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Microtune upstream amplifier supports DOCSIS 2.0

Posted: 23 Dec 2002 ?? ?Print Version ?Bookmark and Share

Keywords:microtune? microstreamer? mt1560? rf upstream amplifier? cable modem amplifier?

The MicroStreamer MT1560 RF upstream amplifier from Microtune Inc. is engineered to support the upstream bandwidth capacity of CableLabs' DOCSIS 2.0 cable modem specification and is suitable for cable broadband applications multimedia, VoIP, peer-to-peer networking, online gaming, video-on-demand, and videoconferencing.

Available in a 5-by-5mm, 20-pin MLF package, the amplifier functions as an RF signal booster for upstream communications, amplifying data signals from the user to the cable headend. The company claims that the IC meets the RF noise and in-band fidelity requirements of the DOCSIS 2.0, which deploys higher orders of modulation (32-, 64- and 128-QAM) to triple upstream bandwidth capacity.

The 3.3V device provides a peak output power of 67dBmV, HD3 of -55dBc (61dBmV, 65MHz), and a gain range of up to 59dB. It also offers a noise performance of -50dBmV (160kHz) to provide increased reliability, quality and integrity of the upstream data for jitter-free video, reduced latency in phone calls, and faster transmission of data.

In addition to the MT1560, Microtune also unveiled MicroStreamer MT1550, which is targeted for interactive STBs and low-cost DOCSIS 1.0 and 1.1 cable modems. The MT1550 offers the same features as the MT1560, but also integrates an on-chip anti-aliasing filter





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