w91031 Winbond Electronics Corp America, w91031 Datasheet - Page 9

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

Dual tone detected
Discharge
Charge
Switch
Switch
Tip/Ring
ALGR
ALGRC
ALGO
Figure 7-5. Guard Time Waveform of ALGR, ALGRC and ALGO Pins
Figure 7-4. Guard Time Circuit of Dual Tone Alert Signal Detection
ON
Comparator
t
DP
Charge/Discharge
Control Circuit
W91031
t
REC
Capacitor
t
GP
+
-
V
CPth
Alerting Signal
V
CPth
- 9 -
ON
Discharge
Charge
Switch
Switch
t
DA
Publication Release Date: August 2000
Preliminary W91031
t
ABS
V
t
GA
CPth
ALGR
ALGO
ALGRC
VDD
ON
VDD
R
C
Revision A1