Timothy Magnusen

PROFESSIONAL SUMMARY Principal Engineer and Project Lead with extensive background and expertise in RF and Analog IC design. Comprehensive knowledge of transceiver architectures, designs, and requirements. Expertise in power management including system power control and distribution from multiple sources. Proven ability to lead project teams from product concept to production resulting in major revenue. Process expertise includes: Nanometer CMOS down to 40nm. BiCMOS with 180nm CMOS and 130nm 240 GHz Ft Bipolar. Power management with 180nm CMOS and 5V-60V LDMOS. System architecture expertise includes: Transceiver signal path, frequency synthesis, programmable modes targeting different customer markets, automatic gain control systems, built in calibration and testability. Power management including input power selection, battery control, solar with MPPT and energy harvesting, DC/DC conversion, and low dropout regulators for low noise. Circuit design expertise includes: Low noise high linearity RF receivers from 50 MHz to 6 GHz including RF multimode low noise amplifiers, image and harmonic reject active and passive mixers, wideband and narrowband power detectors, and RF and baseband filters. Frequency synthesis including PLL dividers, VCO’s, XTAL buffers/drivers with AGC, relaxation oscillators. Power management including low noise low dropout regulators, DC/DC converter, current measure, solar MPPT, energy harvesting, battery charging, and programmable LED driver system. Sub-blocks including op-amps, calibration ADC/DAC, bandgap references, and current mirrors.