Q2686 Wavecom, Q2686 Datasheet - Page 66

• Manufacturer Part Number: Q2686
• Description: Wireless CPU
• Manufacturer: Wavecom

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See Chapter 3.3, “Electrical information for digital I/O” for Open drain, 2V8 and 1V8 voltage
characteristics and Reset state definition.
PCM-SYNC
T
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prior written agreement.
WM_PRJ_Q2686_PTS_001-007
T
PCM-OUT
T
T
T
T
PCM-CLK
T
T
sync_low +
T
PCM-IN
OUT-delay
SYNC-CLK
sync_high
sync_high
CLK-cycle
Signal
sync_low
Signal
IN-setup
IN-hold
PCM-SYNC to PCM-CLK time
number
Pin
77
79
80
78
PCM-SYNC high time
PCM-OUT delay time
confidential ©
PCM-SYNC low time
PCM-IN setup time
PCM-SYNC period
PCM-IN hold time
PCM-CLK period
Pin description of the PCM interface
Description
I/O
O
O
O
I
I/O type
AC characteristics
1V8
1V8
1V8
1V8
Reset state
Pull-down
Pull-down
Pull-up
Pull-up
Minimum
50
50
Q2686 Wireless CPU
Frame synchronization
1302
-154
Typ
125
93
32
Data output
Description
Data input
Data clock
Maximum Unit
8Khz
20
Interfaces
March 6, 2007
Ns
Ns
Ns
Ns
Ns
Page: 65 / 87
μs
μs
μs
®