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BL0507

Infrared Remote Control Transmitter IC

Description

The BL0507 is an infrared remote control transmitter LSI for TV,

VCR, stereo components, cassette decks, air conditioners, and other

appliances. There are 64 function keys and 3 double action keys, the

128+6 function codes are available by using SELECT terminal. The

transmission code consists of “leader pules”, “16bit customer code”, and

“16 bit date code”. Using micro-processors for decode, various

applications can be realized. (BL0507compatible with NEC standard

µPD 6122-G001)

Features

• Low voltage operation: V

• Low power consumption: I

• A system with an extremely low error rate.

• A fewer external parts

Pin Assignment

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

19

18

20

21

22

23

24

KI2

KI3

KI4

KI5

KI6

KI7

REM

Vdd

SEL

OSCO

OSCI

Vss

LMP

KI/O7

KI/O6

KI/O5

KI/O4

KI/O3

KI/O2

KI/O1

KI/O0

CCS

KI0

KI1

BL0507

24PIN

SOP

• Use of ceramic resonator with a 400 to 500 kHz oscillation is designed for non- adjustment operation

Block Diagram

Oscillation Circuit

Frecuency Division Stage

Timing Gerneration Circuit

Key Input Circuit

Key I/O Circuit

Custom Code ROM

Data Register

Control Circuit

Output Circuit

OSCI

OSCO

LMP

REM

Vss

KI/O0

KI0 ~ KI7

Vdd

SEL

CCS

Pin Description

Pin

Number

Symbol

Type

(In/Out)

Description

8,12

Power supply, Ground