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Anadigics debuts amp, tuner for DOCSIS 3.0 modems

Thu, 05/10/2007 - 8:48am
Brian Santo

Anadigics has introduced two chips that make up the RFIC element of DOCSIS 3.0 cable modems: a programmable gain upstream amplifier, and an integrated wideband data tuner.

Anadigics claims its ARA2017 is the first upstream amp available for DOCSIS 3.0. It delivers output power levels of +64 dBmV with very low (-55 dBc) harmonic distortion and output noise levels as low as -53.8 dBmV.

The company also says its AIT1061 has the smallest form factor (6 x 6 x 1 mm) of any current DOCSIS 3.0 tuner.

The chip integrates an upconverter, downconverter, VCO, synthesizer, IF amplifier, RF gain control and IF gain control.

The wide capture bandwidth of the AIT1061 tuner enables the simultaneous reception of multiple channels, and the linearity characteristics of both components in the chip set preserves the integrity of each channel. The company also warranted that the ARA2017 upstream amplifier's high output power capability and low voltage transients meet the DOCSIS standard's specs for power output.

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