MC14497

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC14497/D 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 BLOCK DIAGRAM MC14497 P SUFFIX PLASTIC DIP CASE 707 18 1 ORDERING INFORMATION MC14497P Plastic DIP PIN ASSIGNMENT E3 1 E2 2 E9 3 A4 4 A3 5 A2 6 A1 7 SIGNAL OUT 8 VSS 9 18 VDD 17 E1 16 E4 15 E5 14 E6 13 OSCout 12 OSCin 11 E8 10 E7 VDD 18 17 E1 2 E2 1 E3 16 KEYBOARD E4 15 E5 14 E6 10 E7 11 E8 A4 A3 A2 A1 3 E9 7 6 5 4 FK3 FK1 ENCODER 7–BIT SR OUTPUT CONTROL 8 MUX 3–BIT LATCH SEQUENCE CONTROL STANDBY SCANNER DIVIDER ÷ 32 9 DIVIDER ÷ 10/12 DIVIDER ÷ 16 OSC IN OUT 12 13 500 kHz CERAMIC RESONATOR SAME AS IN DL136/D R3 ©MOMoTtoOroRla,OInLc.A1...