By Michiel Steyaert, Arthur H.M. van Roermund, Johan Huijsing
Analog Circuit layout includes the contribution of 18 tutorials of the 14th workshop on Advances in Analog Circuit layout. each one half discusses a particular todate subject on new and beneficial layout principles within the region of analog circuit layout. each one half is gifted through six specialists in that box and state-of-the-art info is shared and overviewed. This booklet is quantity 14 during this profitable sequence of Analog Circuit layout, delivering worthy info and perfect overviews of analog circuit layout, CAD and RF systems.
Analog Circuit layout is a vital reference resource for analog circuit designers and researchers wishing to maintain abreast with the newest improvement within the box. the academic insurance additionally makes it compatible to be used in a sophisticated layout course.
Read Online or Download Analog Circuit Design: RF Circuits: Wide band, Front-Ends, DAC's, Design Methodology and Verification for RF and Mixed-Signal Systems, Low Power and Low Voltage PDF
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Extra info for Analog Circuit Design: RF Circuits: Wide band, Front-Ends, DAC's, Design Methodology and Verification for RF and Mixed-Signal Systems, Low Power and Low Voltage
13um cmos transistors has a beneficial impact on the power consumption of the RF circuits. On the other hand, the low supply voltage limits the choice of circuit topologies. The tolerance of the on-chip regulators further limits the supply voltage range. 2 V minimum supply voltage. 4 . The power amplifier The GFSK modulation of the Bluetooth data allows the use of more power efficient topologies compared to the linear class A topology. A multi-stage class AB topology was selected in order to increase the efficiency of the amplifier.
In order to cancel this offset, I and Q differential offset DACs with a resolution equal to ½ LSB of the signal DAC have been implemented. These offset DACs 40 are integrated in the same layout structure as the signal DACs. In this way, good accuracy and correlation with the signal currents is assured as well as a very small additional area consumption. However, sample by sample calibration is expensive. Especially for products intended for mass production, the elimination of a calibration cost has an important impact on the cost of the component.
The I-Q up-conversion mixer The mixer topology is based on a Gilbert cell mixer topology with some modifications resulting in superior in-band linearity . Third order distortion components at LO3BB are smaller than –50dBc. The required LO signal amplitude is less then 300mV amplitude for any technology corner or temperature. This small LO amplitude allows for lower power consumption in the LO-buffers of the PLL. A current-mode topology The current consumption has been optimized by using a flattened approach for the tx-signal path.
Analog Circuit Design: RF Circuits: Wide band, Front-Ends, DAC's, Design Methodology and Verification for RF and Mixed-Signal Systems, Low Power and Low Voltage by Michiel Steyaert, Arthur H.M. van Roermund, Johan Huijsing