rfRXD0420

Features:

• Low cost single conversion superheterodynereceiver architecture
• Compatible with rfPIC™ and rfHCS series of RFtransmitters
• Easy interface to PICmicro® microcontroller(MCU) and KEELOQ® decoders
• VCO phase locked to quartz crystal reference:
- Narrow receiver bandwidth
- Maximizes range and interference immunity
• Selectable LNA gain control for improved dynamic range
• Selectable IF bandwidth via external ceramic IFfilter
• Received Signal Strength Indicator (RSSI) forsignal strength indication (FSK, FM) and ASK demodulation
• FSK/FM quadrature (phase coincidence) detector demodulator
• 32-Lead LQFP package




Application

• Wireless remote command and control
• Wireless security systems
• Remote Keyless Entry (RKE)
• Low power telemetry
• Low power FM receiver
• Home automation
• Remote sensing




Pinout






Specifications

Parameter NameValueRXD Sensitivity FSK-111RXD Selectable LNA GainYesFreq. Range300 to 450Data Rate Kbps80RXD IF FreqRange0.455 to 21.4 RXD RSSIYesIO Pins0

Parameter Name	Value
RXD Sensitivity FSK	-111
RXD Selectable LNA Gain	Yes
Freq. Range	300 to 450
Data Rate Kbps	80
RXD IF FreqRange	0.455 to 21.4
RXD RSSI	Yes
IO Pins	0

Description

The rfRXD0420/0920 are low cost, compact singlefrequency short-range radio receivers requiring only aminimum number of external components for acomplete receiver system. The covers thereceive frequency range of 300 MHz to 450 MHz andthe rfRXD0920 covers 800 MHz to 930 MHz. The device and rfRXD0920 share a common architecture.They can be configured for Amplitude Shift Keying(ASK), Frequency Shift Keying (FSK), or FM modulation.The rfRXD0420/0920 are compatible with rfPIC?and rfHCS series of RF transmitters.