User Manual

CS4953xx Data Sheet
32-bit Audio Decoder DSP Family
DS705F2 25
Figure 14. Digital Audio Output Timing, Slave Mode
5.18 Switching Characteristics — SDRAM Interface
Refer to Figure 15 through Figure 18.
(SD_CLKOUT = SD_CLKIN)
Parameter Symbol Min Typical Max Unit
SD_CLKIN high time
t
sdclkh
2.3 — — ns
SD_CLKIN low time
t
sdclkl
2.3 — — ns
SD_CLKOUT rise/fall time
t
sdclkrf
——1ns
SD_CLKOUT Frequency
——150—MHz
SD_CLKOUT duty cycle
—45 —55%
SD_CLKOUT rising edge to signal valid
t
sdcmdv
——3.8ns
Signal hold from SD_CLKOUT rising edge
t
sdcmdh
—1.1—ns
SD_CLKOUT rising edge to SD_DQMn valid
t
sddqv
—3.8—ns
SD_DQMn hold from SD_CLKOUT rising edge
t
sddqh
1.38 — — ns
SD_DATA valid setup to SD_CLKIN rising edge
t
sddsu
1.3 — — ns
SD_DATA valid hold to SD_CLKIN rising edge
t
sddh
2.1 — — ns
SD_CLKOUT rising edge to ADDRn valid
t
sdav
—3.8—ns
DAO_SCLK
DAO_LRCLK
DAO_Dx
t
daoslrts
t
daosclk
DAO_SCLK
DAO_LRCLK
t
daosstlr
t
daosdv
t
daosclk
DAO_Dx