BELLING BL50436 Color tv remote control system Datasheet

BL50436Color TV Remote Control System
Description
50436 is a single-chip 4-bit microcomputer developed exclusively for digital tuning systems using the
voltage synthesizer method. It is produced using silicon-gate COMS process and is supplied in a 52-lead
plastic dual-in-line package. It has on screen display control circuit in addition to all the microcomputer
circuits. It is able to receive infrared remote control signal from BL50462,and further, rich controlling
functions are possessed.
Pin assignment
Pin Assignment
PDIP 16 PIN
Features
● 5V ± 10% single power supply; a mere consumed current of 4mA
● 30sets of programs available at the utmost with automatic preset function
● Sequential channel-selecting with local keyboard; sequential or direct channel selecting with remote
control
● A 1/214resolution of tuning voltage
● On screen display function: program number, volume, brightness, contrast, sharp, treble, bass, balance,
tint, video input, residual time of timing turn off, real channel number, system, and multi-aural can be
displayed, altogether in 3 row, which may consist 16 characters in the utmost each. It has 64 characters
and 7 colors, and 4 of the colors can be used simultaneously.
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AFT ON/OFF set-up on every set of program available
Manual tuning regulation
Muting
A maximum 9-analog control(with μPD6326C)
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Redundant channels skipping
Video input conversion control
Selective number of video input (TV/AV1/AV2/RGB, or TV/AV1/AV2, or TV/AV, or TV/only)
Real received channel setting up
Timing turn-off (30 min/60 min/90 min/120min)
Selective number of wave bands (three bands/one band) and wavebands transition
Remote controlling by signal from BL50462
Saving received program
Address: No.810, YiShan Road ShangHai China Tel:86-021-64850700 Fax:86-64852222 Zip.200233
BL50436Color TV Remote Control System
● Operating status i.e. volume, color saturation ratio, contrast, sharp, treble, bass balance, chrominance etc,
will be saved when turn-off. Previous status is entered at next start-up.
● 4MHz operating frequency
● 52-lead dual-in-line plastic package
Application
Used as Central Controlling Unit of infrared remote-control color TV.
Application Circuit
REMOTE
CONTROLLER
ON SCREEN
INT
BT
BRT
VOL
BAND
SWITCH
OSC1
BAND1
OSC2
BAND2
LOW-PASS
FILTER
LOW-PASS
FILTER
LOW-PASS
FILTER
AC
T
H
BRT
VOL
PULSE
V
SYNC
AFT
BL50436
BU
BV
BS
POWER ON
AFT ON/OFF
MUTE
COL
LOCAL KEYBOAD
OSCout
FILTER
OSCin
COL
LOW-PASS
4.0MHz
M58655P
AC
5V
-30V
AND INSTRUCTOR
STANDBY
Address: No.810, YiShan Road ShangHai China Tel:86-021-64850700 Fax:86-64852222 Zip.200233
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