SX1235 Datasheet, PDF (1/104 Pages) Semtech Corporation – EN300 220 Category 1 Compliant Transceiver

WIRELESS & SENSING
SX1235 Transceiver
EN300 220 Category 1 Compliant Transceiver
SX1235
DATASHEET
GENERAL DESCRIPTION
The SX1235 is a highly integrated RF transceiver optimized
for operation compliant with ETSI EN 300 220 receiver
category 1. In conjunction with an external SAW filter the
SX1235 is designed to pass the category 1 testing with
substantial regulatory margin, simplifying end-user
production test requirements. The SX1235 retains the
highly integrated architecture of the SX123x family,
minimizing external components while delivering the highest
level of performance. For hybrid systems with non
category 1 elements within an alarm system the SX1235
offers the advantage of programmable narrow-band and
wide-band communication modes without the need tomodify
external components. This makes the SX1235 suitable for
integrated home automation, security and alarm systems
that require legacy compatibility.
APPLICATIONS
Š Category 1 Social Alarm Systems
Š Category 1 Fire, Smoke and Toxic Gas Detection
Š Category 1 Lone Worker Systems
Š Home and Building Automation
Š Wireless Alarm and Security Systems
Š Industrial Monitoring and Control
MARKETS
Š Optimised for the EN 300-220-1 Category 1
Š North America: FCC Part 15 and Japan: ARIB T-108
KEY PRODUCT FEATURES
Š High sensitivity: down to -123 dBm at 1.2 kbps
Š High selectivity: 60 dB typ. ACR
Š High linearity: 50 dB typ. of adjacent channel saturation
Š 80 dB Blocking immunity, 100 dB with SAW
Š Image rejection of over 45 dB
Š Low current: Rx = 9.3 mA, 100nA register retention
Š Programmable output power +20 dBm in 1 dB steps
Š Optional high efficiency or fully regulated PA connections
for reliable M2M performance and optimal battery
lifetime
Š Voltage operation from 1.8 to 3.7 V
Š Narrowband integrated synthesizer with a resolution of
61 Hz
Š FSK, GFSK, MSK, GMSK and OOK modulation
Š Automated, fast frequency correction & timing recovery
Š Over 115 dB Dynamic Range RSSI
Š Packet engine with CRC 64 byte FIFO
Š Preamble and RSSI based channel activity detection
ORDERING INFORMATION
Part Number Package Delivery
SX1235IMLTRT QFN24
Tape &
Reel
MOQ /
Multiple
3000 pieces
Rev 1 - December 2012
Page 1
www.semtech.com