Overview
The LA76843N is I2C bus controller ICs that support the different TVbroadcast formats used worldwide and aim for rationalization of color TV set design, improved manufacturability, and lower total costs

FEATUREs
•Single crystal multiformat system that supports the different TV broadcast formats used worldwide
•NTSC system : LA76843N (YCbCr and E/W support)
•Adjustment-free VIF/SIF, audio trap/audio bandpass filters
•Adjustment-free horizontal resonator system
•Simplified SG
•Supply voltage : VCC= 5V/9V

Function
•VIF/SIF
  Adjustment-free VCO, buzz canceller
  RF AGC/video level/FM level control
•Black stretch, sharpness control with coring on/off control, built-in variable Y system filters
(Y-DL and chrominance trap)
•Chrominance bandpass filter, demodulation angle control