Product category:
Communications ICs (Wired)
News Release from: Micrel | Subject: 2.7Gbit/s AnyRate chipset
Edited by the Electronicstalk Editorial
Team on 22 February 2002
Chipset supports all datarates up to
2.7Gbit/s
A new chipset will enable telecomms manufacturers to support multiple metro area protocols and speeds on a single line card using a single 27MHz reference source.
Micrel Semiconductor has released the first 2.7Gbit/s AnyRate chipset family consisting of the SY87721L clock and data recovery (CDR), SY87724L mux/demux, and the SY87729L AnyClock fractional N synthesiser, operating at any rate and any protocol from 28Mbit/s to 2.7Gbit/s The AnyRate SY87721L CDR is capable of recovering data from serial streams running from 28Mbit/s up to 2.7Gbit/s, which is SONET OC-48 with forward error correction (FEC) datarates
This article was originally published on Electronicstalk on 5 Dec 2000 at 8.00am (UK)
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The SY87724L is a programmable data multiplexer and demultiplexer to 4, 5, 8 or 10bit at rates up to 2.7Gbit/s.
SY87729L AnyClock is the industry's first high performance fractional N synthesiser.
It generates any frequency from 10 to 365MHz within 400ppm from an inexpensive, single 27MHz reference source and exceeds Sonet jitter generation specification.
SY87729L enables the SY87721L CDR to lock to any possible frequency in its range.
The AnyRate chipset can handle all of the commonly used communications speeds and protocols including OC-3/STM-1, OC-12/STM-4, OC-48/STM-16 with or without FEC, Fast Ethernet, Gigabit Ethernet, FDDI, ESCON, FEC, Fibre Channel, 2x Fibre Channel, as well as digital video rates outlined in SMPTE 259 and 292.
It also supports proprietary rates that have emerged in the telecom world to enhance system performance and reliability.
"Metro area network communications system manufacturers must efficiently transport many protocols to enable multiservice platforms for their customers", said Zhong Li, product marketing manager.
"The AnyRate chipset, using the AnyClock fractional N synthesiser, enables them to build only one linecard with a low-cost, low-frequency reference input for all their protocol requirements.
It simplifies their designs, shortens time-to-market and greatly reduces the inventory they have to carry", Li said.
The AnyRate chipset can be used for transponders and section repeaters, multiplexers (add-drop and access), Sonet/SDH based transmission systems, terabit routers and broadband crossconnects, and fibre-optic test equipment for metro area applications.
The SY87721L is packaged in a 64-pin TQFP, SY87724L in an 80-pin LQFP and SY87729L in a 32-pin TQFP.
Samples of the three devices are available now, and production quantities are stock to 8 weeks.
The SY87721L, SY87724L and SY87729L are priced at $48.00, $66.00 and $38.40, respectively, in 1000-piece quantities.
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