The rfRXD0420/0920 are low cost, compact single
frequency short-range radio receivers requiring only a
minimum number of external components for a
complete receiver system. The rfRXD0420 covers the
receive frequency range of 300 MHz to 450 MHz and
the rfRXD0920 covers 800 MHz to 930 MHz. The
rfRXD0420 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 and
power supply variations
? Low spurious signal emission
? High large-signal handling capability with
selectable LNA gain control for improved dynamic
range
? Selectable IF bandwidth via external low cost
ceramic IF filter. The IF Frequency range is
selectable between 455 kHz to 21.4 MHz. This
facilitates the use of readily available low cost
10.7 MHz ceramic IF filters in a variety of
bandwidths.
? 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) for
signal strength indication and ASK detection
? Wide supply voltage range
? Low active current consumption
? Very low standby current