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DOCSIS 3.1 chipset for broadband modems, video gateways

Posted: 06 Aug 2015 ?? ?Print Version ?Bookmark and Share

Keywords:STMicroelectronics? DOCSIS 3.1? chipset? FD-SOI? network?

STMicroelectronics has announced a DOCSIS 3.1 chipset for broadband CPE cable modems, embedded media terminal adapters (eMTAs) and gateways, as well as for video gateways when associated to set-top-box chipsets. The STiD325 is fully compliant with the DOCSIS 3.1 specification, featuring two 196MHz OFDM downstream channels; 32 single-carrier DOCSIS 3.0 QAM downstream channels; two 96MHz OFDM-A upstream channels; an 8 single-carrier DOCSIS 3.0 QAM upstream channels.

DOCSIS 3.1 has been engineered by CableLabs to allow multi-gigabit data transport on existing Hybrid Fibre-Coax (HFC) networks through improved spectral efficiency using OFDM multi-carrier modulation combined with low-density parity-check-based Forward Error Correction.

ST has contributed to the standards and participated in all Acceptance Test Plan development committees and Interoperability tests. Codenamed Barcelona, the high performance chipset relies on multiple 64bit ARM CPUs to deliver over 10K DMIPS, with line-rate networking support on every port, and hardware acceleration for routing and switching. It will allow multiple system operators (MSOs) to build future-proof CPE platforms with plenty of headroom to support the field introduction of new services. Its flexible architecture facilitates independent software development and software upgrades with minimal coupling between stacks, as well as the introduction of new features such as home surveillance and home automation; and support of various WiFi configurations.

The chipset is built on 28nm FD-SOI silicon technology, providing outstanding power efficiency at all operating levels, including fan-less designs, along with highly-efficient RF and analogue integration. Now sampling to lead customers, Barcelona comes with pre-integrated RDK-B software, including DOCSIS and Packet-Cable stacks.

- Julien Happich
??EE Times Europe

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