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Low power analog video decoder eliminates the need for external op amps

Low power analog video decoder eliminates the need for external op amps

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By eeNews Europe



The TW9990 video decoder is ideal for automotive rear camera displays and other camera systems.

The TW9990 video decoder is a low power analog video decoder that supports NTSC/PAL/SECAM single-ended, differential, and pseudo differential composite video inputs as well as S-Video. A single 27 MHz crystal is all that is needed to decode all analog video standards. Typical power consumption is approximately 100 mW for composite inputs. A power-down mode further reduces consumption.

Most automotive analog cameras are cabled as differential twisted pair to reduce common mode noise. Traditional analog video decoders only support single-ended inputs, meaning automotive system designers must place a video op amp in front of the decoder to convert differential signals to single-ended.

The TW9990 video decoder eliminates the need for the external op amp and the associated cost, as it supports differential composite video signals directly, and has built-in programmable short-to-battery and short-to-ground detection. This is an essential functionality required by OEMs when supporting a differential signal input.

Availability and Pricing

The TW9990 video decoder is available now in a compact 32-lead 5×5 mm WFQFN in bulk tray packaging at $2.60 each in 1,000-units quantities. It is also offered in tape and reel packaging at $2.65 each. A user friendly evaluation board, TW9990-NA1-GR-EVAL, is also available for $599.

More information TW9990 video decoder at
www.intersil.com/products/TW9990

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