AK2305 Datasheet, PDF (37/43 Pages) Asahi Kasei Microsystems – Dual PCM CODEC for ISDN TERMINAL ADAPTER

ASAHI KASEI
Serial Interface Timing
Parameter
SCLK Frequency
SCLK Pulse Width High
SCLK Pulse Width Low
CS Pulse Width Low
Hold Time: SCLK High to CS Low
Setup Time: CS Low to SCLK High
Rising Time: CS ,SCLK
Falling Time: CS ,SCLK
WRITE
Setup Time: DATA to SCLK High
Hold Time: SCLK High to DATA
Hold Time: SCLK Low to CS High
READ
Delay Time: SCLK Low to DATA pin drive
Delay Time: SCLK Low to DATA valid
Delay Time: SCLK Low to DATA High-Z
Delay Time: CS High to DATA High-Z
CS Pulse Width High
[AK2305]
Symbol Min Typ Max Unit Ref fig
1/t_PSCLK
4 MHz
t_{W SH}
40
ns
t_{W SL}
40
ns
t_WCL
14
t_HCS
80
SCLK
Fig.6
ns
t_SCS
40
ns
t_R
100 ns
t_F
100 ns
t_SDC
40
t_HDC
40
t_HCS2
0
ns
ns Fig.6
ns
t_DVD
0
t_DDD
t_DZSD
0
t_DZCD
0
t_WCH
40
ns
Fig.7
60 ns
60 ns
60 ns Fig.8
ns
C0029-E-02
37
1999/8