SEMTECH COMPLETES ACQUISITION OF GENNUM - Press Release

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GT4123B

Overview

The GT4123B is a monolithic dual-channel video multiplier for use in a wide range of applications including broadcast and multimedia.

Featuring two wideband video inputs and a single control input, the GT4123B achieves broadcast quality mixing of two video input signals to a single output by implementing the function:
VO = [ ( VC x VA ) + (1 - VC ) x VB ]
where V C is the control input voltage, which may be varied continuously over the range 0V to 1V, and VA and VB are the video input signals.

The GT4123B is a low power version of the GT4123 and GT4123A Video Multipliers which operates from ± 5V supply voltages and typically draws only 15mA of current.

Features/Highlights

  • Two-quadrant video multiplication
  • Operation from ±4.5V to ±13.2V supply voltages
  • 20MHz ±0.1dB video & control channel bandwidth

  • Ultra low differential gain & differential phase
  • Convenient 8 pin package

Key Applications

  • Multimedia Graphics Overlay
  • Production Switchers
  • Linear Keyers

Ordering Information

Part No

Package

GT4123BCKAE3

8 pin SOIC

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