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Microtune adds wideband upstream amp

Mon, 11/17/2008 - 7:30am
Brian Santo

Microtune has introduced a new upstream amplifier for DOCSIS 3.0 modems with an improvement that at first glance might sound technologically esoteric but is important for giving MSOs greater flexibility in implementing DOCSIS 3.0 services.

First and foremost, the new MT1570 upstream amp enables a 120 Mbps upstream pipeline for DOCSIS 3.0 services.

Microtune’s wideband tuners, companion products to the new MT1570 upstream amplifier, operate to a bandwidth of 96 MHz. The MT2170 enables a cable operator to bond four non-contiguous channels across any 16 channels in a 96 MHz IF bandwidth, providing maximum flexibility for DOCSIS 3.0 data implementations at minimal cost.

The amps have a range of 5 MHz to 85 MHz.

wideband upstream amp

The new amps, along with Microtune’s tuners, can be designed into single- or multi-tuner configurations, Microtune said, to produce scalable data and IP video pipelines for four-by-four, eight-by-four and larger downstream/upstream solutions. This capability translates into triple-digit speeds from 160 Mbps to 320 Mbps downstream and 120 Mbps upstream. 

Microtune says its tuners are in all 12 DOCSIS 3.0 modems available (from 8 different vendors) to date.

Comcast has plans to make up to 20 percent of its footprint DOCSIS 3.0 ready by the end of 2008, and to expand in 2009; that’s on the CMTS side – Comcast has said little yet about how rapidly it expects to distribute DOCSIS 3.0 modems and rollout DOCSIS 3.0 services. Time Warner Cable is also planning to rollout DOCSIS 3.0 in 2009. In Japan, J:Com is already aggressively rolling out DOCSIS 3.0 services.

Microtune has several models of the upstream amp. The MT2170 and MT1570 are available as an RF kit solution, which is available now and is priced at less than $5 in volume.

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