SX1211 Datasheet, PDF (1/73 Pages) Semtech Corporation – Lowest Power Integrated UHF Transceiver Short Range Devices

ADVANCED COMMUNICATIONS & 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 100 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) regulatory standards.
Applications
Wireless alarm and security systems
Wireless sensor networks
Automated Meter Reading
Home and building automation
Industrial monitoring and control
Block Diagram
SX1211 Transceiver
Lowest Power Integrated UHF Transceiver
Short Range Devices
Features
Low Rx power consumption: 3mA
Low Tx power consumption: 25 mA @ +10 dBm
Good reception sensitivity: down to -104 dBm at
25 kb/s in FSK, -111 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
RSSI (Received Signal Strength Indicator) range
from noise floor to 0 dBm
Bit rates up to 100 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
Ordering Information
Table 1: Ordering Information
Part number
Temperature Range Package
SX1211I084TRT -40 °C to +85 °C
Lead Free
TQFN-32
TR refers to Tape and Reel delivery
T refers to Lead Free packaging
This device is WEEE and RoHS compliant
V3.0 – august 15^th, 2007
Page 1 of 73
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