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PDF MC14497 Data sheet ( Hoja de datos )
| Número de pieza | MC14497 | |
| Descripción | PCM Remote Control Transmitter | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MC14497 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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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.A1995
MC14497
1
1 page  
KEY DOWN
DEBOUNCE
A1
A2
KEY RELEASED
A3
A4
Figure 5. Scanner Output Timing Diagram
KEYBOARD
1500 µF 9 V 100 Ω
1N4001
18
MC14497
9 12
C1
100 Ω
*
1 kΩ
8
13
* Visible Indicator
C2
0.1 Ω
C1 and C2 are sized per the ceramic resonator supplier’s recommendation.
Ceramic Resonator Suppliers:
1. Morgan Matrox, Inc., Bedford, OH, 216/232–8600
2. Radio Materials Co., Attica, IN, 317/762–2491
Motorola cannot recommend one supplier over another and in no way suggests that this is a
complete listing of ceramic resonator suppliers.
Figure 6. Typical Application Circuit
MOTOROLA
MC14497
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MC14497.PDF ] | |
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