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ML6421 - Triple Phase and Sinx/x Equalized / Low-Pass Video Filter

General Description

The ML6421 monolithic BiCMOS 6th-order filter provides fixed frequency low pass filtering for video applications.

This triple phase-equalized filter with Sinx/x correction is designed for reconstruction filtering at the output of a Video DAC.

Cut-off frequencies are either 5.5, 8.0, or 3.0MHz.

Key Features

  • s s s s s s 5.5, 8.0, 9.3, or 3.0MHz bandwidth 1x or 2x gain 6th-order filter with phase and amplitude equalizer >40dB stopband rejection No external components or clocks ±10% frequency accuracy over maximum supply and temperature variation.

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Datasheet Details

Part number ML6421
Manufacturer Micro Linear
File Size 160.32 KB
Description Triple Phase and Sinx/x Equalized / Low-Pass Video Filter
Datasheet download datasheet ML6421 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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September 1999 ML6421* Triple Phase and Sinx/x Equalized, Low-Pass Video Filter GENERAL DESCRIPTION The ML6421 monolithic BiCMOS 6th-order filter provides fixed frequency low pass filtering for video applications. This triple phase-equalized filter with Sinx/x correction is designed for reconstruction filtering at the output of a Video DAC. Cut-off frequencies are either 5.5, 8.0, or 3.0MHz. Each channel incorporates a 6th-order lowpass filter, a first order all-pass filter, a gain boost circuit, and a 75Ω coax cable driver. A control pin (Range) is provided to allow the inputs to swing from 0 to 1V, or 0.5 to 1.5V, by providing a 0.5V offset to the input. The unity gain filters are powered from a single 5V supply, and can drive 1VP-P over 75Ω (0.5V to 1.5V), or 2VP-P over 150Ω (0.