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DirectDrive® Video Amplifier with Reconstruction Filter

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • DC-Coupled Output
  • Direct Connection to Video DAC
  • Video Output Black Level Set to Ground
  • Video Reconstruction Filter with 50dB Attenuation at 27MHz
  • Preset Gain
    • 6dB (MAX9503G)
    • 12dB (MAX9503M)
  • 10nA Shutdown Supply Current
  • 2.7V to 3.6V Single-Supply Operation

Applications/Uses

  • Digital Still Cameras
  • Mobile Phones/Smartphones
  • Portable Media Players
  • Security Cameras
  • Space-Constrained, Low-Power Portable Devices

Description

The MAX9503 filters and amplifies standard-definition video signals. Maxim's DirectDrive technology eliminates large output-coupling capacitors and sets the video black level to ground. The input of the MAX9503 can be directly connected to the output of a video digital-to-analog converter (DAC). The MAX9503 provides a compact, integrated, and low-power solution.

An internal reconstruction filter smoothes the steps and reduces the spikes on the video signal from the DAC. The reconstruction filter typically has 3dB attenuation at 9MHz and 50dB attenuation at 27MHz, and ±1dB passband flatness to 5.5MHz.

Maxim's DirectDrive uses an integrated charge pump and a linear regulator to create a clean negative power supply to drive the sync below ground. The charge pump injects so little noise into the video output that the picture is visibly flawless.

The MAX9503 is available with +6dB (MAX9503G) and +12dB (MAX9503M) gains. The device operates from a 2.7V to 3.6V single supply and features a 10nA low-power shutdown mode.

The MAX9503 is offered in space-saving 16-pin QSOP and 16-pin TQFN packages and is specified over the -40°C to +85°C extended temperature range.

Simplified Block Diagram

MAX9503: Block Diagram MAX9503: Block Diagram 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 .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.