Pui-In Mak,Ben U Seng Pan,Rui Paulo Martins's Analog-Baseband Architectures and Circuits for Multistandard PDF

By Pui-In Mak,Ben U Seng Pan,Rui Paulo Martins

ISBN-10: 1402064322

ISBN-13: 9781402064326

ISBN-10: 9048176409

ISBN-13: 9789048176403

With the prior few decade efforts on lithography and integrated-circuit (IC) applied sciences, very reasonably cheap microsystems were effectively built for lots of diversified functions. the craze in instant communications is towards making a networkubiquitous period within the future years. Many remarkable possibilities and demanding situations, akin to layout for multi-standardability and low-voltage (LV) compliance, are speedily changing into the mainstream instructions in wireless-IC learn and improvement, provided that the previous can provide the simplest connectivity between varied networks, whereas the latter can facilitate the expertise migration into the sub-1-V nanoscale regimes for additional expense and tool aid. Analog-Baseband Architecturees and Circuits offers architectural and circuit recommendations for instant transceivers to accomplish multistandard and low-voltage compliance. the 1st a part of the booklet experiences the actual layer requisites of contemporary instant verbal exchange criteria, offers the basic tradeoffs thinking about transceiver structure choice, and offers case reports of the state of the art multistandard transceivers, the place the main strategies strengthened are highlighted and mentioned. A statistical precis (with a hundred+ references stated) of so much used transmitter and receiver architectures for contemporary verbal exchange criteria is equipped. all of the references are citied from the best boards, i.e., ISSCC, CICC, VLSI and ESSCIRC, from 1997 to 2005. the second one half makes a speciality of the architectural layout of multistandard transceivers. A coarse-RF fine-IF (two-step) channelselection procedure is disclosed. It, throughout the reconfiguration of receiver and transmitter analog basebands, allows not just a leisure of the RF frequency synthesizer’s and native oscillator’s layout standards, but additionally a good multistandard compliance via synthesizing the low-IF and zero-IF within the receiver; and the direct-up and two-step-up within the transmitter. the main is confirmed in few layout examples. certainly one of them is a system-in-a-package (SiP) receiver analog baseband for IEEE 802.11a/b/g WLAN. It not just has the two-step channel choice embedded, but in addition contains a flexible-IF topology, a different 3D-stack floorplan, and a selected layout technique for top testability and routability. The 3rd half bargains with the circuit layout. as well as the methodical description of many LV circuit innovations, three tailormade LV-robust practical blocks are provided. They contain: 1) a double-quadrature-downconversion clear out (DQDF) – it realizes at the same time clock-rate-defined IF reception, I/Q demodulation, IF channel choice and baseband filtering. 2) A switched-current-resistor (SCR) programmable-gain amplifier (PGA) – it deals a transient-free constant-bandwidth achieve adjustment. three) An inside-OpAmp dc-offset canceler – it saves the silicon zone required for figuring out a wide time consistent on chip whereas maximizing its highpass-pole switchability for speedy dc-offset brief. The final half offers experimental result of the three tailored construction blocks and a fully-integrated analog-baseband IC fabricated in a standard-VTH CMOS method. formerly untold on-/off-chip co-setup for either full-chip and development blocks measurements are defined. not just the development blocks have effectively prolonged the state of the art boundary when it comes to sign bandwidth and provide voltage, the analog-baseband IC has been up to now the lowest-voltage-reported answer for IEEE 802.11a/b/g WLAN receivers.

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Analog-Baseband Architectures and Circuits for Multistandard and Low-Voltage Wireless Transceivers (Analog Circuits and Signal Processing) by Pui-In Mak,Ben U Seng Pan,Rui Paulo Martins

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