TDA4443 Datasheet - ST Microelectronics

TDA4443 MULTISTANDARD VIDEO IF AMPLIFIER

The TDA4443 is a Video IF amplifier with standard switch for multistandard colour or monochrome TV sets, and VTR’s. DIP16 (Plastic Package) ORDER CODE : TDA4443 PIN CONNECTIONS IF INPUT STANDARD SWITCHING GROUND IF AGC TIME CONSTANT DELAYED TUNER AGC OUTPUT TUNER AGC ADJUST GATING PULSE INPUT REF.

TDA4443 MULTISTANDARD VIDEO IF AMPLIFIER . . . . . . . . . . . . . SWITCHING OFF THE IF AMPLIFIER WHEN OPERATING IN VTR MODE DEMODULATION OF NEGATIVE OR POSITIVE IF SIGNALS. THE OUTPUT REMAINS ON THE SAME POLARITY IN EVERY CASE IF AGC AUTOMATICALLY ADJUSTED TO THE ACTUAL STANDARD TWO AGC POSSIBILITIES FOR B/G MODE : 1. GATED AGC 2. UNGATED AGC ON SYNC. LEVEL AND CONTROLLED DISCHARGE DEPENDENT ON THE AVERAGE SIGNAL LEVEL FOR VTR AND PERI TV APPLICATIONS FOR STANDARD L : FAST AGC ON PEAK WHITE B.

TDA4443_STMicroelectronics.pdf