w91031 Winbond Electronics Corp America, w91031 Datasheet - Page 28

• Manufacturer Part Number: w91031
• Description: Calling Line Identifier
• Manufacturer: Winbond Electronics Corp America

Notes:
1. The CPE designer may choose to set FSKE always high while the the CPE is on-hook and the FSK signal is expected.
2. TW/P & E/312 specifies that the AC and DC loads should be applied between 250 400 mS after the end of the ring burst.
3. TW/P & E/312 specifies that the AC and DC loads should be removed between 50 150 mS after the end of the FSK signal.
4. The W91031 may not be woken up at the first ring cycle after the FSK data had been processed.
The W91031 may also be placed in a sleep condition.
TE DC load
TE AC load
A/B Wires
RNGON
SLEEP
INTN
FSKE
FCDN
FDRN
DCLK
DATA
Figure 9-7. Input and Output Timing of CCA Caller Display Service Data Transmission
Line Reversal
Ring Burst
Note 1
A
250 - 400 mS
B
Note 2
Ch. Seizure
...101010...
C
...
...
- 28 -
Mark
D
50 - 150 mS
Message
Data
E
...
...
Preliminary W91031
Note 3
F
A = 200 - 450 mS
B >= 500 mS
C = 80 - 262 mS
D = 45 - 262 mS
E <= 2.5 sec (500 mS typical)
F >= 200 mS
Note 4
First Ring Cycle