*ASIC for voice wake DSP-Responsible for designing signal path (PGA, AAF, dual audio converter path) and core LDO*Low power, low noise differential PGA IP to interface with acoustic single-ended MEMS microphone-Responsible for designing interfacing amplifier (impedance converter) -Designed common-mode feedback loop and integrated it with interfacing amplifier and high-voltage charge pump to convert singled-ended MEMS into a differential structure.*Helped to improve existing topology for 250 mA DSP LDO (current feedback architecture)*Low power, low noise single-ended analog microphone test chip-Responsible for full design of test chip: PTAT, bandgap generator, high voltage charge pump (11V), singled ended class A/B interfacing amplifier, bi-modal oscillator (4 MHz at startup and 500 kHz at steady state), control and timing logic*Developed test circuit to determine noise impact from biasing circuit on interfacing amplifier

*Oversaw development of a few projects-Low noise AFE for thermopile sensor array AFE (LMP93601)-Nanopower (sub 500 nA) operational amplifier (LPV542)-Time-to-digital Converter (TDC) AFE for time-of-flight applications in flow metering (TDC7201)-R&D of pressure sensor AFE

*Digital input audio codec with headset detection-Responsible for leading a team of analog & digital engineers-Oversaw the development and integration of new IP -Specific design duties: low power PTAT/BGAP block and re-design low-power headphone amplifier -Engaged with cross-functional team members to develop project. *Multi-level step down regulated charge pump (CP) for headphone jack-2V, 30 mA regulated charge pump [supply range: 2.7V to 5.5V @ 500 kHz] -Maximized power efficiency vs input voltage CP (conversion ratios of 1/2, 2/3, and a bypass mode).

*Output current sense for Class D amplifier -Design circuit to sense dynamic Class D load current. *Automatic Level Control (ALC) for class D audio application (LM49151) -Low distortion (< 0.3%), fully analog control loop which performs 3 functions: 1) voltage limiter 2) output clipping prevention (saturation of class D outputs), and 3) clipping control function (allowed different levels of THD before circuit became active). -US Patent # US8030996 B1 [Apparatus and method for automatic level control]*Unregulated inverting charge pump in a 1.8V, 0.18 um CMOS process to supply negative rail for stereo HP amplifier application.