Assessment Task:
Digital Terrestrial Television DTT Engineering Assessment Answer 

Task Description

Design one passive filter and one op-amp based active filter for Digital Terrestrial Television (DTT) reception. The main purpose of the filters is for interference mitigation from adjacent 4G/LTE transmission. Discuss why and where (country/region) such a filter is needed. Define the specifications of the filters by considering a specific real-world application; i.e. frequency band, country, filter performance, etc. Identify a commercially available filter for comparison.

The filter should be compact and low cost. You may choose to design any type of active filter (eg: lowpass, highpass, bandpass, band reject) of any order (eg: first order, or higher-order Butterworth filter, etc). Justify why you have chosen the specific type and order of the filter.

Draw the schematic circuit diagram of the filter using any software of your choice (i.e. PSpice), labelling the component values and output voltage. The values of the components in your proposed filter should meet the set of requirements as you have defined. Sketch the Bode magnitude plot for the designed filter using any software of your choice (eg: Matlab or PSpice).

Provide a cost estimation for your designed filters. Discuss the cost and performance difference between the designed filters as well as with the commercially available filter.

 

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  • Uploaded By : Mitchell Lee
  • Posted on : December 18th, 2018

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