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transmission. TEA1062T Datasheet |
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INTEGRATED CIRCUITS
DATA SHEET
TEA1062; TEA1062A
Low voltage transmission circuits
with dialler interface
Product specification
Supersedes data of 1996 Dec 04
File under Integrated Circuits, IC03
1997 Sep 03
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Philips Semiconductors
Low voltage transmission circuits with
dialler interface
Product specification
TEA1062; TEA1062A
FEATURES
• Low DC line voltage; operates down to 1.6 V (excluding
polarity guard)
• Voltage regulator with adjustable static resistance
• Provides a supply for external circuits
• Symmetrical high-impedance inputs (64 kΩ) for
dynamic, magnetic or piezoelectric microphones
• Asymmetrical high-impedance input (32 kΩ) for electret
microphones
• DTMF signal input with confidence tone
• Mute input for pulse or DTMF dialling
– TEA1062: active HIGH (MUTE)
– TEA1062A: active LOW (MUTE)
• Receiving amplifier for dynamic, magnetic or
piezoelectric 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.
GENERAL DESCRIPTION
The TEA1062 and TEA1062A are integrated circuits that
perform all speech and line interface functions required in
fully electronic telephone sets. They perform electronic
switching between dialling and speech. The ICs operate at
line voltage down to 1.6 V DC (with reduced performance)
to facilitate the use of more telephone sets connected in
parallel.
All statements and values refer to all versions unless
otherwise specified.
QUICK REFERENCE DATA
SYMBOL
VLN
Iline
ICC
VCC
PARAMETER
line voltage
operating line current
normal operation
with reduced performance
internal supply current
supply voltage for peripherals
TEA1062
TEA1062A
Gv voltage gain
microphone amplifier
receiving amplifier
Tamb
operating ambient temperature
Line loss compensation
∆Gv
Vexch
Rexch
gain control
exchange supply voltage
exchange feeding bridge resistance
1997 Sep 03
CONDITIONS
Iline = 15 mA
MIN. TYP. MAX. UNIT
3.55 4.0 4.25 V
11 −
140 mA
1 − 11 mA
VCC = 2.8 V
− 0.9 1.35 mA
Iline = 15 mA
Ip = 1.2 mA; MUTE = HIGH 2.2 2.7 −
V
Ip = 0 mA; MUTE = HIGH −
3.4 −
V
Ip = 1.2 mA; MUTE = LOW 2.2 2.7 −
V
Ip = 0 mA; MUTE = LOW −
3.4 −
V
44 −
20 −
−25 −
52 dB
31 dB
+75 °C
− 5.8 −
36 −
60
0.4 −
1
dB
V
kΩ
2
|
Philips Semiconductors
Low voltage transmission circuits with
dialler interface
Product specification
TEA1062; TEA1062A
ORDERING INFORMATION
TYPE NUMBER
TEA1062
TEA1062M1
TEA1062A
TEA1062AM1
TEA1062T
TEA1062AT
NAME
DIP16
DIP16
DIP16
DIP16
SO16
SO16
PACKAGE
DESCRIPTION
plastic dual in-line package; 16 leads (300 mil)
plastic dual in-line package; 16 leads (300 mil)
plastic dual in-line package; 16 leads (300 mil)
plastic dual in-line package; 16 leads (300 mil)
plastic small outline package; 16 leads; body width 3.9 mm
plastic small outline package; 16 leads; body width 3.9 mm
VERSION
SOT38-1
SOT38-4 or
SOT38-9
SOT38-1
SOT38-4 or
SOT38-9
SOT109-1
SOT109-1
BLOCK DIAGRAM
handbook, full pagewidth
IR 10
VCC
13
TEA1062A
LN
1
5
4
GAR
QR
7
MIC
6
MIC
DTMF 11
dB
(1)
MUTE
12
SUPPLY AND
REFERENCE
CONTROL
CURRENT
9
VEE
CURRENT
REFERENCE
14 15
8
REG AGC
STAB
LOW VOLTAGE
CIRCUIT
2
GAS1
3 GAS2
16
SLPE
MBA359 - 1
(1) Pin 12 is active HIGH (MUTE) for TEA1062.
Fig.1 Block diagram for TEA1062A.
1997 Sep 03
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