By Paul Muller, Yusuf Leblebici
Whereas the throughput of microprocessor platforms has a tendency to extend due to ongoing know-how scaling and the appearance of multi-core structures, the off-chip I/O communique bandwidth emerges as one of many strength bottlenecks that restrict performance. which will alleviate the conversation velocity constraints, optical facts communique interfaces movement ever in the direction of the processor center. it's broadly anticipated that destiny new release electronic platforms will more and more depend upon chip-to-chip and board-to-board optical information communications for larger bandwidth and higher noise immunity.This publication makes a speciality of optical communications for brief and extremely brief distance functions and discusses the monolithic integration of optical receivers with processing parts in regular CMOS applied sciences. CMOS Multi-Channel Single-Chip Receivers for Multi-Gigabit Optical information Communications offers the reader with the required heritage wisdom to totally comprehend the trade-offs in short-distance verbal exchange receiver layout and provides the main matters to be addressed within the improvement of such receivers in CMOS applied sciences. in addition, novel layout ways are awarded. A system-level layout method makes it possible for the impression research of other block necessities and system-wide layout optimization. Statistical types are used for layout area exploration within the scope of jitter tolerance research of clock restoration circuits.CMOS Multi-Channel Single-Chip Receivers for Multi-Gigabit Optical information Communications is needed analyzing for practising engineers and researchers within the box of short-distance optical communications and optical CMOS receiver layout.
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Additional info for CMOS Multichannel Single-Chip Receivers for Multi-Gigabit Optical Data Communications
5 Transimpedance Amplifier Analysis Before evaluation of system gain, bandwidth and sensitivity, it is preferable to spend some time on the analysis of the transimpedance amplifier. 7. 1 on “Common-Gate Input 36 System-Level Specifications Stage Amplifiers”). Adaptation of the presented theory to such topologies shall take into account the independence between TIA bandwidth and detector capacitance and is left to the interested reader. 7). Compared to a passive current-voltage conversion scheme, this transimpedance configuration interestingly divides the impedance as seen by the detector by the amplifier’s open-loop voltage gain AvTIA.
18. 18) CHAPTER 4 System-Level Specifications After this general introduction on short-distance fiber-optic communication systems, let us now focus on the receiver design. 1). Commercial photodetectors are manufactured using III-V semiconductors like GaAs, InGaAs or InP. The transimpedance amplifiers, as well as the limiting amplifiers, use silicon or silicon–germanium (SiGe) bipolar processes to achieve a high bandwidth-power product. As clock recovery does not require the same gain-bandwidth product and is commonly built with logic gates, it is fabricated in standard CMOS.
The elastic buffer is a FIFO-type structure which reads the data using the recovered clock and delivers it to the digital core of the processor using the system clock. As such, it transfers the data from one clock domain to the other. With the present work focusing on the design of integrated fiber-optic receivers, the issues on the transmitter side will not be further addressed. An introduction to the basic concepts of the design of such fiber-optic receivers will allow the reader to fully understand the importance of each step later addressed in the modeling and design of the receiver.