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

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

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

With the previous few decade efforts on lithography and integrated-circuit (IC) applied sciences, very inexpensive microsystems were effectively constructed for lots of diversified functions. the rage in instant communications is towards making a networkubiquitous period within the future years. Many unheard of possibilities and demanding situations, similar to layout for multi-standardability and low-voltage (LV) compliance, are swiftly turning into the mainstream instructions in wireless-IC learn and improvement, on condition that the previous can supply the simplest connectivity between various networks, whereas the latter can facilitate the expertise migration into the sub-1-V nanoscale regimes for additional fee and tool relief. Analog-Baseband Architecturees and Circuits provides architectural and circuit concepts for instant transceivers to accomplish multistandard and low-voltage compliance. the 1st a part of the e-book reports the actual layer standards of contemporary instant communique criteria, offers the elemental tradeoffs fascinated with transceiver structure choice, and gives case reviews of the state of the art multistandard transceivers, the place the most important concepts strengthened are highlighted and mentioned. A statistical precis (with a hundred+ references pointed out) of such a lot used transmitter and receiver architectures for contemporary communique criteria is supplied. the entire references are citied from the top boards, i.e., ISSCC, CICC, VLSI and ESSCIRC, from 1997 to 2005. the second one half specializes in the architectural layout of multistandard transceivers. A coarse-RF fine-IF (two-step) channelselection approach is disclosed. It, in the course of the reconfiguration of receiver and transmitter analog basebands, allows not just a leisure of the RF frequency synthesizer’s and native oscillator’s layout requisites, but additionally a good multistandard compliance by way of synthesizing the low-IF and zero-IF within the receiver; and the direct-up and two-step-up within the transmitter. the main is validated in few layout examples. one among 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 distinct 3D-stack floorplan, and a selected layout technique for top testability and routability. The 3rd half offers with the circuit layout. as well as the methodical description of many LV circuit strategies, three tailormade LV-robust sensible blocks are offered. They comprise: 1) a double-quadrature-downconversion filter 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 bargains a transient-free constant-bandwidth achieve adjustment. three) An inside-OpAmp dc-offset canceler – it saves the silicon zone required for understanding a wide time consistent on chip whereas maximizing its highpass-pole switchability for speedy dc-offset brief. The final half provides experimental result of the three tailored development 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 construction blocks measurements are defined. not just the development blocks have effectively prolonged the cutting-edge boundary by way of sign bandwidth and provide voltage, the analog-baseband IC has been to date the lowest-voltage-reported resolution 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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