CMOS DAC supports data conversion at 2Tbit/s for optical links
September 09, 2011 // Julien Happich
Fujitsu Semiconductor Europe announces its first- generation 8-bit, 4-channel DAC in 40nm CMOS technology. With a sampling rate range of 55 to 65 GSample/s per channel, a small footprint and low power (0.75W/channel), this technology supports long-haul optical transport systems providing data links of 100Gbit/s and higher over a single lambda.
The advantage of having such high-performance converters in standard CMOS process technology is that it allows their integration on a single die together with a complex DSP and high-speed serial OTN framer interfaces to form a 100Gbps DP-QPSK transceiver. For such a device with 4 ADC and 4 DAC channels running at 65GSample/s, the sheer volume of data (2 Tbps) being converted to and from the analogue to the digital domain dictates a single die solution. Management of skew among the four signal component lanes is done in the digital domain allowing precision control that is very stable across processing, temperature or voltage variations in the transceiver device. Signal processing in the digital domain allows for compensation of non-linearities in the transmit optics chain, as well as mitigating signal reflections at the device IOs. Integration of the 4-channel DAC into a transceiver device also removes the requirement for a separate multiplexer/encoder device.
Visit Fujitsu Semiconductor Europe at www.emea.fujitsu.com/semiconductorAll news
Switch to LED lighting cuts cruising energy costs by 60 percent
February 27, 2015
Europe’s leading holiday cruise company, Costa Cruises has upgraded ten of the company's fleet of cruise liners with more ...
Semitrex' ultimate goal: "one size fits all" power conversion
Porsche rainmaker advocates platooning
Radar-based sensor network helps drivers finding a parking spot
Xilinx flexes its muscles in the ADAS arena
The future of custom ASICs
February 26, 2015
With the prevailing view that Moore's Law is slowing Donnacha O’Riordan, director of services strategy for S3 Group, gives ...
Dual nanowire structure absorbs light efficiently
5 trends to watch at Mobile World Congress
Infineon: CAN FD success goes at the expense of FlexRay
- Software-Defined Radio Handbook
- A Four-Quadrant DC/DC Switching Regulator Smoothly Transitions from Positive to Negative Output Voltages for FPGA and Other Applications
- LED Driver with Integrated Spread Spectrum Reduces EMI without Adding Flicker
- Accelerate SDN and NFV with Off-the-Shelf Software
InterviewInfineon: CAN FD success goes at the expense of FlexRay
The faster version of the venerable CAN bus, CAN FD is currently taking off at several carmakers. Infineon's Thomas Böhm, Head of Body / Automotive, believes this could well go at the expense of FlexRay. ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
To ensure you have a good start in 2015, Freescale is giving away five of its QorIQ TWR-LS1021A Tower system modules, worth USD269 each, for EETimes Europe's readers to win.
The module is the most feature-rich and high-performance Tower system offered by Freescale, enabling compatibility and interoperability with the growing list of Tower expansion modules, offering an easily accessible...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.