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PDF EM2420 Data sheet ( Hoja de datos )
| Número de pieza | EM2420 | |
| Descripción | 2.4 GHz IEEE 802.15.4 / ZigBee RF Transceiver | |
| Fabricantes | Ember | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de EM2420 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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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
• 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
• Programmable output power
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
1 page  
EM2420
Abbreviations
ADC
AES
AGC
ARIB
BER
CBC-MAC
CCA
CCM
CFR
CTR
CW
DAC
DSSS
ESD
ESR
EVM
FCC
FCF
FIFO
FFCTRL
HSSD
IEEE
IF
ISM
ITU-T
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
I/O
I/Q
kbps
LNA
LO
LQI
LSB
MAC
MFR
MHR
MIC
MPDU
MSDU
NA
NC
O-QPSK
PA
PCB
PER
PHY
PHR
PLL
PSDU
QLP
RAM
RBW
RF
RSSI
RX
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Analog to Digital Converter
Advanced Encryption Standard
Automatic Gain Control
Association of Radio Industries and Businesses
Bit Error Rate
Cipher Block Chaining Message Authentication Code
Clear Cannel Assessment
Counter mode + CBC-MAC
Code of Federal Regulations
Counter mode (encryption)
Continuous Wave
Digital to Analog Converter
Direct Sequence Spread Spectrum
Electro Static Discharge
Equivalent Series Resistance
Error Vector Magnitude
Federal Communications Commission
Frame Control Field
First In First Out
FIFO and Frame Control
High Speed Serial Debug
Institute of Electrical and Electronics Engineers
Intermediate Frequency
Industrial, Scientific and Medical
International Telecommunication Union – Telecommunication
Standardization Sector
Input / Output
In-phase / Quadrature-phase
kilo bits per second
Low-Noise Amplifier
Local Oscillator
Link Quality Indication
Least Significant Bit / Byte
Medium Access Control
MAC Footer
MAC Header
Message Integrity Code
MAC Protocol Data Unit
MAC Service Data Unit
Not Available
No Connect
Offset - Quadrature Phase Shift Keying
Power Amplifier
Printed Circuit Board
Packet Error Rate
Physical Layer
PHY Header
Phase Locked Loop
PHY Service Data Unit
Quad Leadless Package
Random Access Memory
Resolution Bandwidth
Radio Frequency
Receive Signal Strength Indicator
Receive
Ember Part Number: 120-0049-000C
EM2420 Datasheet
Page 5 of 89
5 Page 
EM2420
Parameter
Spurious emission
30 – 1 GHz
1 – 12.75 GHz
Frequency error tolerance
Min.
Typ.
Max. Unit
-57 dBm
-47 dBm
-300
300 kHz
Symbol rate error tolerance
120 ppm
RSSI / Carrier Sense
Carrier sense level
RSSI dynamic range
RSSI accuracy
RSSI linearity
RSSI average time
IF Section
Intermediate frequency (IF)
Frequency Synthesizer Section
Crystal oscillator frequency
Crystal frequency accuracy
requirement
-40
Crystal operation
-77
100
±6
±3
128
2
16
40
Parallel
dBm
dB
dB
dB
µs
MHz
MHz
ppm
Crystal load capacitance
12 16
20 pF
Crystal ESR
60 Ω
Crystal oscillator start-up time
0.86 ms
Condition / Note
Complies with EN 300 440,
CFR47, Part 15 and ARIB STD-
T-66
Difference between center
frequency of the received RF
signal and local oscillator
frequency
[1] requires 200 kHz
Difference between incoming
symbol rate and the internally
generated symbol rate
[1] requires 80 ppm
Programmable in
RSSI.CCA_THR
The range is approximately from
–100 dBm to 0 dBm
See page 48 for details
8 symbol periods, as specified by
[1]
See page 55 for details.
Including aging and temperature
dependency, as specified by [1]
C4 and C5 are loading
capacitors, see page 55
16 pF recommended
16 pF load
Ember Part Number: 120-0049-000C
EM2420 Datasheet
Page 11 of 89
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet EM2420.PDF ] | |
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