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Small A/V decoder fits digital media devices

Posted: 09 Aug 2007 ?? ?Print Version ?Bookmark and Share

Keywords:A/V front-end decoder? stereo audio decoder? USB TV designs? DTV?

AVF 49x0B

Micronas U.S.A. Inc. has launched an advanced and fully integrated A/V front-end decoder dubbed the AVF 49x0B. The device is well suited for consumer devices such as personal video recorders, DVD recorders, STBs, PC-TV applications and video projectors.

The AVF 49x0B analog A/V decoder provides an extensive features and functional integration at very low power consumption. AVF 49x0B supports global analog broadcast TV video decoding and analog video input sources, including composite video, S-Video, component video and SCART RGB. The video data path features superior quality with its 10bit front-to-back video processing capability and up to eight video inputs that can be flexibly assigned to the composite and component video processing paths.

AVF 49x0B is claimed to master all worldwide audio broadcast TV standards with its stereo audio decoder for BTSC/SAP, A2, NICAM, AM and FM by interfacing directly with a wide range of tuners via standard sound-IF input. An integrated high quality stereo audio ADC provides a set of baseband audio inputs to complete the typical application input requirements. The integrated universal VBI data slicer supports data formats such as Teletext, closed captioning, CGMS, XDS and other formats. Combined with the choice of providing the VBI data either by merging it into the ITU-656 video output stream or via the I?C serial command interface makes the chip easy to integrate into virtually all platforms. Significant benefits of this offering include a tiny 9mm x 9mm 64 pin QFN package, an ultrasmall footprint designed for mobile designs, plus low power consumption of below 300mW with power management support. The AVF 49x0B also delivers exceptional audio quality and supports enhanced high-definition digital video formats of up to 1,080i resolution through its analog component video inputs. Applications like USB TV designs can now offer full-featured A/V decoding in popular small stick sizes.

The A/V decoder supports NTSC, PAL and SECAM standards. At the same time, through its 3D comb filter option, the device enables very high quality Y/C separation for composite video sources from either TV tuners or legacy consumer devices.

"The growing PVR market shifts from analog to hybrid, paying tribute to the emerging DTV standards. Analog cable TV broadcast remains to be widely deployed. Thus, analog A/V decoding remains a standard feature and continues to be in strong demand," said Kai Scheffer, director, marketing PC at Micronas. "With quality at the forefront of every design movement at Micronas, the AVF 49x0B addresses the market requirements for performance, size, quality, integration and system cost."

With new digital products entering the market today, customers are requiring quick and easy setup and operation. Developers are responding with solid performance and speedy development cycles and AVF 49x0B fits this requirement with its easy to integrate control interface, said Micronas.

The AVF 49x0B chips are now available in either the PQFN64 pin or MQFP128 pin package.

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