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Dual-channel encoder improves MPEG-2 encoding quality

Milpitas, Calif. — At the National Association of Broadcasters (NAB) Show, Magnum Semiconductor Corp. has announced the DM8803 dual-channel MPEG-2 encoder, targeted at set-top box (STB) and personal video recorder (PVR) applications. The DM8803 is the newest member of Magnum's family of video encoders for high-volume hybrid set-top applications. It features a 3D comb filter for improved image quality, eliminating the visual artifacts that often result from poor analog signal (NTSC/PAL) acquisition and transmission.

Dual-channel encoders provide new features for set-top box and home media center designs. MPEG-2 encoding allows raw video signals to be compressed to storage, so that STBs can offer live pause and other PVR features, Magnum Semiconductor said. In addition, the dual-channel architecture lets user record one program while they watch another.

The DM8803 is said to deliver outstanding video quality by pre-processing the image with its TrueView Pro motion-compensated temporal filtering. This helps to remove motion artifacts from the image. The image is then compressed using Magnum's fifth-generation MPEG technology, and a 3D comb filter is used to remove “mosquito noise” from the picture. The result is the lowest-noise image in the industry and excellent video quality at the data rates common in set-top box applications, Magnum said.

The DM8803 accepts two standard 8-bit YUV video inputs, and is able to perform greater than 30 billion operations per second (30 BOPS) for dual audio and video compression. It delivers compressed video via a multi-program MPEG-2 transport stream. The device uses standard SDRAM, and features a USB port for expansion.

Pricing: $20 in quantities of 10,000.
Availability: Packaged in a 388 BGA, the DM8803 is available for samples and production orders.

Magnum Semiconductor , www.magnumsemi.com

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