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PDF TEA1111AT Data sheet ( Hoja de datos )

Número de pieza TEA1111AT
Descripción Speech circuit with dialler interface/ regulated supply and earpiece volume control
Fabricantes NXP Semiconductors 
Logotipo NXP Semiconductors Logotipo



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No Preview Available ! TEA1111AT Hoja de datos, Descripción, Manual

INTEGRATED CIRCUITS
DATA SHEET
TEA1111A
Speech circuit with dialler interface,
regulated supply and earpiece
volume control
Product specification
Supersedes data of 1999 Sep 28
File under Integrated Circuits, IC03
1999 Nov 22

1 page




TEA1111AT pdf
Philips Semiconductors
Speech circuit with dialler interface, regulated
supply and earpiece volume control
Product specification
TEA1111A
This means that several sets can operate in parallel with
DC line voltages (excluding the polarity guard) down to an
absolute minimum voltage of 1.5 V. At line currents below
Ilow, the circuit has limited sending and receiving levels.
This is called the low voltage area.
THE INTERNAL SUPPLY POINT (PIN VCC)
The internal circuitry of the TEA1111A is supplied from
pin VCC. This voltage supply is derived from the line
voltage by means of a resistor (RCC) and must be
decoupled by a capacitor CVCC. It may also be used to
supply some external circuits.
The VCC voltage (see also Figs 4 and 5) depends on the
current consumed by the IC and the peripheral circuits as:
VCC0 = VLN RCC × ICC
VCC = VCC0 RCC × (IP + Irec)
Where Irec is the current consumed by the output stage of
the earpiece amplifier.
handbook, full pagewidth
Rline
ILEDC
Iline
RCC
ILN
ICC
LED
CIRCUIT
LEDC
REXCH
LED
CONTROL
LN VCC
from preamplifier
ISUP
VDD
REGULATOR
internal
circuitry
VDD
IDD
CVCC
100 µF
IP
external
circuits
VEXCH
SLPE
ISLPE
RSLPE
20
TEA1111A
REG
VEE
CREG
4.7 µF
peripherals
CVDD
220 µF
FCA053
1999 Nov 22
Fig.3 Supply configuration.
5

5 Page





TEA1111AT arduino
Philips Semiconductors
Speech circuit with dialler interface, regulated
supply and earpiece volume control
Product specification
TEA1111A
handbook, full pagewidth
Zline
VEE
RCC
LN
Zbal
Im IR
RSLPE
Rast1 RA
SLPE
Zir
MBE786
Fig.11 Equivalent circuit of an anti-sidetone network in a Wheatstone bridge configuration.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
VLN positive continuous line voltage
repetitive line voltage during switch-on or
line interruption
VEE 0.4 12
VEE 0.4 13.2
V
V
IDD maximum input current at pin VDD
VCC supply voltage
VMUTE, VVCI maximum voltage on pins MUTE and VCI
Vn(max)
maximum voltage on all pins except
pins VDD, MUTE and VCI
Iline line current
Ptot TEA1111AT total power dissipation
Tstg storage temperature
Tamb
ambient temperature
Tj junction temperature
VEE 0.4
VEE 0.4
VEE 0.4
RSLPE = 20 ; see Fig.12
Tamb = 75 °C; see Fig.12
40
25
75
12
VDD + 0.4
VCC + 0.4
140
416
+125
+75
+125
mA
V
V
V
mA
mW
°C
°C
°C
1999 Nov 22
11

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