MC14497 Datasheet, PDF (1/8 Pages) Motorola, Inc – PCM REMOTE CONTROL TRANSMITTER

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
©_MOMo_Tto_Oro_Rla,_OIn_Lc._A1995
MC14497
1