Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Hassan Elwan"'
Publikováno v:
IEEE Journal of Solid-State Circuits. 44:2689-2701
In this paper, a new technique for realizing area-efficient, low-noise filters is introduced. The proposed filter topologies utilize noise shaping techniques to shift the noise of the passive and active filter components out of the passband of the fi
Publikováno v:
IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing. 50:278-287
The design and implementation of a high performance CMOS fully balanced second-generation current conveyor (FBCCII) is presented. The proposed circuit is essential to extend the use of the CCII based circuits to integrated circuits (ICs) applications
Publikováno v:
IEE Proceedings - Circuits, Devices and Systems. 149:337-347
A CMOS low power baseband chain for an integrated GSM/DECT multistandard receiver is presented. The chain uses a low power class AB digitally controlled filter and variable gain amplifier blocks to provide a low power, DSP controllable design solutio
Publikováno v:
IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing. 49:545-554
A CMOS low-power baseband analog front end (BAFE) for an integrated bluetooth receiver is presented. The BAFE is designed using a new fully differential buffer (FDB) circuit that can effectively implement filters with gain/filtering interleaved opera
Publikováno v:
AEU - International Journal of Electronics and Communications. 56:137-144
Summary In this paper, a digitally controlled current conveyo(DCCC) is presented. The proposed DCCC is based on rail-to-rail folded cascode implementation with a current division network (CDN). The CDN is used to provide control on the current gain o
Publikováno v:
IEEE Journal of Solid-State Circuits. 37:27-37
A new approach for designing digitally programmable CMOS integrated baseband filters is presented. The proposed technique provides a systematic method for designing filters exhibiting high linearity and low power. A sixth-order Butterworth low-pass f
Publikováno v:
IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing. 48:245-254
A CMOS variable-gain amplifier (VGA) for use in the baseband section of integrated wireless receivers is presented. The VGA circuit is based on a new CMOS realization of the Norton transresistance amplifier. The proposed CMOS realization operates fro
Publikováno v:
IEEE Circuits and Devices Magazine. 17:7-19
The expanding growth of wireless communications has led to the proliferation of different standards. The highly competitive market demands low-cost, low-power, and small form-factor devices. This calls for the development of a single-chip, third-gene
Publikováno v:
Circuits Systems and Signal Processing. 20:11-26
A new CMOS realization of the differential current voltage conveyor (DCVC) is introduced. The properties of the DCVC are shown to be suitable for very large-scale integration applications employing metal oxide semiconductor transistors operating in a
Autor:
Mohammed Ismail, Hassan Elwan
Publikováno v:
IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing. 47:388-398
A new technique for realizing CMOS digitally-controlled decibel-linear variable gain amplifier (VGA) circuits is described. CMOS VGA circuits employing the proposed technique are then given. Besides being effective and simple to use from a system poi