资料介绍
This application note describes a low cost, high
performance UHF short-range radio ASK receiver
design using the Microchip Technology rfRXD0420.
The reference design is suitable for:
• Wireless remote command and control
• Remote Keyless Entry (RKE)
• Security systems
• Low power telemetry applications
The specifics of this re ceiver reference design are:
• Single channel, fixed frequency at 433.92 MHz
• ASK modulation
• Signal rate: 4800 baud
Complete schematics and PC B layout are given in
Appendix A. Bill of Materia ls (BOM) are in Appendix B.
Gerber files are available in the companion file
AN00860B.ZIP. AN860
rfRXD0420 ASK Receiver Reference Design
Author: Steven Bible Crystal Oscillator and Crystal Selection
Microchip Technology Inc. The rfRXD0420 is a single-conversion superhetero-
dyne architecture with a single IF frequency. The
INTRODUCTION receive frequency is set by the crystal frequency (fXTAL)
and intermediate frequency (fif).
This application note describes a low cost, high
performance UHF short-range radio ASK receiver
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