Read Panasonic KX-TS2363CAW / KX-TS2363UAW Service Manual online
14
KX-TS2363CAW/KX-TS2363UAW
10 Miscellaneous
10.1. IC Block Diagram
10.1.1. Ringer IC (IC1)
Vcc 1
RSL 2
LFI 3
LFO 4
OUT
8
HFI
7
HFO
6
GND
5
LOW FREQ
OSC
OSC
HIGH FREQ
OSC
OSC
POWER SUPPLY
WITH
HYSTERISIS
AMP
Pin descriptions
1
2
3
4
5
6
7
8
Vcc
RSL
LFI
LFO
GND
HFO
HFI
OUT
Pin No. Pin name
Power supply pin
RSL pin
Low-frequency time
constant connector pin
GND pin
High-frequency time
constant connector pin
Output pin
This is the power supply pin for the lC. It is connected to the ( ) pin of the diode bridge.
This is used to change the operation initiation current when connected to the GND pin.
This is connected to the time constant that determines the oscillation frequency
on the warble.
on the warble.
This pin has the lowest potential on the lC. It is connected to the ( ) pin of the diode bridge.
This is connected to the time constant that determines the oscillation frequency
on the tone side (the audible frequency side).
on the tone side (the audible frequency side).
This is used to connect a piezoelectric buzzer, or to connect a dynamic speaker through a
transformer.
transformer.
Name
Function
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