EM2420 データシートの表示（PDF） - Unspecified
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EM2420 Datasheet PDF : 89 Pages
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EM2420
Features
• 2400 – 2483.5 MHz RF Transceiver
Direct Sequence Spread Spectrum
(DSSS) transceiver
250 kbps data rate, 2 MChip/s chip
rate
O-QPSK with half sine pulse shaping
modulation
Very low current consumption (RX:
19.7 mA, TX: 17.4 mA)
High sensitivity (-94 dBm)
High adjacent channel rejection (39
dB)
High alternate channel rejection (46
dB)
On-chip VCO, LNA and PA
Low supply voltage (2.1 – 3.6 V) with
on-chip voltage regulator
Programmable output power
I/Q low-IF soft decision receiver
I/Q direct up-conversion transmitter
• Separate transmit and receive FIFOs
128 byte transmit data FIFO
128 byte receive data FIFO
• Very few external components
Only reference crystal and a
minimized number of passives
No external filters needed
• Easy configuration interface
4-wire SPI interface
Serial clock up to 10 MHz
• 802.15.4 MAC hardware support:
Automatic preamble generator
Synchronization
word
insertion/detection
CRC-16 computation and checking
over the MAC payload
Clear Channel Assessment
Energy detection / digital RSSI
Link Quality Indication
Full automatic MAC security (CTR,
CBC-MAC, CCM)
• 802.15.4 MAC hardware security:
Automated security operations within
the receive and transmit FIFOs.
CTR mode encryption / decryption
CBC-MAC authentication
CCM encryption / decryption and
authentication
Stand-alone AES encryption
• Development tools available
Ember Evaluation Kit: A twelve-node
evaluation kit designed to allow
users to characterize their
application environment and
familiarize themselves with
Ember's Embedded RF solutions
and Network Management
software.
Ember Developer Kit: Everything
developers need to create Ember
Enabled applications. The Ember
Developer Kit includes breakout
hardware, Ember RF modules and
the EmberNet Stack, a self-
organizing, self-healing, flexible
networking
stack
that
accommodates mesh, star and
hybrid network topologies. The
EmberNet Stack is accessible
though a straightforward and
powerful API.
• Small size QLP-48 package, 7 x 7 mm
• Complies with EN 300 440 and FCC
CFR47 part 15, ARIB STD-T-66
Ember Part Number: 120-0049-000C
EM2420 Datasheet
Page 7 of 89
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