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TEA1110A Arkusz danych(PDF) 2 Page - NXP Semiconductors

Numer części TEA1110A
Szczegółowy opis  Low voltage versatile telephone transmission circuit with dialler interface
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Producent  PHILIPS [NXP Semiconductors]
Strona internetowa  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TEA1110A Arkusz danych(HTML) 2 Page - NXP Semiconductors

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1997 Apr 22
2
Philips Semiconductors
Product specification
Low voltage versatile telephone
transmission circuit with dialler interface
TEA1110A
FEATURES
• Low DC line voltage; operates down to 1.6 V (excluding
voltage drop over external polarity guard)
• Voltage regulator with adjustable DC voltage
• Provides a supply for external circuits
• Symmetrical high impedance inputs (64 kΩ) for
dynamic, magnetic or piezo-electric microphones
• Asymmetrical high impedance input (32 kΩ) for electret
microphones
• DTMF input with confidence tone
• MUTE input for pulse or DTMF dialling
• Receiving amplifier for dynamic, magnetic or
piezo-electric earpieces
• AGC line loss compensation for microphone and
earpiece amplifiers.
APPLICATION
• Line powered telephone sets, cordless telephones, fax
machines, answering machines.
GENERAL DESCRIPTION
The TEA1110A is a bipolar integrated circuit that performs
all speech and line interface functions required in fully
electronic telephone sets. It performs electronic switching
between speech and dialling. The IC operates at a line
voltage down to 1.6 V DC (with reduced performance) to
facilitate the use of telephone sets connected in parallel.
All statements and values refer to all versions unless
otherwise specified.
QUICK REFERENCE DATA
Iline = 15 mA; VEE =0V; RSLPE =20 Ω; AGC pin connected to VEE; Zline = 600 Ω; f = 1 kHz; Tamb =25 °C;
unless otherwise specified.
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Iline
line current operating range
normal operation
11
140
mA
with reduced performance
1
11
mA
VLN
DC line voltage
3.35
3.65
3.95
V
ICC
internal current consumption
VCC = 2.9 V
1.1
1.4
mA
VCC
supply voltage for peripherals
IP =0mA
2.9
V
Gvtrx
typical voltage gain
microphone amplifier (not adjustable)
VMIC = 4 mV (RMS)
43.7
dB
receiving amplifier range
VIR = 4 mV (RMS)
19
33
dB
∆Gvtrx
gain control range for microphone and
receiving amplifiers with respect to
Iline =15mA
Iline =85mA
5.9
dB
∆Gvtrxm
gain reduction for microphone and
receiving amplifiers
MUTE = LOW
80
dB
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TEA1110A
DIP14
plastic dual in-line package; 14 leads (300 mil)
SOT27-1
TEA1110AT
SO14
plastic small outline package; 14 leads; body width 3.9 mm
SOT108-1


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