2
Timings
Table 119. Audio Interface AC timings
DD = 2.7 to 3.3V, TA = -40 to +85°C, CL ≤ 30pF
V
Symbol
Parameter
Min
Max
Unit
ns
TCHCH
TCHCX
TCLCX
TCLCH
TCHCL
TCLSV
Clock Period
325.5(1)
Clock High Time
Clock Low Time
Clock Rise Time
Clock Fall Time
30
30
ns
ns
10
10
10
10
ns
ns
Clock Low to Select Valid
Clock Low to Data Valid
ns
TCLOV
Note:
ns
32-bit format with Fs = 48 kHz.
23.3.6.3
Waveforms
Figure 23-18. Audio Interface Waveforms
TCHCH
TCHCX
TCLCX
DCLK
TCHCL
TCLCH
TCLSV
DSEL
DDAT
Right
Left
TCLOV
169
4173E–USB–09/07
ATMEL [ ATMEL ]
