The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The dedicated-foundry industry was established in 1987, with the incorporation of Taiwan Semiconductor Manufacturing Company (TSMC). Silicon-wafer production at foundries has increased significantly since that time, to account for over 20% of all wafer volume. Foundries are now an integral part of the overall semiconductor supply-chain. There is every reason to anticipate that the importance of the...
Innovation in analog and mixed-signal electronics becomes increasingly more important to the continued growth of the IC industry. Technologists working in the analog and mixed-signal arena certainly share, with their digital counterparts, the overarching goal of reducing power and cost-per-function in each IC generation. But they must also operate under physical constraints that, until recently, have...
Gone forever, are the days of smooth roadmap scaling, with its more-or-less-simple design rules, adequate supply voltages, and unimpeded circuit shrinkage. As scaling moved ahead to nanometer dimensions, things changed. Devices became more difficult to predict, and global performance degraded due to leakage and dispersion. One of the consequences of this deteriorating situation has been that increased...
A 4-wavelength DWDM optoelectronic transceiver, implemented in a 0.13mum CMOS SOI process, achieves an aggregate rate of 40Gb/s transmission over single fiber. The four channel WDM chip, operating all four Txs and Rxs in WDM configuration consumes -3.5W. This is at nominal operating conditions.
The design and experimental verification of a 20Gb/s CDR circuit based on injection-locking technique is presented. Fabricated in 90nm CMOS technology, this circuit achieves a BER of <10-9 for both continuous and burst modes. It has tunability of over 800Mb/s while consuming 175mW. The re-acquisition time of this CDR is 1b interval.
A 33.6-to-33.8 Gb/s burst-mode CDR circuit is realized in 90nm CMOS technology. The LC gated VCO, the phase selector the input matching circuit, and the wideband data buffer are discussed. With 2n-1 PRBS input, the measured rms jitter for the recovered data is 1.15ps at 33.72Gb/s. This CDR can tolerate 31 consecutive identical bits with a locking time of 0.2ns (<7b interval). It consumes 73mW from...
A selective internal reset mechanism that allows the burst-mode TIA to recover a burst-mode signal as a stand-alone device in EPON is discussed. Using step AGC, the TIA achieves a DR of 27dB and a sensitivity of -31dBm with a PIN photodiode. Moreover, with internal reset, the loud/soft ratio is also 27dB within 100ns guard and preamble times.
Combining the self-compensated topology with the negative-impedance-compensation technique, a differential TIA with enlarged input-capacitance tolerances is designed in a 0.18μm CMOS technology. The DR is measured to be >20dB without using any gain control. The complete TIA IC consumes 40mW from a 1.8V supply.
A 40Gb/s transimpedance-AGC amplifier is implemented in 90nm CMOS. The TIA uses reversed triple-resonance networks and negative feedback in a common-gate configuration. Operating at 40Gb/s, the amplifier provides 520 mVpp-diff output swing for a current range of 0.44 to 4 mApp, achieved by AGC. The integrated input-referred noise is 3.6muArms and the total power consumption is 75mW.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.