PCM Remote Control Transmitter

The MC14497 is a PCM remote control transmitter realized in CMOS technology. Using a dual–single (FSK/AM) frequency bi–phase modulation, the transmitter is designed to work with the MC3373 receiver. Information on the MC3373 can be found in the Motorola Linear and Interface Integrated Circuits book (DL128/D).

There is not a decoder device which is compatible with the MC14497. Typically, the decoding resides in MCU software.

• Both FSK/AM Modulation Selectable

• 62 Channels (Up to 62 Keys)

• Reference Oscillator Controlled by Inexpensive Ceramic Resonator: Maximum Frequency = 500 kHz

• Very Low Duty Cycle

• Very Low Standby Current: 50 µA Maximum

• Infrared Transmission

• Selectable Start–Bit Polarity (AM Only)

• Shifted Key Mode Available

• Wide Operating Voltage Range: 4 to 10 V

• See Application Notes AN1016 and AN1203