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MX439 - MSK Modem

Datasheet Summary

Description

The MX439 is a single-chip CMOS LSI circuit which operates as a 1200 baud MSK modem.

The mark and space frequencies are 1200Hz and 1800Hz phase continuous, and the frequency transitions occur at the zero crossing point.

Features

  • 1200 Baud MSK Modem.
  • Meets Cellular & Trunked Radio Specifications.
  • Full-Duplex 1200 Baud.
  • On-Chip RX and TX Bandpass Filters.
  • Clock Recovery and Carrier Detect.
  • Pin Selectable Xtal/Clock Frequencies Document #2048-0041.005 June 1995.

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Datasheet preview – MX439

Datasheet Details

Part number MX439
Manufacturer CML
File Size 1.15 MB
Description MSK Modem
Datasheet download datasheet MX439 Datasheet
Additional preview pages of the MX439 datasheet.

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Full PDF Text Transcription

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MX439DATA BULLETIN MSK Modem Features • 1200 Baud MSK Modem • Meets Cellular & Trunked Radio Specifications • Full-Duplex 1200 Baud • On-Chip RX and TX Bandpass Filters • Clock Recovery and Carrier Detect • Pin Selectable Xtal/Clock Frequencies Document #2048-0041.005 June 1995 Applications • Mobile & Cellular Radio Data Signaling • Personal Radio • Portable Data Terminals • General Purpose Applications AVAILABLE PACKAGES MX439LH 24-pin PLCC MX439DW 24-pin SOIC Figure 1 - Internal Block Diagram MX439J: 22 pin CDIP MX439P: 22 pin PDIP Brief Description The MX439 is a single-chip CMOS LSI circuit which operates as a 1200 baud MSK modem. The mark and space frequencies are 1200Hz and 1800Hz phase continuous, and the frequency transitions occur at the zero crossing point.
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