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Amplifier features linear reverse path variable gain

Posted: 03 Jul 2014 ?? ?Print Version ?Bookmark and Share

Keywords:amplifier? DOCSIS? reverse path?

M/A-COM Technology Solutions Holdings Inc. released an integrated two-stage differential amplifier designed for DOCSIS 3.0 and 3.1 reverse path infrastructure equipment.

The MAAM-011186 delivers 36dB MER performance loaded with 39 channels at 52dBmV per channel. Nominal power dissipation is a low 2.2W in a small 7mm PQFN package, which suits high density cards and compact system amplifiers.

The amplifier provides engineers who require a highly linear variable gain amplifier with a solution for network access equipment and head-ends in the Hybrid Fibre Coax system. This device offers 39dB of gain and 3dB of noise with 31.5dB attenuation range.

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MAAM-011186 functional diagram. Source: MACOM

"The MAAM-011186 greatly simplifies reverse path amplifier design by integrating 39dB of Gain with a 6bit digital step attenuator (DSA) in in a single 7mm PQFN package," said Graham Board, Product Line Manager, Networks and Wired Broadband. "This part will help to future proof systems by covering existing reverse path bands along with the new high band reverse path for DOCSIS3.1."

Covering 5MHz to 300MHz, this device delivers 22dB of input and output return loss. The device can function off either an 8V or 5V voltage supply to provide the ultimate versatility to the system designer.

Production quantities and samples of are available from stock. Engineers can download datasheets from the company's website.

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