SC9148B Datasheet, PDF (1/9 Pages) List of Unclassifed Manufacturers – FOR INFRARED REMOTE CONTROL TRANSMITTER

Silan
Semiconductors
SC9148B
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.
FEATURES
* Wide operating voltage range(VDD=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.
ODERING INFORMATION
SC9148B
Advanced version. All functions same as SC9148. DIP-16 package.
SC9148S
Advanced version. SOP-16 package.
SOP-16
DIP-16
BLOCK DIAGRAM
XT 2
XT 3
OSC
Devider
GND
1
VDD
16
Decoder
Hold/Single pulse
signal generator
Output Synthesizing
Circuit
15
Tx
OUT
K1 4
K2 5 Key Input Circuit
K3 6
789
K4 K5 K6
Timing Signal
generating circuit
10 11 12
T1 T2 T3
14 TEST
Code Bit signal
Generating Circuit
13
CODE
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Rev: 2.1 2002.09.10.
1