Silicon Labs Reduces Cost and Complexity of Coherent Optical Market Timing Technology

China, Beijing - April 26, 2016 - Silicon Labs (NASDAQ: SLAB) has introduced a series of jitter-attenuating clocks that simplify the 100G/400G Coherent OpTIcal Line Card and module design. Provides high frequency, flexible clocking solutions that significantly reduce system cost and complexity. Silicon Labs' new Si534xH coherent optical clocks provide low jitter reference timing for data converters, replacing discrete timing solutions that rely on expensive, large package size voltage controlled SAW oscillators (VCSOs). Unlike VCSOs that support only a single fixed frequency, the new Si534xH clock offers a wide frequency range, supports frequencies up to 2.7 GHz, and requires no changes to bill of materials (BOM) components.

The Si5344H and Si5342H clocks offer the best frequency flexibility and unmatched 50fs RMS jitter performance. These clock chips simplify the device procurement process and replace multiple VCSOs with long lead times that can be customized with a single clock IC solution with delivery times as short as two weeks. With jitter-attenuating PLLs, high-frequency output drivers, fractional-frequency synthesis, and digitally controlled oscillator (DCO) technology, the Si534xH family offers all the clocking required for coherent optical transceiver applications, a reduction of 40 compared to competing solutions. % occupied area and 40% power consumption.

One of the biggest drivers of growth in the communications market is the shift from 10G to 100G in the metropolitan area network and data center interconnect (DCI) sector. Coherent optics can be used in 100G and 400G applications because it enables service providers to send more data over existing fiber, reducing the cost and complexity of network upgrades for bandwidth expansion. Current timing solutions for coherent light have not been optimized in terms of cost and size, requiring a diverse mix of VCSOs, clock generators, and discrete devices.

Silicon Labs' Si534xH clocks are specifically designed to meet the timing requirements of 100G/400G coherent optical applications. In addition to supporting the ultra-high frequency synthesis required for timing in optical transceiver data converters, the Si534xH clock also integrates Silicon Labs' market-proven DSPLL® jitter attenuation technology with MulTISynth low-jitter fractional frequency synthesis technology, providing clever, easy-to-use Single chip solution. All 100G/400G transmitter or receiver clocks can be generated from a single chip, minimizing BOM cost and reducing complexity by eliminating a large number of discrete components.

James Wilson, senior director of marketing for Silicon Labs' timing products, said: "In order to meet the increasing bandwidth requirements, operators need 100G/400G coherent designs to achieve higher line card port density and lower bit cost than traditional solutions. Silicon Labs Compared to traditional VCSO-based solutions, the Si534xH clock product offers significantly reduced footprint and lower power consumption, providing the high frequency clock synthesis, jitter attenuation and rigor for coherent optical applications. Phase noise."

Silicon Labs' ClockBuilderProTM supports coherent clock development, an easy-to-use software tool that simplifies clock tree design, device configuration, and evaluation of detailed performance. The tool can generate chip profiles independently or directly control the Si534xH chip on the evaluation board. ClockBuilder Pro can also be used to create a factory-customized version of Silicon Labs jitter attenuators and clock generators to meet each customer's unique timing requirements.

Si534xH Coherent Optical Clock Product Features:

· Ultra-high performance jitter attenuating PLL for transmitter and receiver clocks;

· High speed driver for maximum 2.7 GHz data converter clock with ultra low phase noise;

· Typical 50fs RMS (1MHz to 40MHz) jitter performance;

· MulTISynth fractional frequency synthesis, which can generate any frequency up to 712.5MHz;

· Integrated loop filter and user-programmable PLL bandwidth for flexible jitter attenuation;

· High-speed, digitally adjustable DCO mode: 0.001ppb resolution, 1MHz SPI update rate;

· Suitable for modular size and power consumption;

· Easy to use ClockBuilder Pro software;

Price and availability

Samples of the Si5344H and Si5342H coherent optical clocks are available now in 7mm & TImes; 7mm 44QFN packages and are scheduled for volume production in May. When the purchase amount is 10,000 pieces, the unit price starts from 27 US dollars. Standard and custom chips can be delivered in a short period of time (samples take two weeks and production orders take four weeks), which simplifies prototyping and mass production. To simplify chip evaluation and system-level timing design, Silicon Labs also offers the Si5344H-EVB and Si5342H-EVB evaluation boards for $199.

About Silicon Labs

Silicon Labs, Inc. (NASDAQ: SLAB) is a leading provider of silicon, software and system solutions for the Internet, Internet infrastructure, industrial automation, consumer electronics and automotive markets. We address the challenges of the electronics industry and bring significant advantages to customers in terms of performance, energy efficiency, connectivity and minimalist design. Silicon Labs has a world-class engineering team with superior software and mixed-signal design experience, providing designers with the tools and technology they need to quickly and easily turn their initial ideas into the final product.

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