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Low-Cost, 6-Channel SD Plus HD/SD Selectable Video Filters and Buffers

Low cost 6-channel SD plus SD/HD selectable video filters optimized for consumer applications

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • Three Selectable 6th-Order 9MHz/33MHz (SD/HD) Filters
  • Three Fixed 5th-Order 9MHz (SD) Filters
  • +6dB Output Buffers
  • Transparent Input Clamp
  • AC- or DC-Coupled Inputs
  • AC- or DC-Coupled Outputs
  • 0.8dB Peaking Passband Response (MAX11507) on Three SD-Only Channels
  • Output Buffers Drive a Standard 150Ω Video Load
  • Single +5V Power Supply
  • Lead-Free 16-Pin QSOP Package

Applications/Uses

  • Cable and Satellite Set-Top Box Receivers
  • Digital Video Recorders (DVRs)
  • DVD Players
  • HD Recorders
  • HDTVs
  • Personal Video Recorders
  • SDTVs
  • Video On-Demand

Description

The MAX11506/MAX11507 integrated filters offer six channels, three for standard-definition (SD) video and three for either SD or high-definition (HD) video, and include +6dB output buffers on each channel. These video filters are ideal for anti-aliasing and DAC smoothing in applications such as set-top boxes, digital video recorders, DVD players, and personal video recorders.

The MAX11506/MAX11507 video inputs feature a transparent clamp compatible with AC- and DC-coupled input signals and allow DAC outputs to be directly coupled. The filters provide -3dB bandwidth of 9.0MHz for the SD filters and 33MHz for the HD filters. Each channel includes an output buffer with a gain of +6dB capable of driving a full 2VP-P video signal into a 150Ω video load. The buffers drive either AC- or DC-coupled loads and assure a blanking level of below 1V after the backmatch resistor. DC-coupling eliminates bulky coupling capacitors.

The MAX11506 offers a flat passband while the MAX11507 features 0.8dB peaking on the three SD-only channels to compensate for system roll-off. The MAX11506/MAX11507 operate from a single +5V supply and are available in the 0°C to +70°C commercial temperature grade. The MAX11506/MAX11507 are offered in the 16-pin QSOP package.

Simplified Block Diagram

MAX11506, MAX11507: Typical Operating Circuit MAX11506, MAX11507: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .