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KA8503 - Low Voltage Speech Network

Datasheet Summary

Description

Pin No 1 2 3 4 5 6 7, 8, 9 10 11 12, 13 14 15 16 17, 18 Symbol V+ TXO TXI VDD MUTE GR ST1, ST2, ST3 STO MIC0 MIC1, MIC2 VRXI RXO1 RXO2, ROX3 Seperate amplifier output.

Microphone amplifier output.

Microphone amplifier inputs.

Features

  • Adjust Sending and Receiving Attenuation Length.
  • Mute Function.
  • Side Tone Balance Network Constitution.
  • Low Voltage Operating.
  • AC Impedance Matching.
  • Uses in Inexpensive Components (5 Capacitors & 10 Resistors).
  • Uses a minimum of external components.

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Datasheet preview – KA8503

Datasheet Details

Part number KA8503
Manufacturer Samsung Semiconductor
File Size 90.29 KB
Description Low Voltage Speech Network
Datasheet download datasheet KA8503 Datasheet
Additional preview pages of the KA8503 datasheet.

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Full PDF Text Transcription

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KA8503 LOW VOLTAGE SPEECH NETWORK INTRODUCTION The KA8503 is a telephone low voltage speech network which includes mic amp. transmit amp, side-tone amp, receive amp. It handles the voice signal performing the 2/4 wire interface and changing the gain on both sending and receiving amplifiers to compensate for line attenuation by sensing the line length through the line current. Application dependent parameters such as amplitude of each amp, sidetone level line balance, and frequency response are controlled by external components. Each gain can be controlled by external component exchange. The receiver output driving capability is adjustable. 18-DIP-300A www.DataSheet4U.
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