Holy Stone Enterprise Co., Ltd
OT-STM315/434AB
DESCRIPTION
STM is a low coast A.S.K. SAW transmitter module.
It makes RF remote techniques easily, just input the
data code and output with a high stability RF
signal.
FEATURES
SAW chip on board technology
Low power consumption
Operation temperature range :
20
70
Wide range of operation voltage : 1.5
15 Volts.
Easy for application
RF output -10~+16dBm at 3V DC operation
voltage
Available frequency at follows :
433.92 / 315 MHz
PIN ASSIGNMENT
APPLICATIONS
Car security system
Garage door controller
Home security
Wireless mouse
Automation system
BLOCK DIAGRAM
Absolute Maximum Ratings
Parameter Rating Units
Supply Voltage
0.3 to 15
V DC
Data Input Voltage
0.3 to VDD+0.3
V DC
Operating Temperature
20 to 70
Storage Temperature
40 to 150
Specification
Parameter
Min. Typical Max.
Unit Condition
Frequency Range
Fix by SAW
315
433.92
MHz
Frequency
Accuracy A
75 kHz
Frequency
Accuracy B
250 kHz
Frequency
Accuracy AB
150 kHz
0 1 3
dBm
At 3 Volt. Power 50 Load
Output Power
3 5 8
dBm
At 12Volt. Power 50 Load
3
4
5
mA
At 3 Volt. Power Data Input = VDD
Current
Consumption
17
20
25
mA
At 12Volt. Power Data Input = VDD
Modulation
Frequency
0
1
2
kHz
On-Off Key (OOK)
PIN NO.
Function
Description
Inter Connection
1
RF Output
OSC Unbuffered Output
2 GND
Ground
Connection
3
Data Input
On-Off Key Logic Data Input
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