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SX1211 Transceiver
Ultra-Low Power Integrated UHF Transceiver
WIRELESS & SENSING
General Description
The SX1211 is a low cost single-chip transceiver
operating in the frequency ranges from 863-870, 902-
928 MHz and 950-960 MHz. The SX1211 is optimized
for very low power consumption (3mA in receiver
mode). It incorporates a baseband modem with data
rates up to 200 kb/s. Data handling features include a
sixty-four byte FIFO, packet handling, automatic CRC
generation and data whitening. Its highly integrated
architecture allows for minimum external component
count whilst maintaining design flexibility. All major RF
communication parameters are programmable and
most of them may be dynamically set. It complies with
European (ETSI EN 300-220 V2.1.1) and North
American (FCC part 15.247 and 15.249) regulatory
standards.
Ordering Information
Table 1: Ordering Information
Features
Low Rx power consumption: 3mA
Low Tx power consumption: 25 mA @ +10 dBm
Good reception sensitivity: down to -107 dBm at
25 kb/s in FSK, -113 dBm at 2kb/s in OOK
Programmable RF output power: up to +12.5 dBm
in 8 steps
Packet handling feature with data whitening and
automatic CRC generation
Wide RSSI (Received Signal Strength Indicator)
dynamic range, 70dB from Rx noise floor
Bit rates up to 200 kb/s, NRZ coding
On-chip frequency synthesizer
FSK and OOK modulation
Incoming sync word recognition
Built-in Bit-Synchronizer for incoming data and
clock synchronization and recovery
5 x 5 mm TQFN package
Optimized Circuit Configuration for Low-cost
applications
Part number
SX1211I084TRT
SX1211I084T
Delivery
Tape & Reel
Tray
Minimum Order
Quantity / Multiple
3000 pieces
200 pieces
Applications
Wireless alarm and security systems
Wireless sensor networks
Automated Meter Reading
SX1211WS Wafer 1 wafer
TQFN-32 package – Operating range [-40;+85°C]
T refers to Lead Free packaging
This device is WEEE and RoHS compliant
Application Circuit Schematic
Home and building automation
Industrial monitoring and control
Remote Wireless Control
Rev 8– February 2013
Page 1 of 92
www.semtech.com
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