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| 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 n n n n n 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. n n n n n n n n n n n n AFT ON/OFF set-up on every set of program available Manual tuning regulation Muting A maximum 9-analog control(with |I PD6326C) 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 No.810, YiShan Road ShangHai China Tel 86-021-64850700 Fax 86-64852222 Zip.200233 Address BL50436Color TV Remote Control System n n n 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 BU BV BS BT BRT VOL BAND SWITCH BAND1 BAND2 OSC1 OSC2 AC H PULSE V SYNC AFT LOW-PASS FILTER LOW-PASS FILTER LOW-PASS FILTER T VOL MUTE BL50436 BRT COL LOW-PASS FILTER POWER ON AFT ON/OFF OSCout COL OSCin M58655P LOCAL KEYBOAD AND INSTRUCTOR 4.0MHz AC 5V STANDBY -30V Address No.810, YiShan Road ShangHai China Tel 86-021-64850700 Fax 86-64852222 Zip.200233 |
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