G.fast transformers can be used with Broadcom's chipsets

Posted By : Siobhan O'Gorman
G.fast transformers can be used with Broadcom's chipsets

 

Pulse Electronics has introduced its new family of G.fast functional isolation transformers. The BX4500LNL and BX4500LNLT transformers can be matched with a Microsemi line driver and used with Broadcom's BCM652xx DSP and BCM659xx AFE chipsets for G.fast transmission, Le87282. 

Operating bandwidth is 2MHz to 100MHz with target speeds up to 1Gb/s to consumer residences. These transformers enable Broadcom's chipsets to deliver high-speed broadband access for broadcast quality multi-stream IPTV, voice, data and home networking.

The G.fast transformers are built on a very small platform of 8x8x10mm with a low leakage inductance of less than 0.4µH. G.fast is the newly approved ultra-broadband DSL standard from the ITU for local loops shorter than 500 metres and is expected to deliver up to 1Gb/s to consumer residences, ITU-T G.9701.

Pulse Electronics' BX4500LNL transformer is packaged in trays while the BX4500LNLT is packaged in tape and reel. They are EN60950 functional isolation compliant 250Vrms and RoHS-6 compliant SMD products.

"These transformers have improved longitudinal balance and provide excellent total harmonic distortion performance on a very compact platform," said Ronan Kelly, Product Marketing Manager, Pulse Electronics. "The G.fast series supports Broadcom's chipset technology to drive data rates up to 150Mbps/downstream and 100Mbps/upstream on a single line."

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