SX1272 Datasheet, PDF (1/1 Pages) Semtech Corporation – 860-1050 MHz Ultra Low Power Long Range Transceiver

SX1272/73 ^{Modi edversion}
WIRELESS & SENSING
SX1272/73 - 860-1050 MHz Ultra Low Power Long Range Transceiver
R F IO
VBAT1&2
VR_ANA
V R _D IG
P o w e r D istrib u Ɵo n S yste m
LN A
S in g le to
D i e re n tia l
M ixe rs
Σ /∆
M o d u la to rs
RC
O scilla to r
GND
VR_PA
PA_BO O ST
PA0
Ram p &
C o n tro l
PA1& 2
Tank
In d u c to r
Loop
F ilte r
D iv isio n b y
2, 4 or 6
Frac-N PLL
S yn th e size r
XO
32 M Hz
XTAL
RSSI
AFC
GND
RESET
SPI
RXTX
D IO 0
D IO 1
D IO 2
D IO 3
D IO 4
D IO 5
GENERAL DESCRIPTION
Semtech’s SX1272/73 family provides ultra long range while
maintaining low current consumption, making it optimal for
numerous applications.
With Semtech’s patented modulation technique the device
can achieve sensitivity of over -138.5 dBm using a low cost
crystal and bill of materials. The high sensitivity combined
with the integrated +20 dBm power amplifier creates the
highest link budget making it optimal for any application
requiring range. This modulation technique also provides
significant advantages in blocking and selectivity over FSK.
The devices also support high performance (G)FSK for
WMBus, IEEE802.15.4g, and other legacy modes.
Semtech’s technology overcomes a typical trade-off of
performance versus current consumption. The devices
deliver exceptional phase noise, selectivity, receiver
linearity, and IIP3 for significantly lower current consumption
than competing devices.
The devices cover the frequency band from 860-1050MHz.
APPLICATIONS
Automated Meter Reading
Home and Building Automation
Wireless Alarm and Security Systems
Industrial Monitoring and Control
KEY PRODUCT FEATURES
158 dB maximum link budget
+20 dBm - 100 mW constant RF output vs. V supply
+14 dBm high efficiency PA
Programmable bit rate up to 300 kbps
High sensitivity: down to -138.5 dBm
Bullet-proof front end: IIP3 = -12 dBm with FSK
100 dB blocking immunity
Low RX current of 10 mA, 200 nA register retention
Fully integrated synthesizer with a resolution of 61 Hz
FSK, GFSK, MSK, GMSK, LORA and OOK modulations
Built-in bit synchronizer for clock recovery
Sync word recognition
Preamble detection
115 dB+ Dynamic Range RSSI
Automatic RF Sense with ultra-fast AFC
Packet engine up to 64 bytes with CRC
Built-in temperature sensor and low battery indicator
ORDERING INFORMATION
Part Number
SX1272
SX1273
Delivery
T&R
T&R
MOQ / Multiple
3000 pieces
3000 pieces
Rev. 0.0 11th July 2012
Page 1
www.semtech.com