DESCRIPTION
SM5038RF is a remote control decoder paired with SM5028RF utilizing CMOS Technology. It has 12-bit 2-state address pins providing a 2 12address codes; thereby, drastically reducing any code collision and unauthorized code
scanning possibilities. SM5038RF is available in several options to suit every application needs :variable number of data output pins, latch or momentary output type.
FEATURES
CMOS Technology
Low Power Consumption Very High Noise Immunity
Up to 12 2-State Code Address Pins Wide Range of Operating Voltage:Vcc = 3 ~ 12 Volts
Single Resistor Oscillator
Available in DIP and SOP Package APPLICATIONS
Car Security Garage Door
Home Security/Automation System Toys
Remote Control for Industrial Use
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**PIN CONFIGURATION ( DIP )
Vcc VT OSC1OSC2DIN A11/D0A10/D1A9/D2A8/D3
SM5038RF
A0A1A2A3A4A5A6A7Vss
NC A0
A1A2A3A4A5A6A7Vss
NC Vcc VT OSC1OSC2DIN A11/D0A10/D1A9/D2A8/D3
SM5038S
2RF DECODER
S AM H OP Microelectronics Corp.
BLOCK DIAGRAM
DIN VT
Address
VDD VSS
2RF DECODER
S AM H OP Microelectronics Corp.
PIN DESCRIPTION
2RF DECODER
S AM H OP Microelectronics Corp.
Decoder with Data Output Pins
After Power On SM5038RF is set in Address search mode, if SM5038RF finds 3 consecutive Address that matches the
Address setting of SM5038RF.SM5038RF will enter Data Compare
mode. It will compare perviously 3received data, if they match then
SM5038RF will set VT high and send data
O/P.
2RF DECODER
S AM H OP Microelectronics Corp.
Single Resistor Oscillator
SM5038RF's oscillator can be constructed by connecting a resistor between OSC1 and OSC2 pin.
Encoder OSC Frequency
350
300
250
200
150
100
50
KHz 3 4 5 6 7 8 9 10 11 12 VOLTAGE
100K
82K 68K
51K
43K
150K
180K
The recommended oscillator frequency is F OSCD (SM5038RF decoder)=10 F OSCD (SM028RF
encoder)
~2RF DECODER
S AM H OP Microelectronics Corp.
DC ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
(Ta=25 o C)
2RF DECODER
S AM H OP Microelectronics Corp.
APPLICATION CIRCUIT
2RF DECODER
S AM H OP Microelectronics Corp.
ORDERING INFORMATION
2RF DECODER
S AM H OP Microelectronics Corp.