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Date Posted: 14:22:42 09/06/05 Tue
Author: PULSE
Subject: Re: DESBLOQUEIO DE TVA MMDS SAO PAULO
In reply to: PULSE 's message, "DESBLOQUEIO DE TVA MMDS SAO PAULO" on 14:16:34 09/06/05 Tue

Estou desenvolvendo um desbloqueio analógico da TVA em
SP MMDS. A idéia é não usar microcontroladores. Para
uso no VCR. Com detecção automática de sistema. Sem aquela tal plaquinha mágica, que tem performance muito aquém do esperado(prometido). O AMP de video usa um TL592 (Diff Amp) o detector um LM564 o separador de sinc é um LM393 e tem um 4040 pra fazer a contagem de campos. A perda de sincronismo nas 15 primeiras linhas é menor que 8% para um padrao barras SMPTE e cerca de 12% para imagens escuras de um filme com tarjas.
Interessados entrar em contato via meu e-mail (retirar
o www para enviar a mensagem) . R.

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