W91031SG Nuvoton Technology Corporation of America, W91031SG Datasheet - Page 26

• Manufacturer Part Number: W91031SG
• Description: IC CALL LINE IDENT 24-SOIC
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W91031SG

• Function: Caller ID Device
• Interface: FSK
• Number Of Circuits: 1
• Voltage - Supply: 3 V ~ 5 V
• Current - Supply: 2.5mA
• Operating Temperature: 0°C ~ 75°C
• Mounting Type: Surface Mount
• Package / Case: *
• Includes: FSK Demodulator, Line Reversal Detector, Ring Detector
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -

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 W91031 may not be woken up at this ring signal after the FSK data has been processed.
The W91031 may also be placed in a sleep condition.
and the DTMF tones are in the same frequency band as the FSK signal.
TE DC load
TE AC load
A/B Wires
RNGON
SLEEP
INTN
ALGO
FSKE
FCDN
FDRN
DCLK
DATA
Figure 9-5. Input and Output Timing of BT Idle State (On-hook) Data Transmission
Line Reversal
< 120 uA
A
t
REC
Alert Signal
B
20 5 mS
t
ABS
C
Note 1
15 1 mS
Ch. Seizure
Current wetting pulse (Refer to SIN227)
...101010...
- 26 -
D
Zss (Refer to SIN227)
...
< 0.5 mA (optional)
...
Mark
E
Message
Data
F
...
...
Preliminary W91031
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