Broadcom announced its second generation DOCSIS/Euro-DOCSIS 3.0 silicon. The new design supports up to eight downstream DOCSIS channels. Broadcom said its new BCM3380 family is the first set of DOCSIS 3.0 silicon solutions that are truly single-chip, requiring only memory to provide complete DOCSIS functionality. The new SoC family integrates a flexible QAM receiver with split wide-band tuners that do not have the channel lineup limitations of single frequency window solutions. An integrated multi-channel upstream power amplifier eliminates the need for any external power amplifiers, and integrated Gigabit Ethernet and USB transceivers reduce the cost of external components. The BCM3380 provides compatibility with prior DOCSIS 2.0, 1.1 and 1.0 specifications and go well beyond the DOCSIS 3.0 specification to provide advanced features such as bonding support for up to eight simultaneous DOCSIS channels. Sampling is now underway to early access customers and includes solutions for data cable modems, voice cable modems and gateway modems. Complete reference designs are available.
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