AT85C51SND3B1 Datasheet, PDF (253/263 Pages) ATMEL Corporation – Single-Chip Digital Audio Decoder - Encoder with USB 2.0 Interface

Audio DAC Interface
Definition of symbols
Timings
Waveforms
External Clock Interface
Definition of symbols
Table 272. Audio DAC Interface Timing Symbol Definitions
Signals
C
Clock
H
O
Data Out
L
S
Data Select
V
X
Conditions
High
Low
Valid
No Longer Valid
Table 273. Audio Interface AC timings
V_DD = 1.65 to 3.6 V; T_A = -40 to +85°C, CL ≤ 30pF
Symbol
Parameter
Min
T_CHCH
Clock Period
T_CHCX
Clock High Time
30
T_CLCX
Clock Low Time
30
T_CLCH
Clock Rise Time
T_CHCL
Clock Fall Time
T_CLSV
Clock Low to Select Valid
T_CLOV
Clock Low to Data Valid
Note: 1. 32-bit format with Fs= 48 KHz.
Max
325.5⁽¹⁾
Unit
ns
ns
ns
10
ns
10
ns
10
ns
10
ns
Figure 149. Audio Interface Waveforms
T_CHCX
T_CHCH
T_CLCX
DCLK
T_CHCL
T_CLCH
T_CLSV
DSEL
Right
Left
T_CLOV
DDAT
Table 274. External Clock Timing Symbol Definitions
Signals
C
Clock
H
L
X
Conditions
High
Low
No Longer Valid
16 AT85C51SND3Bx
7632A–MP3–03/06