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UTCTEA1062A View Datasheet(PDF) - Unisonic Technologies

Part NameDescriptionManufacturer
UTCTEA1062A LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE UTC
Unisonic Technologies UTC
UTCTEA1062A Datasheet PDF : 13 Pages
First Prev 11 12 13
UTCTEA1062/1062A LINEARINTEGRATEDCIRCUIT
R10
130
BAS11
(x2)
Telephone
Line
BZW14
(x2)
BZX79
C12
R1
620
R2
132k
C5
100nF
1
10
LN
IR
13
VCC
C1
100 µF
C2
R3
3.92k
R4
C4 4 QR
100pF
5 GAR
UTC TEAI062/A
DTMF 11
C7
7 MIC+
1nF
6
MIC-
12
MUTE
R8
390
Zbal
R9
20
SLPE GAS1 GAS2
16
2
3
C6
100pF R7
REG AGC STAB VEE
14
15
89
RVA(R16.R14)
C8
C3
R6
R5
3.6k
1nF
4.7 µF
From dial and
control circuits
Fig.15 Typical application of the UTC TEA1062A ,shown here with a piezoelectric earpiece and DTMF dialling. The
bridge to the left ,the Zener diode and R10 limit the current into the circuit and the voltage across the circuit during line
transients.Pulse dialling or register recall required a different protection arrangement.
The DC line voltage can be set to a higher value by resistor RVA(REG to SLPE).
CARDLE
CONTRAT
TELEPHONE
LINE
LN VCC
DTMF
UTC1062A
MUTE
VEE
VDD
DTMF
dialling
circuit
M1
VSS DP/FL
BSN254A
Fig.16 Typical applications of the UTC TEA1062/1062A (simplified)
The dashed lines show an optional flash ( register recall by timed loop break).
UTC UNISONIC TECHNOLOGIES CO., LTD. 13
QW-R108-001,A
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