PCM Remote Control Transmitter
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document by MC14497/D
PCM Remote Control Transmitter
The MC14497 is a...
Description
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
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