TEA1062A 查看數據表（PDF） - Contek Microelectronics
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TEA1062A Datasheet PDF : 13 Pages
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TEA1062/1062A LINEARINTEGRATED CIRCUIT
R10
130W
BAS11
(x2)
Telephone
Line
BZW14
(x2)
BZX79
C12
R1
620W
R2
132kW
C5
100nF
1
10
LN
IR
13
VCC
C1
100 mF
C2
R3
3.92kW
R4
C4 4 QR
100pF
5 GAR
Contek TEAI062/A
DTMF 11
C7
7 MIC+
1nF
6
MIC-
12
MUTE
R8
390W
Zbal
R9
20W
SLPE GAS1 GAS2
16
2
3
C6
100pF R7
REG AGC STAB VEE
14
15
89
RVA(R16.R14)
C8
C3
R6
R5
3.6kW
1nF
4.7 mF
From dial and
control circuits
Fig.15 Typical application of the Contek 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
Contek 1062A
MUTE
VEE
VDD
DTMF
dialling
circuit
M1
VSS DP/FL
BSN254A
Fig.16 Typical applications of the Contek TEA1062/1062A (simplified)
The dashed lines show an optional flash
( register recall by timed loop break).
Contek Microelectronics Co.,Ltd.
13
CONTEK
http://www.contek-ic.com E-mail:sales@contek-ic.com
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