GL6965 Datasheet, PDF (1/23 Pages) Hynix Semiconductor – Telephone Speech Network with Dialer Interface

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.
Pin Configurations
V_L 1
TO1 ²
TO0 3
AC BIAS ₄
MFI 5
TPO 6
TPI 1 7
TPI 2 8
MUTE 9
GND 10
20 V_CC
19 RO 1
18 RO 2
17 BT 1
16 _RPO
15 RPI 1
14 RPI 2
13 REF
12 PADC
11 UP
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.
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