SM1223 - E433/868/915

Product Brief
55mm
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SM1223 - E433/868/915
30mm
433, 868 and 915 MHz RF Transmitter Evaluation Module
General Description:
Key Product Features:
The SM1223s are complete Radio Transmitter Modules
operating either in the 433 or 868 or 915 MHz license
free ISM (Industrial Scientific and Medical) frequency
bands. Based on the SX1223 Transmitter, the SM1223
radio module is suitable for applications seeking to
satisfy the European (ETSI EN300-220-1and EN301
439-3) or the North American (FCC part 15.247 and
15.249) regulatory standards.
• No RF knowledge required
• Direct digital interface
• Fully assembled and tested
• Easy connection using connectors
• Optimized low cost design 2 layers PC-Board
Small footprint – 15 mm x 20 mm
• Supply voltage 2.2 V – 3.6 V
• Fully integrated VCO and frequency synthesizer
• Output power is programmable up to 10 dBm
• Data rate up to 153.6 kbit/s
• Current consumption Tx = 25.8 mA at 10 dBm
SX1223 is a single chip transmitter highly integrated
architecture allows for minimum external components
while maintaining design flexibility. All major RF
communication parameters are programmable and
most of them can be set dynamically. The SX1223
offers the advantage of high data rate communication
at rates of up to 153.6 kbit/s. The SX1223 is
optimized for low cost applications while offering
high RF output power. The device is suitable for
applications which have to satisfy either the European
(ETSI-300-220) or the North American (FCC part 15)
Regulatory standards.
Applications:
• Active RFID
• Wireles remote control
• Automated Meter Reading (AMR)
• Home automation and access control
• High-quality speech, music and data over RF
W W W .SE MTE C H .C OM
Product Brief
SM1223- 433, 868 and 915 MHz RF Transmitter Evaluation Module
Symbol
Parameter
Condition
Min
Typ
Max
Unit
SM1223C433T
SM1223C868T
SM1223C915T
433
868
902
-
435
870
928
MHz
-
0.2
1
μA
-
0.2
0.3
mA
6
FR
Synthesizer frequency range
IDDSL
Sleep mode supply current
IDDST
Standby mode supply current
16 MHz running
IDDFS
Supply current in FS Mode
16 MHz running
4.2
PRF = 0 dBm
12
IDDT
TX mode supply current
FDA
Frequency deviation
BR
Bit rate
RFOP
Max RF output power
PRF = 10 dBm
(2)
TS_STR
Transmitter wake-up time
TS_OS
Quartz oscillator wake up time
mA
25
mA
255 (1)
kHz
19.2
Kb/s
Programmable
5
Programmable
1.2
Programmable (3 dB step)
8
10
From oscillator enabled
-
250
500
Fundamental
-
1
2
4.8
dBm
16
μs
ms
MHz
XTAL
Quartz oscillator frequency
PHN
Phase noise
-79
-
dBc/Hz
VIH
Digital input level high
% VDD
75
-
-
%
VIL
Digital input level low
% VDD
-
-
25
%
10dBm unmodulated (50 kHz from carrier)
(1): 250 kHZ max at 433 MHz band
(2): Loop filter would have to be optimized to guaranty performances at other than typical bit rate and center frequency.
The Bit ratecould be increased up to 153.6 kbps providing the loop filter be modified for mw1 or mw2 modulation modes.
Pin Schematic
Pin Configuration
CLOCKOUT
LD
SPI
CONFIG
REF CLOCK (opt,)
EN
NSS SPI
SCK
SPI Clock
SI
SO
Master Out
Master In
SX1223
CORE
DATAIN
DATA
DCLK
DATA OUT
LATCH DATA
MCU
SX1223
Ordering Information
Part Number
Frequency band
SM1223E433T
433 - 435 MHz
SM1223E915T
902 - 928 MHz
SM1223E868T
868 - 870 MHz
Pin Package
Module Board 10 Pin
Dual Inline header
Pin # Name
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
RFOUT
SCK
VDD_EXT
SI
GND
SO
EN
CLKOUT
GND
GND
DCLK
LD
DATAIN
-
I/O Description
I/O
I
I
I
O
I
O
O
O
I
SMA RF Antenna connector
Configuration SPI Clock
Power Supply 3.3V
Configuration Data SPI Slave In
Ground
Configuration Data SPI Slave Out
Not used – no connect
SPI Select
Not used – no connect
Not used – no connect
Clock to MCU (optional). NC if not used
Ground
Not used – no connect
Ground
Not used – no connect
Data clock – connect to MCU (optional : NC if not used)
Not used – no connect
PLL Lock Detect – connect to MCU (optionnal : NC if not used)
Not used – no connect
Data input from MCU
Not used – no connect
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W W W .SE MTE C H .C OM
SM1223-AG-0208