BL0508A1 データシートの表示（PDF） - Shanghai Belling Co., Ltd.

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BL0508A1

Infrared Remote Control Transmitter IC

Shanghai Belling Co., Ltd. 

BL0508A1 Infrared Remote Control Transmitter IC

Description

The BL0508A1 is an infrared remote control transmitter LSI. There are 32 function keys and 3 double action

keys . The transmission code consists of “leader pulse”, “16bit customer code ”and “16 bit date ”. Using

microprocessors for decode, various applications can be realized. (BL0508A1 is compatible with LC7462)

Pin Assignment

KL0

1

KL1

2

KL2

3

KL3

4

REM 5

V DD

6

SEL 7

OSC0 8

OSC1 9

V SS

10

20 CCS

19 KI/00

18 KI/01

17 KI/02

16 KI/03

15 KI/04

14 KI/05

13 KI/06

12 KI/07

11 LMP

SOP 20

Features

·Low voltage operation: VDD=2.0~3.3V

·Low power consumption: IDD ≤ 1μA at standby mode

·A system with high interference resistance and an

extremely low error rate .

· Fewer external parts

·Use of ceramic resonator with a 400 to 500kHz

oscillation is designed for non-adjustment operation

Applications:

Remote Control for TV

Sample Application Circuit:

455kHz Ceramic Resonator

3V

+

47µF

-

CG

1KΩ

Transmission

Display

CD

VDD OSC1 1 OSC1 0 SEL

CCS

K10~K13

BL0508A1

LMP

VSS

REM

Infrared Light

Emitting Diode

SE103AC,SE307

SE313,SE1003

2SC3616,3618

2SD1615,1616

2SC2001

2.0KΩ

Address： No.810, YiShan Road ShangHai China Tel：86-021-64850700 Fax：86-64852222 Zip.200233

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