Resolver-to-digital (R/D) converters for aircraft position feedback systems introduced by DDC
BOHEMIA, N.Y. – Data Device Corp. (DDC) in Bohemia, N.Y., is introducing the RD-19231 series of 16-bit resolver-to-digital (R/D) converters for high-performance aerospace, industrial, and commercial positioning systems.
The motion-control device is for applications like servo motor controls, antenna positioning, aircraft position feedback systems, machine tool and robotic positioning controls, and manufacturing process control systems.
These R/D converters offer 3.3- or 5-volt compatibility and are contained in a small 64-pin plastic quad flat pack that measures 10 by 10 millimeters. It is a drop-in replacement to all RD-19230 legacy designs, and replacement requires no modification of the circuit board.
This single SOI CMOS monolithic motion control chip merges precision analog circuitry with digital logic, and offers accuracy to 1 arc minute. The RD-19231 offers user programmable encoder emulation, resolution, bandwidth, tracking rate, and velocity scaling.
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An internal encoder emulation feature with independent resolution control enables the RD-19231 to emulate incremental optical encoder output signals.
The RD-19231 accepts two sets of bandwidth components, and its 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.
The RD-19231's plus-or-minus 4-volt velocity output eliminates the need for a tachometer, and can be set with a resistor. Velocity scaling, reversal error, and offset parameters may be externally trimmed for applications requiring tight specifications.
The RD-19231 series operates in temperatures ranging from -40 to 85 degrees Celsius, and is available in lead and RoHS lead-free versions. For more information contact DDC online at www.ddc-web.com.
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