- ADI’s ADA4424-6 reconstruction filter with on-chip charge pump requires only a +3.3-V supply to deliver excellent component video characteristics in today’s performance-driven consumer multimedia equipment.

Norwood, MA (10/20/2009) - Analog Devices, Inc. (ADI), a global leader in high-performance semiconductors for signal-processing applications, today introduced a high-performance 6-channel video reconstruction filter that allows designers of consumer media players and professional video systems to easily filter and drive video signals ranging from standard to high definition. The ADA4424-6 features three SD (standard definition) and three ED/HD (enhanced/high definition) channels and an exceptionally flat frequency response, providing 0.1-dB passband flatness with no peaking, which is required by 1080p high-definition-compliant media players and recorders.

The luma channels of the ADA4424-6 feature four distinct modes for detecting and cancelling dc-input offset voltages up to 1.1 V, and there is no dc offset at the output pins. The ADA4424-6 fully supports S1/S2 signaling defined by the EIA CPR-1202 specification and the D-connector interface defined in EIAJ CP-4120 standard.

The new filter’s SD channels operate flat to 6.75 MHz and include two fifth-order Butterworth filters for SD filtering. The SD section also includes internal summation of Y/C channels for composite-video baseband signal output. The ED/HD channels are composed of three fifth-order Butterworth filters and operate within +0.1 dB peaking typically, out to 13.5 MHz and 30 MHz.

The new filter features an integrated charge pump that allows the outputs to swing up to 1.4-V below ground, eliminating the need for large coupling capacitors. The output drivers on the ADA4424-6 feature rail-to-rail outputs with a fixed gain of 6.2 dB. Each output is capable of driving two double-terminated 75-ohm cables simultaneously. The filter/buffer section operates from a single 3.3-V supply. The device includes a dedicated 5-V supply pin used for D connector and S1/S2 signaling support.

Availability and Pricing

Sample Availability
Temperature Range
Price Each
per 1,000
−40°C to +85°C
38-lead TSSOP

For more product information For information on ADI’s video filters, buffers and amplifiers, visit

About Analog Devices

Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged industry-wide as the world leader in data conversion and signal conditioning technology, Analog Devices serves over 100,000 customers, representing virtually all types of electronic equipment. Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices is included in the S&P 500 Index.

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Editor's Contact Information:

Bob Olson

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