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EM2420 Datasheet PDF : 89 Pages
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EM2420
EM2420
2.4 GHz IEEE 802.15.4 / ZigBee RF Transceiver
Applications
• 2.4 GHz IEEE 802.15.4 systems
• ZigBee systems
• Consumer Electronics
Product Description
The EM2420 is a true single-chip 2.4 GHz
IEEE 802.15.4 compliant RF transceiver
designed for low-power and low-voltage
wireless applications. The EM2420 includes
a digital direct sequence spread spectrum
baseband modem and an effective
datarate of 250 kbps. The EM2420 chip is
only available from Ember with a licensed
Ember networking stack and is targeted to
approved 8-bit processors.
The EM2420 is a low-cost, highly integrated
solution for robust wireless communication
in the 2.4 GHz unlicensed ISM band. It
complies with world-wide regulations
covered by EN 300 440 (Europe), CFR47
Part 15 (US) and ARIB STD-T-66 (Japan).
The EM2420 provides extensive hardware
support for packet handling, data
buffering, burst transmissions, data
encryption, data authentication, clear
channel assessment, link quality indication
and packet timing information. These
• Industrial Control
• Home/building automation
• PC peripherals
features reduce the load on the host
controller and allow the EM2420 to
interface low-cost microcontrollers.
The configuration interface and transmit /
receive FIFOs of the EM2420 are accessed
via a SPI interface. In a typical application,
the EM2420 will be used together with a
microcontroller and a few external passive
components.
The EM2420 is manufactured to a 0.18 µm
CMOS process.
Key Features
• True single-chip 2.4 GHz IEEE
802.15.4 compliant RF transceiver
with baseband modem, MAC support,
and networking stack.
• DSSS baseband modem with 2
MChips/s and 250 kbps effective data
rate.
• Suitable for both RFD and FFD
operation
• Low current consumption (RX: 19.7
mA, TX: 17.4 mA)
• Low supply voltage (2.1 – 3.6 V) with
integrated voltage regulator
• Low supply voltage (1.6 – 2.0 V) with
external voltage regulator
• Programmable output power
• No external RF switch / filter needed
• I/Q low-IF receiver
• I/Q direct upconversion transmitter
• Very few external components
• 128 (RX) + 128 (TX) byte data
buffering
• Digital RSSI / LQI support
• Hardware MAC encryption (AES-128)
• Battery monitor
• QLP-48 package, 7x7 mm
• Complies with EN 300 440 and FCC
CFR-47 part 15, ARIB STD-T-66
• Powerful and flexible development
tools available
This document contains information on a preproduction product. Specifications and information herein are subject to
change without notice.
Ember Part Number: 120-0049-000C
EM2420 Datasheet
Page 1 of 89
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