Author - Georgi Georgiev

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Georgi Georgiev	Write for Electronic Design
Georgi Georgiev is a development engineer with Wey Elektronik AG, Unterengstringen, Switzerland. He holds a Dipl. Ing. in computer science from the Technical University of Sofia, Bulgaria. Email address: Georgi.Georgiev@weytec.com
1 results found for Georgi Georgiev, displaying items 1 - 1

July 10, 2008 [Ideas For Design]
Create A 250-MHz Bandwidth Digital Potentiometer For Video Level Control
A circuit used to control the level of a video signal should have a 3-dB cutoff frequency of greater than 5 MHz for a television application or 100 MHz for a monitor application. CMOS-based digital potentiometers typically cannot be used as video devices because their frequency responses barely exceed 1 MHz. For such applications, a good choice would be a variable-gain amplifier (VGA) with analog or digital gain control. VGAs are offered...