Product category:
Analogue and Mixed Signal ICs
News Release from: Fairchild Semiconductor | Subject: ML6416
Edited by the Electronicstalk Editorial
Team on 31 August 2001
Active filter aids image reconstruction
New from Fairchild Semiconductor the ML6416 integrated active video filter is optimised for the performance requirements of the DirecTV Network.
New from Fairchild Semiconductor the ML6416 integrated active video filter is optimised for the performance requirements of the DirecTV Network The ML6416 offers a low cost monolithic alternative to discrete solutions
This article was originally published on Electronicstalk on 28 Feb 2001 at 8.00am (UK)
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The ML6416 provides reconstructive filtering and chroma/luma delay compensation to improve the quality of television pictures.
The device removes the artifacts introduced by D/A conversion and adds chroma/luma delay compensation to mimic the distortion introduced at the transmitter.
In addition, the ML6416 contains an audio trap to notch out video from the FM audio carrier.
The ML6416 is a high performance 7.1MHz Y/C 4th-order Butterworth lowpass filter with outputs capable of driving 2V pk-pk AC-coupled 150ohm loads.
The filter contains a summing circuit to generate filtered composite video and an audio trap to notch out video for the addition of the FM audio carrier.
The chroma/luma delay compensation advances the chroma by 170ns typically between 400kHz and 3.38MHz.
The ML6516 includes AC-coupled inputs and a DC restoration circuit for low tilt.
The inputs are Y, C (S-video) and include sync tips clamps and anti-clipping circuits.
The filtered outputs are AC coupled Y, C and composite video (CV) with 42dB stopband attenuation at 27MHz and better than 1dB flatness to 4.5MHz on Y, C and CV.
The ML6416 is offered in a space saving 8-pin SOIC package.
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