SM1211 Ultra Low Power Integrated UHF Transceiver Module

Product Brief
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SM1211
Ultra Low Power Integrated UHF Transceiver Module
General Description:
Key Product Features:
The purpose of this module is to provide a development
platform of the SX1211. User can build his application
prototype by simply connecting the module to his target
microcontroller and start developing his application
software. The SM1211 module integrates the SX1211
reference design (chip + external components) plus
miscellaneous useful connectors.
• Small form factor design footprint <150 mm2
Optimized Low-cost design – 2 layers PC-board
• Low Rx power consumption: 3 mA
• Low Tx power consumption: 25 mA @ +10 dBm
• Good reception sensitivity: down to -107 dBm
at 25 kb/s in FSK, -113 dBm at 2 kb/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 Rx noise floor to 0 dBm
• 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
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 (3 mA in receiver mode). It
incorporates a baseband modem with data rates up to
150 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 while
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.
Note: This module is also used for the SX1211 Starter Kit.
Applications:
•
•
•
•
•
•
Active RFID PHY
Battery powered remote sensors
Wireless alarm and security systems
Automated meter reading
Home and building automation
Industrial monitoring and control
• Remote wireless control
W W W .SE MTE C H .C O M
Product Brief
SM1211 – Ultra-Low Power Integrated UHF Transceiver Module
Characteristics
Parameter
Min
Typ
Max
Unit
Condition
Operating Conditions
Operating temperature range
-20
+85
°C
Operating supply voltage
2.1
3.6
V
Digital input level high - VIH
75
%
Percentage of Vdd
25
%
Percentage of Vdd
Digital input level low - VIL
Current Consumption
Max current consumption
30
mA
Tx Power = +12.5 dbm RLoad= 50 Ω
Rx mode current consumption
3
mA
All modules active
0.1
µA
SPI port active
MHz
Freq. and Channel BW are programmable 860-960 Mhz
Sleep mode current consumption
RF Characteristics
Frequency range
863
870
902
902
0
dBm
At the antenna port
1.56
200
kbps
FSK Mode
OOK Mode
Max input power
Data rate
1.56
33
Frequency deviation
50
Spurious emission
32
kbps
200
Khz
FSK Mode
-47
dBc
Offset = 200 - 600 kHz, unmodulated carrier, Fdev = 50 kHz
-107
dBm
868 MHz, BR=25 kb/s, Fdev=50 kHz, fc=100 kHz
RSSI dynamic range
70
dB
Ranging from sensitivity
Adjacent channel rejection
27
dB
Offset = 300 Khz
Blocking immunity
-48
dBm
Offset = 1 Mhz
Rx sensitivity
Conditions: Temp = 25°C, VDD = 3.3 V, crystal frequency = 12.8 MHz, unless otherwise specified.
Pin Configuration
Module layout
Pin #
Signal
Pin #
Signal
1
3
5
SCK
MOSI
IRQ_1
2
4
6
VDD (3.3 V)
GND
PLL_LOCK
7
9
11
13
15
17
19
NSS_CONFIG
CLKOUT
8
10
12
14
16
18
20
MISO
IRQ_1
DATA
NSS_DATA
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4." Ordering Information
Part Number
10 Pin DIL Header
5&45
5&45
5&45
5&45
5&45
5&45
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W W W .SE MTE C H .C O M
SM1211-PB-0408
Pin Package
SM1211-C915
SM1211-C868
IRQ_0
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