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3D comb filter targets analog, digital TVs

Posted: 24 Aug 2007 ?? ?Print Version ?Bookmark and Share

Keywords:3D comb filter? front-end processors? video processing systems? digital consumer electronics?

Toshiba America Electronic Components Inc. (TAEC) has introduced a second-generation, high-performance 3D comb filter front-end processor targeted at advanced analog and TVs, A/V systems, STBs and other video processing systems. Designated TC90103AFG, the highly integrated device provides a complete solution for analog-video processing. It integrates a 3D comb filter for NTSC, a multi-standard 3-line comb filter, 3D noise-reduction functions, a digital multi-standard decoder and 5 Mbits of embedded DRAM for frame-buffer memory in a compact 144-pin LQFP package.

"Our single-chip solution provides outstanding video quality with its high-quality, analog-video luma (Y) and chroma (C) separation, multistandard color decoding and YCbCr output in the digital domain," said Shardul Kazi, VP of ASSP business unit at TAEC. "The integration of embedded DRAM reduces design complexity and overall system cost while increasing reliability. "

Highlights of the TC90103AFG include the following:

TC90103AFG features built-in, high-performance 3D and three-line comb filters and 3D Y and C noise-reduction functions. For Y/C separation, if offers 3D YCS (3.58 NTSC), 3-line YCS (NTSC/PAL) and band-pass filter (SECAM) and for 3DNR: CVBS (3-line comb mode), S-video, YCbCr, RGB.

The chip integrates an adaptive digital multistandard color decoder. This multiformat decoder capability makes the chip suitable for use in a worldwide chassis. The chip also uses adaptive multistandard detection and sync processing

Aside from incorporates 5Mbits of embedded DRAM for frame-buffer memory, the TC90103AFG features 10bit and 8bit ADCs to support various input interfaces, including CVBS, S-Video, YCbCr and 10bit 4fsc digital CVBS. The device also has digital ITU-R656 and ITU-R601 output for high-quality pictures.

TC90103AFG integrates signal-/noise-level detection, data slice functions for world regions (ID-1, WSS, CCD) and a Macrovision signal-detection circuit, while also featuring analog automatic gain control (AGC) with sync AGC and peak AGC, and an RGB fast blanking mixer.

Other features include I2C bus control, picture-improvement functions and support for SCART interface and Gemstar G-guide.

Housed in a 144-pin LQFP (Pb-free) housing, TC90103AFG has a rated power supply of 3.3V, 2.5V and 1.5V. Samples are available now and the device is in full production. Pricing for the TC90103AFG starts at $10.

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