SAA7712H Datasheet, PDF (34/44 Pages) NXP Semiconductors – Sound effects DSP

Philips Semiconductors
Sound effects DSP
15 I²S-BUS TIMING CHARACTERISTICS
Timing of the serial digital data inputs and outputs (see Fig.17).
SYMBOL
PARAMETER
T_cy
t_su(D)
t_h(D)
t_su(WS)
t_h(WS)
t_d(D)
t_d(WS)
bit clock cycle time
data set-up time (host)
data set-up time (I²S-bus)
data hold time (host)
data hold time (I²S-bus)
word select set-up time (I²S-bus)
word select hold time (I²S-bus)
data delay time (host)
word select delay time (host)
Preliminary specification
SAA7712H
MIN.
70
32
10
5
10
10
10
−
−
MAX.
−
−
−
−
−
−
−
20
15
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
handbook, full pagewidth
WS OUT
WS IN
BCK
DATA IN
right
tBCK(H)
tBCK(L)
tr
tf
th( _WS)
td(D)
tsu(WS)
Tcy
LSB
MSB
left
td(WS)
tsu(D)
th(D)
DATA OUT
MGS220
Fig.17 Timing definitions of the serial digital inputs and outputs.
1999 Aug 05
34