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PDF TEA1110A Data sheet ( Hoja de datos )
| Número de pieza | TEA1110A | |
| Descripción | LOW VOLTAGE VERSATILE TELEPHONE TRANSMISSION TELEPHONE TRANSMISSION INTERFACE | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TEA1110A (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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UNISONIC TECHNOLOGIES CO., LTD
TEA1110A
LINEAR INTEGRATED CIRCUIT
LOW VOLTAGE VERSATILE
TELEPHONE TRANSMISSION
CIRCUIT WITH DIALLER
INTERFACE
SOP-14
DESCRIPTION
The UTC TEA1110A is a versatile telephone transmission circuit
providing full speech and line interface functions in electronic
telephone sets. This device works at a line voltage which can be as
low as 1.6V DC (with reduced performance) to enable parallel
connection of telephone sets. It also realizes electronic switching
between speeches and dialling.
The UTC TEA1110A is ideal for applications, such as line
powered telephone sets, cordless telephones, and fax machines,
answering machines.
FEATURES
* Low DC line voltage; operates down to 1.6V (excluding voltage
drop over external polarity guard)
* Voltage regulator with adjustable DC voltage
* Provides a supply for external circuits
* Symmetrical high impedance inputs (64kΩ) for dynamic, magnetic
or piezo-electric microphones
* Asymmetrical high impedance input (32kΩ) for electric
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.
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
TEA1110AL-D14-T
TEA1110AG-D14-T
- TEA1110AG-S14-R
Package
DIP-14
SOP-14
DIP-14
Packing
Tube
Tape Reel
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
1 of 9
QW-R108-014.D
1 page  
TEA1110A
LINEAR INTEGRATED CIRCUIT
APPLICATION INFORMATION CIRCUIT
Typical application of the UTC TEA1110A in sets with Pulse Dialling or Flash facilities
RCC
Rprotect
10Ω
BZX79C10
a/b
Telephone
line
VDR
95V
-
4×
BAS11
+
b/a
Rast1
130KΩ
CIR
619
IR LN
Vcc
CVCC +
100μF
supply for
peripheral
circuits
3R.a9s2t2kΩ10C0GpAFR
CGARS
Rast3
1nF
QR UTC
TEA1110A
GAR
MIC +
DTMF
MIC -
MUTE
SLPE REG AGC VEE
signal from
dial and
control circuits
390Ω
Zbal
RSLPE
20Ω
+ CREG
4.7μF
BSN254
Rpd1
BC558
BF473
Rpd4
Rpd5
470kΩ
470kΩ
BC547
Rpd6
68kΩ
PD
input
RLIMIT
3.9Ω
BC547
470kΩ
BZX79C10 Rpd2
470kΩ
Rpd3
1MΩ
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 9
QW-R108-014.D
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet TEA1110A.PDF ] | |
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