To: Peter V who wrote (50339 ) 11/25/2000 9:26:53 AM From: John Rieman Read Replies (1) | Respond to of 50808 The TV/COM chips........................................techweb.com November 20, 2000, Issue: 1238 Section: Semiconductors C-Cube offers complete solution -- Company moves beyond video with new MultiLynx chip family Bruce Gain Video-IC pioneer C-Cube Microsystems Inc. is staking out new territory in the broadband-communications arena through the introduction of a device designed to allow set-top boxes to transmit and receive video, voice, and data over cable networks. The MultiLynx chip family, which debuts today, marks the culmination of a strategy shift begun when C-Cube purchased TV/Com International, San Diego. "We have historically been video-oriented in the digital domain. Here, we're taking analog RF signals to convert into bitstream," said Brian Johnson, a strategic marketing manager at C-Cube, Milpitas, Calif. "Our customers are looking for complete system-on-a-chip solutions, so it was natural for us to provide them with front-end technology in addition to our back-end offerings." The technology allows C-Cube to integrate more capabilities onto a single piece of silicon, Johnson noted. "We can now offer a single-chip set-top-box road map. Without the communications chip, we wouldn't have been able to do that," he said. The MultiLynx CL2151 and CL2161, which can accommodate two-way broadband cable networks using DOCSIS, EuroDOCSIS, and DVB in-band cable-modem standards, integrate a QAM demodulator with an ADC for the downstream channel, and a QAM/QPSK modulator with a DAC for the return channel. An integrated communications processor and dedicated media-access controller (MAC) provide support for cable-network standards. The communications processor also acts as the host CPU and includes DSP extensions to support voice-over-Internet protocol (VoIP) codec algorithms simultaneously. This component connects directly to subscriber- line interface circuits to complete a VoIP implementation. The CL2151 is the first cable-modem chip designed specifically for set-top boxes, according to C-Cube. While similar to the CL2161, the CL2151 adds a second QAM demodulator for simultaneous digital video and data transfer. In addition to the protocols supported by the CL2161, the CL2151 supports DAVIC, DVS-178, Starvue, and DVS-167 set-top MAC protocols. It also provides direct connection to a POD (point of deployment) module for OpenCable set-top designs, and includes interfaces for integration with CPUs such as PCI, PowerPC, and SH4 devices. The MultiLynx's front-end modulation/demod-ulation technology has been on the drawing board for some time, according to Arun Veerappan, an analyst at Robertson Stephens Inc. in San Francisco, which underwrote C-Cube's initial public offering. "C-Cube has taken the technology team from TV/Com International and used its own architecture, in terms of understanding the set-top box, and developed a good front-end chip to work in conjunction with their back-end chip," Veerappan said. "The goal is to capture the most silicon content within any system. And that's what they're doing here." The CL2151 and CL2161 are currently sampling, and production volumes will be available in the first quarter of 2001. The CL2151 is supplied in a 308-pin BGA package and is priced at $30 in 100,000-piece quantities. The CL2161 comes in 208-pin PQFP packaging and is availableat $25 in 100,000-piece quantities.ebnonline.com Copyright ® 2000 CMP Media Inc.