资 源 简 介
The rfRXD0420/0920 are low cost, compact singlefrequency short-range radio receivers requiring only aminimum number of external components for acomplete receiver system. The rfRXD0420 covers thereceive frequency range of 300 MHz to 450 MHz andthe rfRXD0920 covers 800 MHz to 930 MHz. TherfRXD0420 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.• High frequency stability over temperature andpower supply variaTIons• Low spurious signal emission• High large-signal handling capability withselectable LNA gain control for improved dynamicrange• Selectable IF bandwidth via external low costceramic IF filter. The IF Frequency range isselectable between 455 kHz to 21.4 MHz. Thisfacilitates the use of readily available low cost10.7 MHz ceramic IF filters in a variety ofbandwidths.• ASK or FSK for digital data recepTIon• FM modulation for analog signal reception• FSK/FM demodulation using quadrature detector(phase coincidence detector)• Received Signal Strength Indication (RSSI) forsignal strength indication and ASK detection• Wide supply voltage range• Low active current consumption• Very low standby current
