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UTCTEA1062N Datasheet

  • UTCTEA1062N

  • LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTE...

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  • 13頁

  • UTC-IC

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UTC TEA1062N / TEA1062AN
LINEAR INTEGRATED CIRCUIT
LOW VOLTAGE TELEPHONE
TRANSMISSION CIRCUIT WITH
DIALLER INTERFACE
DESCRIPTION
The UTC TEA1062N / TEA1062AN is a bipolar
integrated circuit performing all speech and line
interface function, required in the fully electronic
telephone
sets. It performs electronic switching
between dialing speech. The circuit is able to
operate down to D.C. line voltage of 1.6V (with
reduced performance) to facilitate the use of more
telephone sets in parallel.
SOP-16
DIP-16
FEATURES
* Low d.c. line voltage; operates down to 1.6V
(excluding polarity guard).
*Voltage regulator with adjustment static resistance.
*Provides supply with limited current for external
circuitry.
*Symmetrical high-impedance inputs (64k鈩? for
dynamic, magnetic or piezoelectric microphones.
*Asymmetrical high-impedance inputs (32k鈩? for
electret microphones.
*DTMF signal input with confidence tone.
*Mute input for pulse or DTMF dialing.
*Receivering amplifier for several types of earphones.
*Large amplification setting range on microphone
and earpiece amplifiers.
*Line loss compensation facility , line current
depedant (microphone and earpiece amplifiers).
*Gain control adaptable to exchange supply.
*Possibility to adjust the d.c. line voltage.
QUICK REFERENCE DATA
Line voltage at I
line
=15mA
Line current operating range[pin1]
normal operation
with reduced performance
Internal supply current
Supply current for peripherials
at I
line
=15 mA MUTE input LOW(1062 is HIGH)
VCC>2.2V
VCC>2.8V
Voltage amplification range
microphone amplifier
receiving amplififer
Line loss compansation
Amplification control range
Exchange supply voltage range
Exchange feeding bridge resistance range
Operating ambient temperature range
V
LN
I
line
I
line
I
CC
typ.
3.8 V
11 to 140 mA
1 to 11 mA
typ. 1mA
I
p
I
p
A
VD
A
VD
A
VD
V
exch
R
exch
T
amb
typ.
typ.
1.8mA
0.7mA
44 to 52 dB
20 to 39 dB
typ. 6 dB
36 to 60V
400 to 1000惟
-25 to +75擄C
UTC
UNISONIC TECHNOLOGIES
CO., LTD.
1
QW-R108-011,A

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