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TP5700A

Features: · 5 mA±120 mA loop operation· Voltage swing down to 1.0V· Electret microphone amplifier· Receive amplifier with push-pull outputs· Automatic gain compensation for loop length· Sidetone impedance independent of input impedance· DTMF interface with muting· Voltage regulator outputs for DTM...

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SeekIC No. : 004525909 Detail

TP5700A: Features: · 5 mA±120 mA loop operation· Voltage swing down to 1.0V· Electret microphone amplifier· Receive amplifier with push-pull outputs· Automatic gain compensation for loop length· Sidetone imp...

TP5700A Data Sheet

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Part Number:
TP5700A
Supply Ability:
5000

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

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Product Details

Description



Features:

· 5 mA±120 mA loop operation
· Voltage swing down to 1.0V
· Electret microphone amplifier
· Receive amplifier with push-pull outputs
· Automatic gain compensation for loop length
· Sidetone impedance independent of input impedance
· DTMF interface with muting
· Voltage regulator outputs for DTMF generator etc.
· Works in parallel with a standard phone on 20 mA loop
· Available in small outline surface mount package


Specifications

Va with Respect to V..............- 20V
Voltage at Any Other Pin Va... +0.3V to Vb - 0.3V
Operating Temperature, TA ..... -25 to +70
Power Dissipation (Note 3) ........... 1W
Storage Temperature, TS .....   -65 to +150
Junction Temperature .............150
Lead Temperature (Soldering, 10 seconds).. 300


Description

The TP5700A is a linear bipolar device which includes all the functions required to build the speech circuit of a telephone.

TP5700A replaces the hybrid transformer, compensation circuitand sidetone network used in traditional designs. When used with an electret microphone (with integral FET buffer) and dynamic receiver, superior audio linearity, distortion and noise performance are obtained. Loop attenuation compensation is also included.

The low voltage design enables the TP5700A circuit to work over a wide range of operating conditions, including long loops, extension telephones and subscriber carrier applications. Operating power is derived from the telephone line.




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