Microwave Engineering Europe - April 2008 - (Page 35)

PRODUCTS 35 Single input, single output any-rate clock multiplier ideal for low jitter applications in base stations and comms equipment DSPLL® technology, which provides any-rate frequency synthesis and jitter attenuation in a highly integrated phaselocked loop (PLL) solution that eliminates the need for external VCXO and loop ﬁlter components. The chip provides superior frequency ﬂexibility compared to competing IC and quartz-crystal based devices given its ability to accept any frequency from 2 kHz to 710 MHz and generate any frequency from 2 kHz to 945 MHz and select frequencies to 1.4 GHz. Si5319 provides a cost-effective jitter attenuation solution for next-generation multi-rate line cards that must support a broad array of client-side and line-side interfaces, including SONET/SDH, 1G/10G Ethernet, Fiber Channel, OTN and HDSDI. The timing architecture is dramatically simpliﬁed because a single Si5319 can generate all required reference frequencies with extremely low jitter, eliminating the need for multiple high frequency VCXOs. Simplifying clock startup issues, the IC locks to an inexpensive crystal input at startup and switches to an active input clock when available. No external mux components are required and the clock switchover is seamless, minimizing output clock phase transients that would otherwise generate bit-errors in the high speed ﬁber optic interface. www.mwee.com/207000295 Silicon Laboratories has expanded its portfolio of reconﬁgurable, frequencyagile precision clocks to include a single input, single output jitter-attenuating clock multiplier IC. Designated Si5319, it is capable of generating any output frequency from either a crystal or reference clock input with 0.3 picoseconds jitter generation. The Si5319 supports a free-run mode of operation, enabling the device to be used as a frequency ﬂexible, low jitter clock generator when supplied a crystal input. It is ideal for providing clock synthesis, clock multiplication and jitter attenuation in high performance timing applications such as SONET/SDH/OTN line cards, WDM line cards, wireless base stations, synchronous Ethernet routers, test and measurement equipment and broadcast video. This Any-Rate Precision Clock is based on Silicon Labs’ patented, third generation LC Miniature Filters Small package. High volume. Right price. Large-scale production capabilities and custom design solutions that work for you – today and tomorrow. WiMAX “personality pack” programmable baseband processor technology targets silicon vendors Coresonic’s wireless modem hardware solution allows semiconductor manufacturers to quickly and costeffectively implement WiMax functionality into their devices. The company’s WiMAX “personality pack,” is based on the company’s LeoCore programmable baseband processor technology and provides complete IEEE802.16 functionality from the RF interface through to the central processor interface. This personality pack is the ﬁrst of a number of complete hardware solutions that Coresonic will be developing — other solutions will be announced for LTE, mobile media, short range communications, high speed short range communications, as well as legacy cellular systems. The WiMax personality pack supports the mobile WiMax 802.16e-2005 mobile system proﬁle rev 1.4, which will support other modes such as 802.16d and 802.16j. The pack performs everything from ADC/DAC interface to FEC, including digital front-end signal conditioning, synchronization, MIMO channel estimation/compensation, error correction and chase combing. All blocks provided enable a complete solution from the RF interface to interfacing to a CPU (central processor) to run the MAC layer; the processing intensive elements are implemented in hardware to minimize the load on the MAC CPU. www.mwee.com/206903933 To find out more, call (800) 344-2412 or visit www.trilithic.com. Microwave Engineering ● April 2008 ● www.mwee.com 035_MWEE.indd Sec1:35 28/03/08 11:25:09 http://www.mwee.com/207000295 http://www.trilithic.com http://www.trilithic.com http://www.mwee.com/206903933 http://www.mwee.com

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Microwave Engineering Europe - April 2008 News Contents Comment Test and Measurement: Comprehensive WiMAX and Wi-Fi Product Design Demands Effective Channel Emulation Military/Aerospace Focus: Hardware Needs Limit Software Radio Interview — Mitsubishi Electric Europe: GaAs Technologies Spanning High-End Space and Radar Through to Cost-Sensitive Handset and LNB Applications How Do You Test ZigBee Transmitters? Advanced Receiver Design Boosts Performance CMOS PAs Pave the Way for One-Chip Phones Products Calendar

Microwave Engineering Europe - April 2008

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