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SC9148B Datasheet

  • SC9148B

  • FOR INFRARED REMOTE CONTROL TRANSMITTER

  • 9頁

  • ETC

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Silan
Semiconductors
FOR INFRARED REMOTE CONTROL
TRANSMITTER
DESCRIPTION
The SC9148B is CMOS LSI developed for use on the infrared
remote control transmitter. This LSI has 18 functions, and total 75
commands can be transimitted : 63 commands by the continuous
keys of multiple keyings is possible and 12 commands by the single
shot keys.
SC9148B
SOP-16
FEATURES
* Wide operating voltage range(V
DD=
2.2V ~ 5.0V)
* CMOS structure assures extremely low power dissipation
* Mulitiple keying is possible
* Less external parts
* Adaptable to other Models as Code Bits are available
* An oscillator can be constructed only by connecting an LC or
Ceramic Resonater as the oscillation circuit is housed.
DIP-16
ODERING INFORMATION
SC9148B
SC9148S
Advanced version. All functions same as SC9148. DIP-16 package.
Advanced version. SOP-16 package.
BLOCK DIAGRAM
GND
1
XT
XT
2
3
Decoder
OSC
Devider
VDD
16
Hold/Single pulse
signal generator
Output Synthesizing
Circuit
15
Tx
OUT
K1
K2
K3
4
5
6
Key Input Circuit
Timing Signal
generating circuit
7
K4
8
K5
9
K6
10
T1
11
T2
12
T3
Code Bit signal
Generating Circuit
13
CODE
14
TEST
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Rev: 2.1
2002.09.10.
1

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