User's Manual

User manual of 3G SEP EVDO module
Page 37
Parameter
Condition Min Typ Max Unit
T Clock period
I2S requirement: min T = 293
293 326 359 ns
t(hc) Clock high I2S requirement: min > 0.35T 120 ns
t(lc) Clock low I2S requirement: min > 0.35T 120 ns
t(dtr) Delay I2S requirement: max < 0.8T 250 ns
t(htr) Hold time I2S requirement: min > 0 100 ns
Figure 12:
I2S receiver timing diagram
Parameter
Condition Min Typ Max Unit
T Clock period
I2S requirement: min T = 293
293 326 359 ns
t(hc) Clock high I2S requirement: min < 0.35T = 103 100 - - ns
t(lc) Clock low I2S requirement: min < 0.35T = 103 100 - - ns
t(sr) Setup time I2S requirement: min < 0.2T = 59 40 - - ns
t(htr) Hold time I2S requirement: min < 0 0 - - ns
4.14.2 PCM Interface
4.14.2.1 Primary (short sync) PCM interface (2048 kHz clock)
Figure 13:
PCM_SYNC timing