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 k) for dynamic, magnetic or piezo-electric microphones Asymmetrica...

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SeekIC No. : 004517257 Detail

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 Symm...

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Part Number:
TEA1110A
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/1/12

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Product Details

Description



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 k) for dynamic, magnetic or piezo-electric microphones
Asymmetrical high impedance input (32 k) 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.


Pinout

  Connection Diagram


Specifications

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
VLN positive continuous line voltage   VEE - 0.4 +12 V
repetitive line voltage during switch-on or line interruption   VEE - 0.4 +13.2 V
Vn(max) maximum voltage on all pins   VEE - 0.4 Vcc + 0.4 V
Iline maximum line current
RSLPE= 20 ; see
Figs 10 and 11
- 140

mA

Ptot


total power dissipation
TEA1110A
TEA1110AT
Tamb = 75 °C;
see Figs 10 and 11

-
-

588
384

mW
mW
Tstg IC storage temperature   -40 +125 °C
Tamb operating ambient temperature   -25 +75 °C





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.




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