Sierra Wireless Q2687 Manuel D’Utilisation
Wireless CPU Quik Q2687
Interfaces
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WA_ENG_Q2687_PTS_001-002
September 11, 2006
T
OUTdelay
T
SYNC-CLK
T
CLK-cycle
T
IN-hold
T
IN-setup
PCM-SYNC
PCM-CLK
PCM-IN
PCM-OUT
SLOT 0 bit 15
SLOT 0 bit 14
SLOT 0 bit 13
SLOT 5 bit 0
SLOT 0 bit 15
SLOT 0 bit 14
SLOT 0 bit 13
SLOT 5 bit 0
Figure 14: PCM sampling waveform
AC characteristics
Signal
Description
Minimum
Typ Maximum Unit
T
sync_low +
T
sync_high
PCM-SYNC period
125
µs
T
sync_low
PCM-SYNC low time
93
µs
T
sync_high
PCM-SYNC high time
32
µs
T
SYNC-CLK
PCM-SYNC to PCM-CLK time
-154
Ns
T
CLK-cycle
PCM-CLK
period
1302
Ns
T
IN-setup
PCM-IN setup time
50
Ns
T
IN-hold
PCM-IN hold time
50
Ns
T
OUT-delay
PCM-OUT
delay
time
20 Ns