The Mixed-Signal Engineer is responsible for researching, designing, developing, laying out, and testing of high precision mixed-signal electronics (Analog and Digital), electro-acoustical systems, components, and modules for both prototyping and production.
Additional responsibilities include supporting and upgrading existing product lines, in-house and field failure analysis, and vendor communications/sourcing.
ESSENTIAL FUNCTIONS and REQUIREMENTS:
Precision Mixed Signal Circuit design, analysis, simulation, layout, and testing experience. Specifically:
- Working knowledge of Analog precision circuits: Low noise and Low distortion preamps, Feedback amplifiers, ADCs, DACs, RLC Filters, LDOs, Buck and Boost converters, Timers, PLLs, Crystal Oscillators, etc.
- Working knowledge of Digital circuits: Microcontrollers, digital logic, state machines, Timers.
- Strong understanding of layout concepts in both Analog and High Speed Mixed-signal designs: PCB floor planning, Power and Signal layer distributions, Transmission Line impedances, matching IO impedances, Power and Ground planes, Signal and Power Routing, Vias, Shielding, RF and ESD protection etc.
Understanding of common Analog and Digital Audio interfaces and protocols: Balanced Phantom Power and Transformer coupled Preamps, Unbalanced and High Z inputs, USB, I2S, SPDIF, ADAT and AVB.
Basic acoustic knowledge: Condenser/Dynamic Microphones, Preamplifiers, Speakers, Power amplifiers and other electro acoustic components.
Experience with MATLAB/Octave/Python and C programming.
Doing data acquisition and post processing related to electro-acoustic measurements using DSP techniques including, but not limited to: FFTs, correlation, convolution, and FIR & IIR filters.
Operates computer-assisted engineering or design software or equipment to perform engineering tasks. Altium and Tina experience are highly desirable.
Performs detailed calculations and simulations while implementing engineering theory to achieve performance specifications and standards.
Designs, maintains, or improves production electrical instruments, equipment, products, or systems.
Documents projects and prepares technical drawings and specifications of electronics/electrical systems to ensure that installation and operations conform to standards and customer requirements.
Prepares specifications for purchases of components, materials or equipment and develops vendor and lab relationships.
EDUCATION AND EXPERIENCE
Must have a BS in Electrical/Electronics Engineering
Masters in an associated field or 3+ years experience designing High-Performance Mixed-Signal Systems.