DDC introduces RD-19231 Series of 16-bit Resolver-to-Digital (R/D) converters

  • October 30, 2018
  • Data Device Corporation
DDC introduces RD-19231 Series of 16-bit Resolver-to-Digital (R/D) converters
DDC introduces RD-19231 Series of 16-bit Resolver-to-Digital (R/D) converters

October 30, 2018 - Data Device Corporation (DDC) announced the introduction of its RD-19231 Series of 16-bit Resolver-to-Digital (R/D) Converters, which offer 3.3V or 5V compatibility and are designed for aerospace, industrial, and commercial positioning systems. The RD-19231, contained in a 64-pin plastic quad flat pack (10 mm x 10 mm), is a drop in replacement to all RD-19230 legacy designs, and replacement requires no modification of the Printed Circuit Board (PCB). This single SOI CMOS monolithic chip merges precision analog circuitry with digital logic to form a complete tracking R/D converter with accuracy up to 1 arc minute. The RD-19231 offers user programmable encoder emulation, resolution, bandwidth, tracking rate, velocity scaling and a new selectable I/O voltage output of 5V or 3.3V. Furthermore, an internal encoder emulation feature (with independent resolution control) enables the RD-19231 to emulate incremental optical encoder output signals, so that new encoder based systems can now interface with a resolver output.

The RD-19231’s synthesized reference capability eliminates errors caused by quadrature (phase shift) voltage, and also ensures operation with a phase shift of up to 45 degrees. Additionally, the RD-19231’s differential resolver inputs allow for filtering in noisy environments.

The RD-19231 accepts two sets of bandwidth components for a wide variety of dynamic applications. The dual bandwidth feature also enables users to switch the resolution on the fly between 10, 12, 14, or 16-bit settings with minimal upset to velocity and position information. Velocity scaling, reversal error, and offset parameters may be externally trimmed for applications requiring tighter specifications than are the norm.

The RD-19231 series operates in temperatures ranging from -40° C to +85° C, and is suitable for aerospace, industrial, and commercial position applications, including servo motor controls, antenna positioning, aircraft position feedback systems, machine tool and robotic positioning controls, and manufacturing process control systems. 

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