TEA1062AN-D16-T UTC [Unisonic Technologies], TEA1062AN-D16-T Datasheet - Page 12

• Manufacturer Part Number: TEA1062AN-D16-T
• Description: LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE
• Manufacturer: UTC [Unisonic Technologies]

TEA1062N/TEA1062AN
should be HIGH(UTC TEA1062N is LOW) or open-circuit, for measuring the DTMF input MUTE should be
LOW(UTC TEA1062N is HIGH) .Inputs not under test should be open-circuit.
Fig.15 Typical application of the UTC TEA1062AN, 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 R
Voltage gain is defined as: G
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
Telephone
Line
100μF
BAS11
C1
(x2)
Fig.16
BZW14
R10
130Ω
(x2)
Fig.14 Test circuit for defining voltage gain of the receiving amplifier.
10 μF
Vi
Typical applications of the UTC TEA1062N/TEA1062AN (simplified)
The dashed lines show an optional flash (register recall by timed loop break).
BZX79
C12
V
Voltage gain is defined as: G
=20*log(|V
10
11
12
7
6
R2
132kΩ
R3
3.92kΩ
C7
1nF
C2
Zbal
MIC+
IR
MIC-
MUTE
VEE
DTMF
9
4.7 μF
R8
390Ω
C3
VCC
REG AGC STAB
O
100nF
13
R1=620Ω
C5
R4
/V
R9
20Ω
14
I
R6
|). For measuring the gain from MIC+ and MIC- the MUTE input
C4
100pF
10
15
4
5
7
6
QR
SLPE
MIC+
IR
GAR
MIC-
LN
16
8
3.6kΩ
100pF
1
R5
1nF
C6
C8
GAS1
GAS2
SLPE
16
GAS1
GAR
20Ω
1
2
QR
LN
R9
R
UTC TEA1062AN
R7
VA
UTC TEAI062N
4
5
2
(R16.R14)
3
V
GAS2
4.7 μF
=20*log(|V
VA
C3
3
(REG to SLPE).
100kΩ
620Ω
R1
R4
REG
14
68kΩ
R7
R6
AGC
LINEAR INTEGRATED CIRCUIT
100pF
C2
O
15
C4
13
3.6kΩ
/V
V
R5
100pF
CC
C7 1nF
I
STAB V
Vo
C6
Z
|).
L
C8 1nF
100 μF
8
DTMF
MUTE
EE
9
11
12
600Ω
100 μF
C1
10 TO 140 mA
control circuits
From dial and
QW-R108-011.C
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