AT8xC51SND2C
Audio Interface
Definition of symbols
Table 201. Audio Interface Timing Symbol Definitions
Signals
Conditions
High
C
O
S
Clock
H
L
Data Out
Data Select
Low
V
X
Valid
No Longer Valid
Timings
Table 202. Audio Interface AC timings
DD = 2.7 to 3.3 V, TA = -40 to +85°C, CL≤ 30pF
V
Symbol
Parameter
Clock Period
Min
Max
Unit
ns
TCHCH
325.5(1)
TCHCX
TCLCX
TCLCH
TCHCL
TCLSV
TCLOV
Clock High Time
30
30
ns
Clock Low Time
ns
Clock Rise Time
10
10
10
10
ns
Clock Fall Time
ns
Clock Low to Select Valid
Clock Low to Data Valid
ns
ns
Note:
1. 32-bit format with Fs= 48 KHz.
Waveforms
Figure 164. Audio Interface Waveforms
TCHCH
TCHCX
TCLCX
DCLK
TCHCL
TCLCH
TCLSV
DSEL
DDAT
Right
Left
TCLOV
225
4341D–MP3–04/05
ATMEL [ ATMEL ]
