LA7577N

Ordering number: EN 4037C Monolithic Linear IC LA7577N Super-split PLL-II VIF and SIF IF Signal Processor for TV/VTRs 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 incorporates 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 Functions VIF stage VIF amplifier PLL detector B/W noise canceler RF AGC VCO Equalizer amplifier AFT APC detector APC filter Lock detector IF AGC Buzz canceler Package Dimensions unit: mm 3067-DIP24S [LA7577N] 1st SIF stage Preamplifier with AGC 1st SIF detector SIF stage SIF limiter amplifier FM quadrature detector Mute stage Sound mute (pin 2) AV mute (pin 4) IS-15 switch (pin 13) Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Allowable power dissipation Symbol VCC max Pd max V3, V13 Circuit voltages V11 V23 Ta ≤ 50...