HT6230 datasheet(1/8 Pages) HOLTEK

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HT6230

Infrared Remote Encoder

Block Diagram

1

April 19, 2000

General Description

The HT6230 is designed as infrared remote en-

coder, usually applied to TV systems. A total of

2048 different commands can be generated and

arranged into 32 systems where each system

contains 64 different commands. There are 96

keys and to each key is assigned one program-

mable code. The code is programmable by mask

option. Legal and illegal key operation can be

distinguished.

Features

·

Operating voltage: 2.4V~5.2V

·

32 system codes, each system with

64 command codes

·

Programmable transmission codes

·

Biphase transmission method

·

Generated modulation output data

(1/2 system frequency and 1/4 duty cycle)

·

Single pin oscillator

·

429kHz resonator system clock

·

Test pins available

·

28-pin SOP package

2

D i v i d e r

13

3 ´ 2 1

RC

OS C

TT 1

VD D

VSS

OS C

Mo d e

S e le c t io n

P a r a lle l

To S e r i a l

C onv er t e r

CO DE

MC O D E

TT 2

Z- k e y

En c o d e r

X- k e y

En c o d e r

XI N7

XI N0

ZI N0

Re s e t

Ac t i o n

Ge n e r a t o r

Z- k e y

PA L

X- k e y

PA L

C o m m and

An d

S yst e m

C o de Lat c h

Z - DRS

PAL

X- D R S

PAL

Ke y Sc a n

Dr i v e r

D e c ode r

Ou t p u t

St a g e

M o du l a t i on

Ou t p u t

S t age

MS

DRS 7

DRS 0

ZI N3

Te s t

M ode

Co n t r o l

Un i t

Applications

·

Televisions and video cassette recorder

controllers

·

Garage door controllers

·

Car door controllers

·

Security systems

·

Other remote control systems

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