GL6962 Datasheet, PDF (1/12 Pages) Hynix Semiconductor – Low Voltage Universal Speech Network

GL6962/GL6962A
GL6962/GL6962A
Low Voltage Universal Speech Network
Description
The GL6962 and GL6962A are bipolar integrated
circuits that perform all speech and line interface
functions required in fully electronic telephone sets.
They perform electronic switching between dialing
and speech. The ICs operate at line voltage down
to 1.6V DC (with reduced performance) to
facilitate the use of more telephone sets connected
in parallel.
Features
Low DC line voltage: operates down to 1.6V
(excluding polarity guard)
Voltage regulator with adjustable static
resistance
Provides a supply for external circuits
Symmetrical high-impedance inputs (64k¥ Ø) for
dynamic, magnetic or piezo-electric microphones
Asymmetrical high-impedance inputs(32k¥ Ø)
for electric microphones
DTMF signal input with confidence tone
MUTE input for pulse or DTMF dialing
(GL6962)
MUTE input for pulse or DTMF dialing
(GL6962A)
Receiving amplifier for dynamic, magnetic or
piezo-electric earpieces.
Large gain setting ranges on microphone and
earpiece amplifiers.
Line loss compensation (line current dependent)
for microphone and earpiece amplifiers
Gain control curve adaptable to exchange supply
DC line voltage adjustment facility
Packaged in 16 DIP/SOP.
PIN Configuration
(TOP View)
LN 1
TGA1 2
TGA2 3
QR 4
RGA 5
MIC- 6
MIC+ 7
Iref 8
GL6962
16 SLPE
15 AGC
14 REG
13 VCC
12 ^MUTE
11 DTMF
10 IR
9 V_EE
* Pin 12 is active LOW(MUTE) for GL6962A
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