Datasheet4U Logo Datasheet4U.com

CA3224E - Automatic Picture Tube Bias Control Circuit

General Description

The CA3224E is an automatic picture tube bias control circuit used in color TV receiver CRT drive circuits.

It is used to provide dynamic bias control of the grey scale both initially and over the CRT operating life, compensating for CRT cutoff changes.

Key Features

  • Automatic Picture Tube Bias Cutoff Control.
  • Automatic Background Color Balance.
  • Eliminates Grey Scale Adjustments.
  • Compensates for Cathode-to-Heater Leakage.
  • Electrostatic Protection on All Pins.
  • Servo Loop Design.
  • Wide Dynamic Range.
  • Three-Gun Control.
  • Minimal External Components Part Number Information PART NUMBER CA3224E TEMP. RANGE (oC) -40 to 85.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
CA3220 CATV Amplifier TRW
CA3228 Speed Control System Harris Corporation
CA3232 20 Prescler RCA Solid State
CA3237 IR Remote Control Amplifier Harris
CA324 Operational Amplifiers Intersil

Other Datasheets by Intersil (Renesas)

Part Number Description
CA3227 High-Frequency NPN Transistor Array
CA3242 Quad-Gated Inverting Power Driver For Interfacing Low-Level Logic to High Current Load
CA3260 BiMOS Operational Amplifier
CA3260A BiMOS Operational Amplifier
CA3262 Quad-Gated / Inverting Power Drivers

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
® CA3224E DUCT E NT E PRO T E L O LACEM P E Sheet OBS DataD R ED MEN ECOM October 2002 FN1553.2 NO R Automatic Picture Tube Bias Control Circuit Description The CA3224E is an automatic picture tube bias control circuit used in color TV receiver CRT drive circuits. It is used to provide dynamic bias control of the grey scale both initially and over the CRT operating life, compensating for CRT cutoff changes. The CA3224E provides automatic continuous control of the cutoff current in each gun of a three-gun color CRT. From an input pulse amplitude proportional to the difference between the desired and the actual CRT cutoff, a gated sample/hold circuit generates a DC correction voltage which correctly biases the CRT driver circuit.