LA7577中文資料三洋數(shù)據(jù)手冊(cè)PDF規(guī)格書

Overview

The LA7577N is a high tone quality and high picture quality, video IF and sound IF IC. It employs split processing

of the video IF signal and sound IF signal using SAW filters and a PLL detector. Further, the PLL detector incorpo

rates a buzz canceler for Nyquist buzz interference suppression to achieve high tone quality.

Features

? Employs split processing for wide bandwidth video characteristics

? PLL detector with buzz canceler for excellent buzz and buzz beat characteristics

? APC time constant switch built-in

? High-speed AGC supports double time constant method

? SIF carrier level AGC in the 1st SIF stage for good SIF weak electric field characteristics

? Good differential gain and phase characteristics

? RF AGC easily adjusted using a variable resistor