Description
The CXA1870S is a bipolar IC which integrates the NTSC color TV luminance signal processing, chroma signal processing, sync signal processing, and RGB signal processing onto a single chip.

Features
• I2C bus compatible. Various types of adjustments and user controls performed with two bus lines SCL and SDA.
• H and V oscillation frequencies made non adjusting with a countdown system.
• Non-adjusting Y system filters (chroma trap, delay line)
• Built-in V picture distortion correction circuit
• Built-in delay line aperture compensation
• Auto cut-off function for automatic CRT cut-off adjustment and compensation for changes with time
• Multiple inputs
  Composite video:  2 systems 
  (Built-in 2-input, 1-output video switch)
  Y/C separation input:  1 system
  On screen display input: 1 system

Applications
• Color TV
Structure
Bipolar silicon monolithic IC