Dual SCART saves power, cuts component count in set-top boxes and A/V receivers

Maxim Integrated Products’ MAX9598 is a +3.3 V dual SCART solution for set-top boxes and A/V receivers. Offering two SCART connectors, it utilizes power-saving technique to significantly reduce power consumption. Additionally, the MAX9598 integrates the company's patented DirectDrive technology to prevent click-and-pop noise and eliminate the need for costly AC-coupling capacitors on the audio outputs.

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In short, MAX9598 is a switch matrix that eases routing of audio and video signals between an MPEG decompression chip and two external SCART connectors. The audio and video channels feature input-source-selection multiplexers, input buffers, and output buffers for routing all inputs to selected outputs. The MAX9598 integrates standard-definition video filters on all video encoder inputs, and all audio drivers deliver a full-scale (2.0Vrms, min) output. The device also integrates input-video-signal and video-load detection circuitry. Controlled through an I2C-compatible interface, the MAX9598 fully complies with the EN50049-1 SCART standard.

Key Features include 70 mW quiescent power consumption, 1.7 mW in low-power mode and 0.1 mW in shutdown mode, DirectDrive audio technology suppresses clicks and pops, input-video-signal and video-load detection, and video reconstruction filter with 10 MHz passband and 52 dB attenuation at 27MHz

The MAX9598 operates from standard +3.3 V and +12 V power supplies. And comes in a compact, 6 mm x 6 mm, 40-pin TQFN package. In 1000 pieces, pricing starts at $1.50 each.

www.maxim-ic.com

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© 2012 Penton Media Inc.


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