EM2420 ETC [List of Unclassifed Manufacturers], EM2420 Datasheet - Page 17

• Manufacturer Part Number: EM2420
• Description: 2.4 GHz IEEE 802.15.4 / ZigBee RF Transceiver
• Manufacturer: ETC [List of Unclassifed Manufacturers]

connecting RXTX_SWITCH to RF_P and
RF_N through an external DC path.
The frequency synthesizer includes a
completely on-chip LC VCO and a 90
degrees phase splitter for generating the I
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
XOSC16_Q1
provides the reference frequency for the
synthesizer. A digital lock signal is
available from the PLL.
Ember Part Number: 120-0049-000C
crystal
must
and
be
XOSC16_Q2
connected
and
EM2420 Datasheet
to
The digital baseband includes support for
frame handling, address recognition, data
buffering and MAC security.
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.
configurable through the SPI interface.
The
battery
EM2420
monitor
Page 17 of 89
is