CC2420 Datasheet, PDF (18/92 Pages) List of Unclassifed Manufacturers – 2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver

and Q LO signals to the down-conversion
mixers in receive mode and up-conversion
mixers in transmit mode. The VCO
operates in the frequency range 4800 –
4966 MHz, and the frequency is divided by
two when split in I and Q.
A crystal must be connected to
XOSC16_Q1 and XOSC16_Q2 and
provides the reference frequency for the
synthesizer. A digital lock signal is
available from the PLL.
The digital baseband includes support for
frame handling, address recognition, data
buffering and MAC security.
CC2420
The 4-wire SPI serial interface is used for
configuration and data buffering.
An on-chip voltage regulator delivers the
regulated 1.8 V supply voltage. The
voltage regulator may be enabled /
disabled through a separate pin.
A battery monitor may optionally be used
to monitor the unregulated power supply
voltage. The battery monitor is
configurable through the SPI interface.
SWRS041B
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