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MFG:GENNUM  Package Cooled:SMD16  D/C:03  

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Part Number: GT4122

 

MFG: GENNUM

Package Cooled: SMD16

D/C: 03

Description: The GT4122 multiplier is a monolithic dual-channel, broadcast quality video mixer. Featuring two wideband video...


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GT4122 General Description


The GT4122 multiplier is a monolithic dual-channel, broadcast quality video mixer.

Featuring two wideband video inputs and a single control input, the GT4122 achieves high quality video mixing of the two video input signals to a single output by implementing the function:

VOUT = VA • VC + VB (1 - VC)

where VC is the control input voltage, which may be varied continuously over the control range and VA and VB are the video input signals.

The GT4122 operates with power supply voltages of ±10 volts and typically draws 24 mA of current. The GT4122 is available in a 20 pin DIP and 20 pin SOIC packaging.

An Application Note entitled 'Using the GT4122 and GT4124 Video Mixer ICs' (Gennum Document 520-44) is available from Gennum Corporation.

GT4122 Maximum Ratings

PARAMETER VALUE
Supply Voltage (VS)
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10 Sec)
Video Input Voltage (VA,VB) to ground
Control Input Voltage (VC) to ground
Video Input Differential Voltage (VA - VB)
Control Input Differential Voltage (VC -VREF)		 ± 13.5 V
0 TA70
-65 TS15
260
± 5 V
± 5 V
± 5 V
± 5 V

GT4122 Features

• broadcast quality video multiplier
• 30 MHz at -1.0 dB video and control channel bandwidth
• one external frequency compensation adjustment
• ultra low differential gain and differential phase, (typically 0.01 % and 0.01 deg.)
• external DC offset and span trims
• 20 pin PDIP and SOIC packaging

GT4122 Typical Application

• Production switcher video mixers
• Linear Keyers

GT4122 Connection Diagram

GT4122 Connection Diagram

GT4122 datasheet

GT40G121
PDF/DataSheet Download

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