4-Level FSK Modem Data Pump

The FX919B is a CMOS integrated circuit that contains all of the baseband signal processing and Medium Access Control (MAC) protocol functions required for a high performance 4-level FSK Wireless Packet Data Modem. It Interfaces with the modem host processor and the Radio modulation/demodulation circuits to deliver reliable two-way transfer of the application data over the Wireless link. The FX919B is backwards compatible with the FX919A but offers better performance during Radio link fading and selectable Tx symbol shapes. The FX919B assembles application data received from the processor, adds forward error correction (FEC) and error detection (CRC) information and interleaves the result for burst-error protection. After adding symbol and frame synchronisation codewords, it converts the packet into a filtered 4-level analogue baseband signal for modulating the Radio transmitter. By Consumer Microcircuits Limited
FX919B 's PackagesFX919B 's pdf datasheet

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FX919B Application circuits
FX919B circuits
This is one application circuit of FX919B,If you need more circuits,please download FX919B's pdf datasheet.

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