GL6965
GL6965
Telephone Speech Network with Dialer Interface
Description
The GL6965 is a bipolar integrated circuit for
use in electronic telephones.
The GL6965 has low operating voltage, it pro-
vides an excellent branch performance.
It has line voltage increasing circuit by the
exter-nal terminal. Transmitting and receiving
gains automatically vary according to the line
current.
V
L
TO1
TO0
AC BIAS
MFI
TPO
TPI 1
TPI 2
MUTE
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11
V
CC
RO 1
RO 2
BT 1
RPO
RPI 1
RPI 2
REF
PADC
UP
Pin Configurations
GND 10
Features
• Externally adjustable transmitting,
receiving and Sidetone gains.
• Switching between transmitting output
and DTMF output is possible.
• Direct interface with light and compact
ceramic transmitter-receiver is possible.
• Receiver follow impedance type can
also be used.
• Gain is automatically controlled accor-
ding to the line current (Auto-PAD
function).
• The line voltage can be increased by
the external terminal (Up function).
• PKG is 20 pin DIP.
1
HYNIX [ HYNIX SEMICONDUCTOR ]
