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DDC’s RD-19230 Resolver-to-Digital Converters Offer New Programmable Features

Bohemia, New York — Data Device Corporation (DDC) announces the introduction of its RD-19230-Series of low cost, 16-bit Resolver-to-Digital (R/D) Converters which are ideal for high performance industrial and commercial positioning systems. The RD-19230 is contained in a small 64-pin plastic quad flat pack (10 mm x 10 mm). This single CMOS custom monolithic chip merges precision analog circuitry with digital logic to form a complete high performance tracking R/D converter with accuracy to 2.3 arc minutes. For convenience and flexibility, the RD-19230 offers user programmable encoder emulation, resolution, bandwidth, tracking rate, and velocity scaling.

Normally, as little as six degrees of resolver phase shift can cause accuracy problems in a 16-bit R/D converter. The RD-19230s synthesized reference capability not only eliminates errors caused by quadrature voltage, but ensures accurate operation with a phase shift of up to 45 degrees. An internal encoder emulation feature (with independent resolution control) enables the RD-19230 to emulate incremental optical encoder output signals. New encoder based systems can now easily interface with a resolver output. Differential resolver inputs allow for easy filtering in noisy environments.

The RD-19230 accepts two sets of bandwidth components providing users with uncompromising precision 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. Dual bandwidth and switch on the fly resolution are excellent features for applications requiring high resolution with a setting time that is faster than such a resolution will permit.

The RD-19230s ±4 V velocity output (VEL) eliminates the need for a tachometer/ The user sets the VELs full scale value with a single resistor. Velocity scaling, reversal error, and offset parameters may be externally trimmed for applications requiring tighter specifications than are the norm.

The RD-19230 series operates in temperatures ranging from -40° C to +85° C and are ideal for industrial and commercial position applications such as servo motor controls, antenna positioning, aircraft position feedback systems, machine tool and robotic positioning controls, and manufacturing process control systems.

Data Device Corporation is an international leader in high-reliability data conversion interface components and subsystems for military and commercial applications. Established in 1964 with the introduction of the first synchro-to-digital module, DDC's design and manufacturing facility is located in Bohemia, New York.


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ATTN: Marketing Communications Dept. Data Device Corporation
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Bohemia, NY 11716