The PGA411-Q1 device is a resolver to digital converter, with an integrated
exciter-amplifier and boost-regulator power supply, that is capable of both exciting and reading
the sine and cosine angle from a resolver sensor. The integration of the exciter amplifier and
boost supply with protection in the PGA411-Q1 device enables cost reductions of the bill of
materials (BOM) and space reductions on the printed circuit board (PCB) because of the elimination
of most external and passive components.
The PGA411-Q1 device also has an internal clock for generating a sine wave used for
sensor excitation. The architecture of the analog front-end (AFE) allows the user to output 10 bits
or 12 bits of resolution for the angle position and velocity. Because of high integration, the
PGA411-Q1 device has diagnostics and protection on each internal block inside the device. The
integrated diagnostics monitor can signal a fault condition through a dedicated pin which can be
used as a MCU interrupt. These features allow flexibility in both resolver sensor choice and
platform scalability. Additionally, the PGA411-Q1 was designed according to the requirements of ISO
26262 for functional safety applications.
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