Rohit Mahajan — Software Engineer

1) Title : Variable gain Amplifier (VGA) Description : A fully differential CMOS variable gain amplifier (VGA) has been designed for an ultra-wideband receiver. The gain of the VGA varies dB-linearly with respect to the control voltage. The VGA is operated in open loop with a bandwidth greater than 500 MHz throughout the gain range to cater to the requirements of the ultra-wideband system. DC offset cancellation has also been incorporated to minimize the input referred DC offset caused by systematic and random mismatches in the circuit. Compensation schemes to minimize the effects of temperature, supply and process variations have been included in the design. 2) Title : Antilog Amplifier Description : Log amplifier is used in compression of input signal in many application . Antilog amplifier is used to recover original signal. In this project antilog amplifier has worked for 6 decade of dynamic range along with 1% log conformity error. Antilog amplifier require design of Operational amplifier with very low offset voltage. Antilog amplifier requires temperature compensation to reduce effect of temperature variation. 3) Title : 64 point Discrete Cosine Transform(DCT) Description : DCT is widely use in Speech & Image data compression. Hence this should be fast. Thus, in this project, Algorithm-Architecture Transformation algorithm is used, which is based on symmetric property of the DCT kernel matrix. This decomposes algorithm will reduce the numbers of multiplications. Specialties: Languages : C, VHDL. Operating Systems : Windows XP, LINUX Packages : Cadence (Virtuoso ADE), Mentor Graphics (ELDO),MAGMA,Tanner SPICE, Quartus-II, Modelsim, Xilinx ISE, MATLAB

Stackforce AI infers this person is a VLSI design engineer with expertise in analog and digital signal processing.

Location: Bengaluru, Karnataka, India

Experience: 15 yrs 2 mos