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MAX7481, MAX7482
Bidirectional Video Filters/Buffers for Composite and S-Video Portable Media Devices

Complete Bidirectional Anti-Aliasing and Reconstruction Filters Enable Y/C and CVBS Connector Sharing in Portable Media Devices

Not Recommended for New Designs
Part Number Replacement Explanation
MAX7481ETI n/a This part remains available but is not recommended for new designs.
MAX7482ETI n/a


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Data Sheet
FULL DATA SHEET (PDF, 868kB)
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Description

The MAX7481/MAX7482 bidirectional video filters/buffers provide the reconstruction filter and line drive buffer for both composite (CVBS) and S-Video (Y/C) video signals in playback mode, and anti-aliasing in record mode for portable media devices. Each channel consists of a lowpass filter and an output buffer capable of driving a full 2VP-P video signal into one standard 150 load (DC-coupled to ground). In record mode, the MAX7481/MAX7482 output buffers have a gain of +6dB. In playback mode, the MAX7481 output buffers have a gain of +6dB and the MAX7482 output buffers have a gain of +7dB.

The MAX7481/MAX7482 feature DirectDrive™ by utilizing an internal negative charge pump and regulator to maintain the output blanking level at ground, eliminating the need for a negative supply voltage, a large output coupling capacitor, or a sag correction configuration.

The MAX7481/MAX7482 operate from a single +2.7V to +3.6V power supply. These devices are available in a space-saving 28-pin TQFN package and operate over the -40°C to +85°C extended temperature range.

Key Features   Applications/Uses
  • Composite and S-Video, Video-Playback and Video-Record Interface for Portable Video Devices
  • Saves Space by Sharing Connectors in Portable Devices
  • DirectDrive
    • Eliminates Expensive AC-Coupling Capacitors
    • Blanking Level at Ground with Single Supply
  • Composite and Y/C Signals
  • Advanced Power-Down Modes for Extended Battery Life
  • Low Supply Current in Shutdown Mode, < 1µA (typ)
  • Filter Response Ideal for NTSC and PAL
  • +6dB (MAX7481) or +7dB (MAX7482) Gain
  • +2.7V to +3.6V Single-Supply Operation
  • Small, 28-Pin, TQFN Package (5mm x 5mm)

 
  • Digital Camcorders
  • Digital Cameras
  • Portable Media Devices

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    Design Guides
  • VIDEO (PDF)

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    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-4 of 4

    MAX7481 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX7481ETI  



    -40°C to +85°C See data sheet
    MAX7481ETI-T  



    -40°C to +85°C See data sheet
    MAX7482 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX7482ETI  



    -40°C to +85°C See data sheet
    MAX7482ETI-T  



    -40°C to +85°C See data sheet

    More Information
  • New Product Press Release 2006-12-18 

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    Document Ref.: 19-0671; Rev 0; 2006-11-09
    This page last modified: 2006-11-16




             


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