Datasheet4U Logo Datasheet4U.com

TDA4453 Datasheet Video If Amplifier For Multistandard Tv Receiver And Vtr Appliances

Manufacturer: TEMIC Semiconductors (now Microchip)

Overview: TDA4453 Video IF Amplifier for Multistandard TV Receiver and VTR Appliances Technology:.

General Description

Pin 1,16 2 3,15 4 5 6 Function IF-input Standard switch: open B/G ground L Ground IF-AGC storage capacitor AGC (tuner control) Tuner AGC take over Pin 7 8,9 10 11 12 13 14 Function Not connected Demodulator circuit Average capacitor standard L Video output Not connected Supply voltage Not connected Circuit Description The following function units are integrated in this circuit combination for video-IF processing: D Video output amplifier with low-pass characteristics, limiter for ultra black and inverter for ultra white interference D Three symmetric, highly stable, gain controlled wideband amplifier, quasi galvanic coupling eliminates feed back D High impedance, interference free controlled voltage facilities, best possible AGC time constant with small storage capacitor D Video carri

Key Features

  • D Interference suppression D Standard B/G-L suitable, processes negatively and positively modulated IF-signals with equal polarity of the output signal D Fast AGC by controlled discharge of the AGC capacitor Standard L mode: AGC acting on peak white level, capacitor discharge control by averaged video signal Standard B/G: AGC acting on the sync. pulse peak D Ultra white inverter and ultra black limiter for reducing transmission interference D Internally noise protected gain control, no flybac.

TDA4453 Distributor