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參數資料
| 型號： | TRC1315D |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 搖控器 |
| 英文描述： | RF, REMOTE CONTROL SUPPORT CIRCUIT, PDSO14 |
| 封裝： | PLASTIC, SO-14 |
| 文件頁數： | 16/27頁 |
| 文件大小： | 358K |
| 代理商： | TRC1315D |
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TRC1300, TRC1315
MARCSTAR
I E/D
REMOTE CONTROL ENCODER/DECODERS
SLWS011D – AUGUST 1996 – REVISED JANUARY 1997
23
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
4-channel, infrared or RF connection
Figure 10 shows an example of MARCSTAR I E/D devices in an infrared or RF connection, typically used in
automobile RKE or security systems. U1 is a TRC1300 configured as an encoder by not connecting the CONF
terminal (which is internally pulled up, so no connection is required). U2, a TRC1315, is configured as a decoder
by tying CONF low (CONF must be low before VCC is applied). PROG is held low by an internal pulldown to
disable the program mode. Closing the Learn switch places U2 in the program mode so that the security code
from an encoder can be learned. Both the encoder and decoder are set to a 2-kHz data clock (DCLK) frequency
(20 kHz sample clock, SCLK) using an external RC at OSCC and OSCR. An LED is connected through a resistor
to the LED terminal of the encoder and indicates transmission of code. Momentary switches S1 – S4 are
internally debounced and pulled up at device inputs VRC/TX1– VRC/TX4. When S1– S4 is pressed, the
corresponding outputs on the U2 decoder go low and LEDs D1 – D4 light.
3 V
0.001
F
33 k
S4 — Channel 4
S3 — Channel 3
S2 — Channel 2
S1 — Channel 1
More Than One Switch
Can Be Pressed At a Time
VRC/TX1
VRC/TX2
VRC/TX3
VRC/TX4
OSCR
OSCC
DIN/DOUT
CONF
PROG
LED
GND
14
5
6
11
10
9
8
1
2
3412
13
7
VRC/TX1
VRC/TX2
VRC/TX3
VRC/TX4
OSCR
OSCC
DIN/DOUT
CONF
PROG
LED
GND
14
5
6
11
10
9
8
1
2
3412
13
7
TX
RX
0.001
F
33 k
D1– D4
R1– R4
1 k
U1 TRC1300 (encoder)
U2 TRC1315 (decoder)
TX
RX
TEST
CC
V
TEST
/CAP
CC
V
CC
V
/CAP
CC
V
1 k
0.1
F1 F
1 k
Learn
0.1
F
12 V
0.1
F
NOTE A: Terminal numbers are for the D package.
Figure 10. A 4-Channel, RF/Infrared Connection
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