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Filters for High-Definition, Progressive-Scan, Standard-Definition, and Bypass Mode

Integrated 3-Channel Video Filters for High-Definition, Progressive-Scan, Standard-Definition, and Bypass Mode

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • Three Selectable 6th-Order 9MHz/16MHz/33MHz (SD/PS/HD) Filters
  • Bypass Mode for High Bandwidth Signals
  • Transparent Input Clamp
  • Output Buffers Drive a Standard 150Ω Video Load
  • ±12kV HBM ESD Protection on Outputs
  • AC- or DC-Coupled Inputs
  • AC- or DC-Coupled Outputs
  • +0.8dB Peaking Passband Response (MAX11509) in SD, PS, and HD Modes
  • Single +5V Power Supply
  • Lead-Free, 14-Pin TSSOP Package

Applications/Uses

  • DVD Players
  • DVRs
  • HD Recorders
  • HDTV
  • Personal Video Recorders
  • Video-on-Demand

Description

The MAX11508/MAX11509 integrated 3-channel video filters for high-definition (HD), progressive-scan (PS), standard-definition (SD), and bypass (BP) video include an output buffer with +6dB gain and are ideal for digital video disc (DVD) players, set-top box (STB) receivers, high-definition television (HDTV), digital video recorders (DVRs), and similar devices.

The MAX11508/MAX11509 video inputs feature a transparent clamp compatible with AC- and DC-coupled input signals and allow DAC outputs to be directly coupled, eliminating the need for bulky coupling capacitors. The filter bandwidths are selectable to HD, PS, and SD. A BP mode is provided for 1080p and high-bandwidth RGB signals. Selectable input bias circuitry on 2 filter channels offers simple connection to bipolar video signals such as C, Pb, and Pr.

The MAX11508 filters provide -3dB bandwidths of 9MHz (SD), 16MHz (PS), 33MHz (HD), and 60MHz (BP). The MAX11509 filters provide -3dB bandwidths of 10MHz (SD), 17MHz (PS), 34MHz (HD), and 60MHz (BP).

Each channel includes an output buffer with +6dB gain that provides 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. The shutdown mode provided reduces device current to 1µA (typ).

The MAX11508 offers a flat passband and the MAX11509 features +0.8dB peaking to compensate for DAC rolloff. The MAX11508/MAX11509 operate from a 5V power supply and operate over the upper commercial (0°C to +85°C) temperature range. The parts are offered in the 14-pin TSSOP package.

Simplified Block Diagram

MAX11508, MAX11509: Typical Operating Circuit MAX11508, MAX11509: 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 .