AG8889
CALL WAITING DECODER
APPLICATION CIRCUIT 2
In some application, the call waiting decoder is always powered on , the PWD pin (pin 6) can not be directly
connected to the ground, the users have to use the following application. (pin6 is connected with a capacitor to
VDD and connected with a resistor to the ground).
5V
5V
VD
D
3
14
OPO
0.1u
0.01u
250V
470k
47p
1 TIP
430k
39k
39k
TIP
5V
RING
2
470p
20k
RING
13
6
DO
PWD
62k
51k
0.01u
250V
430k
C1
Y1
9
8
OSCI
4 VREF
33p
OSCO
3.58MHz
C2
GN
33p
7
D
Note :
Y1
KYOCERA
KBR-3.58MSB202
C1
C2
33p
33p
KBR-3.58MSB202 tolerrance :
-0.10% ~+0.15%
8-bit
MCU
* This specification are subject to be changed without notice.
6
8.8.2000
ELAN [ ELAN MICROELECTRONICS CORP ]
