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参数资料
| 型号： | TRC1315DR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 摇控器 |
| 英文描述： | RF, REMOTE CONTROL SUPPORT CIRCUIT, PDSO14 |
| 封装： | PLASTIC, SO-14 |
| 文件页数： | 15/27页 |
| 文件大小： | 358K |
| 代理商： | TRC1315DR |
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TRC1300, TRC1315
MARCSTAR
I E/D
REMOTE CONTROL ENCODER/DECODERS
SLWS011D – AUGUST 1996 – REVISED JANUARY 1997
22
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
4-channel, direct-wired
Figure 9 shows an example of MARCSTAR I E/D devices in a single-wire direct connection. This configuration
is typically used in cable-box decoders, remote lighting, and wired home-security-system applications. 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. When momentary switches S1 – S4 are pressed, the corresponding outputs
on the U2 decoder go low and LEDs D1 – D4 light.
3 V
0.001
F
33 k
Channel 4
Channel 3
Channel 2
Channel 1
More Than One Switch
Can Be Pressed At a
Time
VRC/TX1
VRC/TX2
VRC/TX3
VRC/TX4
OSCR
OSCC
CC
V
DIN/DOUT
CONF
PROG
LED
TEST
/CAP
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
TEST
GND
14
5
6
11
10
9
8
1
2
3412
13
7
TX
RX
Learn
D1– D4
R1– R4
220 k
U1 TRC1300 (encoder)
U2 TRC1315 (decoder)
CC
V
/CAP
CC
V
CC
V
0.001
F
1
F
0.1
F
0.1
F
12 V
1 k
1 k
0.1
F
33 k
NOTE A: Terminal numbers are for the D package.
Figure 9. A 4-Channel, Single-Wire Connection
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