w91030b Winbond Electronics Corp America, w91030b Datasheet - Page 26

• Manufacturer Part Number: w91030b
• Description: Calling Line Identifier
• Manufacturer: Winbond Electronics Corp America

Notes:
1. SIN227 specifies that the AC and DC loads should be applied at 20 5 mS after the end of the dual tone alert signal.
2. SIN227 specifies that the AC and DC loads should be removed between 50 150 mS after the end of the FSK signal.
3. The FSKE pin should be set low to disable the FSK demodulator when FSK is not expected. The tone alerting signal speech
4. The W91030B may not be woken up at this ring signal after the FSK data has been processed.
The W91030B may also be placed in a sleep condition.
and the DTMF tones are in the same frequency band as the FSK signal. If the FSKE pin can not controlled by microcontroller, the
FSKE pin must always placed in high state and the microcontroller must give up the FSK decoded data when the FSK signal is
not expected.
TE DC load
TE AC load
A/B Wires
RNGON
SLEEP
INTN
ALGO
FSKE
FCDN
FDRN
DCLK
DATA
Line Reversal
Figure 9-5. Input and Output Timing of BT Idle State (On-hook) Data Transmission
< 120 uA
A
t
REC
Alert Signal
B
20 5 ms
t
ABS
C
Note 1
15 1 ms
Ch. Seizure Mark
Current wetting pulse (Refer to SIN227)
...101010...
D
Zss (Refer to SIN227)
...
< 0.5 mA (optional)
...
- 26 -
E
Message
Data
Preliminary W91030B
F
...
...
G
Note 2
Note 3
A >= 100 ms
B = 88 - 110 ms
C >= 45 ms (up to 5 sec)
D = 80 - 262 ms
E = 45 - 75 ms
F <= 2.5 sec (500 ms typical)
G >= 200 ms
50 - 150 ms
Ring
Note 4