Electronic Design

1.2 GHz Power Doubler Amplifier Supports DOCSIS 3.1

GaN-based power doubler amplifier increases effective downstream data rates from 160 Mb/s to 10 Gbit/s, and upstream data rates from 120 Mb/s to 1 Gbit/s.

RFMD's GaN-based RFCM3316 power doubler amplifier allows cable operators and MSOs to upgrade existing CATV infrastructure to meet the requirements of the new DOCSIS 3.1 standard, increasing effective downstream data rates from 160 Mb/s to 10 Gbit/s, and upstream data rates from 120 Mb/s to 1 Gbit/s when compared to DOCSIS 3.0. Due to the high output and gain benefits, cable operators can upgrade their existing equipment within current locations. Operating from 40 to 1200 MHz, the amplifier provides a high output level of 60 dBmV under a 1.2 GHz channel loading with < 10-10 BER and 42 dB MER and -80 dB CTB and -80 dB CSO. The surface mount multi-chip module saves about 50% in board space compared to traditional SOT115J packages, while maintaining excellent linearity and ruggedness. Due to the efficient nature of the GaN process, the product can also operate at 20% less current than Gallium Arsenide-based products at a comparable distortion level. The RFCM3316 is now sampling with volume production expected in the first quarter of 2014.

RF MICRO DEVICES INC.

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