MX439 modem equivalent, msk modem.
* 1200 Baud MSK Modem
* Meets Cellular & Trunked Radio
Specifications
* Full-Duplex 1200 Baud
* On-Chip RX and TX Bandpass Filters
* Clock Recovery an.
* Mobile & Cellular Radio Data Signaling
* Personal Radio
* Portable Data Terminals
* General Purpose Ap.
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. The transmitter and receiver w.
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