IA4420 Universal ISM Band FSK TransceiverSilicon Labs IA4420 is a single chip, low power, multi-channel FSK
transceiver designed for use in applications requiring FCC or ETSI
conformance for unlicensed use in the 315, 433, 868 and 915 MHz
bands. The IA4420 transceiver is a part of Silicon Labs EZRadioTM product
line, which produces a flexible, low cost, and highly integrated solution that
does not require production alignments. The chip is a complete Analog RF
and baseband transceiver including a multi-band PLL synthesizer with PA,
LNA I/Q Down Converter mixers, baseband Filters and Amplifiers and an
I/Q Demodulator All required RF functions are integrated. Only an external
crystal and bypass filtering are needed for operation By integration
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