INTEGRATED CIRCUITS
DATA SHEET
TEA1096; TEA1096A
Speech and listening-in IC
Product Specification
File under Integrated Circuits, IC03
November 1994
Philips Semiconductors
Philips Semiconductors
Product Specification
Speech and listening-in IC
FEATURES
•
Line Interface with:
– active set impedance (adjustable)
– voltage regulator with adjustable DC voltage
– low voltage circuit for parallel operation
•
Interface to peripheral circuits with:
– supply V
DD
for microcontroller
– stabilized supply voltage (V
BB
) which is:
available for peripheral circuits
adjustable (TEA1096 only)
– Dual-Tone MultiFrequency (DTMF) signal input
– power-down function for pulse dialling/flash
– mute function to disable speech during dialling
•
Microphone amplifier with:
– symmetrical high impedance inputs
– externally adjustable gain
– AGC; line-loss compensation
– dynamic limiter
– microphone mute function
•
Receiving amplifier with:
– externally adjustable gain
– confidence tone during dialling
– double anti-sidetone circuit for long and short lines
– AGC; line-loss compensation
– earpiece protection by soft clipping.
•
Listening-in circuit with:
– loudspeaker amplifier
– dynamic limiter to prevent distortion at any supply
condition
– volume control via a potentiometer
– fixed gain of 35.5 dB
– disable function
– gain control input (TEA1096A only).
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
NAME
TEA1096
TEA1096A
TEA1096T
TEA1096AT
November 1994
DIP28
DIP28
SO28
SO28
DESCRIPTION
APPLICATIONS
TEA1096; TEA1096A
•
Line-powered telephone sets with listening-in/line
monitoring function.
DIFFERENCES BETWEEN TEA1096 AND TEA1096A
The TEA1096 offers via input VBA an adjustable stabilized
supply voltage V
BB
, whereas the TEA1096A offers a fixed
stabilized voltage V
BB
.
The TEA1096A offers a DC gain control input VCI to set
the loudspeaker volume, whereas the TEA1096 offers
volume control via a potentiometer.
GENERAL DESCRIPTION
The TEA1096 and TEA1096A are bipolar ICs intended for
use in line powered telephone sets. They offer a
speech/transmission function, listening-in and line
monitoring facilities of the received line signal via the
loudspeaker.
The devices incorporate a line interface block, a
microphone and DTMF amplifier, a receiving amplifier, a
supply function, a loudspeaker amplifier, and a dynamic
limiter in the transmission channel and the listening-in
channel.
VERSION
SOT117-1
SOT117-1
SOT136-1
SOT136-1
plastic dual in-line package; 28 leads (600 mil)
plastic dual in-line package; 28 leads (600 mil)
plastic small outline package; 28 leads; body width 7.5 mm
plastic small outline package; 28 leads; body width 7.5 mm
2
Philips Semiconductors
Product Specification
Speech and listening-in IC
QUICK REFERENCE DATA
SYMBOL
I
line
I
DD
I
DD(PD)
PARAMETER
line current
CONDITIONS
normal condition
with reduced performance
current consumption from pin V
DD
PD = LOW
during normal operation
current consumption from
capacitor C
VDD
during
power-down
current consumption from
capacitor C
VBB
during
power-down
stabilized voltage (line interface)
supply voltage for microcontroller R
DD
= 390
Ω;
I
P
= 0 mA
R
DD
= 390
Ω;
I
P
= 1 mA
V
BB
G
vtx
stabilized supply voltage
voltage gain from pin MICP or
MICM to LN
voltage gain adjustment with
R
GAS
voltage gain from pin LN to QRP
or QRM
voltage gain adjustment with
R
GAR
line-loss compensation
voltage gain from pin LSI to QLS
maximum output voltage swing
on pin LN (peak-to-peak value)
output voltage between pins QLS
and V
EE
(peak-to-peak value)
operating ambient temperature
R
AGC
= 100 kΩ
V
LSI
= 10 mV (RMS)
V
line
= 50 mV (RMS);
R
GAR
= 90.9 kΩ;
I
line
= 20 mA
V
MIC
= 2 mV (RMS);
R
GAS
= 90.9 kΩ;
I
line
= 20 mA
PD = HIGH
−
−
−
TEA1096; TEA1096A
MIN.
15
−
−
TYP.
MAX.
140
15
2.9
150
UNIT
mA
mA
mA
µA
2.4
100
I
BB(PD)
PD = HIGH
−
350
500
µA
V
SLPE
V
DD
4.2
−
−
3.4
51
4.45
3.5
3.1
3.6
52
4.7
−
−
3.8
53
V
V
V
V
dB
∆G
vtxr
G
vrx
−19
−3.5
−
−2.5
0
−1.5
dB
dB
∆G
vrxr
∆G
trx
G
vlx
V
LN(p-p)
V
QLS(p-p)
T
amb
−12
5
34
−
V
LSI
= 18 mV; I
line
= 20 mA 2.5
−25
−
6
35.5
3.65
2.9
−
8
7
37
4.3
−
+75
dB
dB
dB
V
mA
°C
November 1994
3
Philips Semiconductors
Product Specification
Speech and listening-in IC
BLOCK DIAGRAMS
TEA1096; TEA1096A
Fig.1 Block diagram (TEA1096).
November 1994
4
Philips Semiconductors
Product Specification
Speech and listening-in IC
TEA1096; TEA1096A
Fig.2 Block diagram (TEA1096A).
November 1994
5
