SC9148B datasheet(1/9 Pages) ETC

Part #	SC9148B

Description	FOR INFRARED REMOTE CONTROL TRANSMITTER

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Silan

Semiconductors

SC9148B

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

Rev: 2.1

2002.09.10.

1

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.

DIP-16

SOP-16

ODERING INFORMATION

SC9148B

Advanced version. All functions same as SC9148. DIP-16 package.

SC9148S

Advanced version. SOP-16 package.

BLOCK DIAGRAM

OSC

Devider

Decoder

Hold/Single pulse

signal generator

Key Input Circuit

Timing Signal

generating circuit

Code Bit signal

Generating Circuit

Output Synthesizing

Circuit

XT

K2

K1

K3

K4

K5

K6

T1

T2

T3

CODE

TEST

Tx

OUT

VDD

GND

3

2

1

16

15

14

13

12

11

10

4

5

6

7

8

9

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