LA7577
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:...
