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S/D or R/D Converter, ISA Bus, High Performance

Discontinued Product. Please contact the factory for the latest replacement.


Part Number(s): API-36005
Package: Full Size ISA PC Card
Lead Free Information: B

The API-36005 is a full-size IBM PC card containing a broadband, high accuracy instrumentation grade Synchro/Resolver Angle Position Indicator. The angle position indicator accepts a Reference signal of either 26 Vrms or 115 Vrms, along with Synchro/Resolver Signals of 11.8, 26, or 90 Volts line-to-line, and converts these signals into 16 or 20 bits of binary angular information. The reference and synchro/resolver input signals are fully transformer isolated and can accept signals over the frequency range of 360 Hz to 5000 Hz. The API-36005 contains a built-in single angle self-test feature for confidence testing.

Demonstration software, which shows the API-36005 capabilities is available with the card. LabWindows/CVI and LabVIEW support software are available on request.


The API-36005 is a versatile high accuracy Synchro/Resolver Angle Position Indicator instrument for IBM PC-based test systems. Data to and from the angle position indicator instrument is more than an order-of-magnitude faster than conventional IEEE bus test systems, because the card plugs directly into the PC bus structure. It is ideal for use as a stand-alone angle indicator in the engineering lab or as part of the PC based automatic test equipment (ATE).


  • Accuracy of ±18 Arc Seconds in 20-Bit Mode
  • Programmable Resolution of 16 or 20 Bits
  • Broadband Operating Frequency 360 Hz to 5000 Hz
  • Fully Transformer Isolated
  • Tracking Rate of 1040 Deg/Sec in 16-Bit Mode, 65 Deg/Sec in 20-Bit Mode
  • Loss-of-Reference and Tracking Status Bits




API 36005


Synchro/Resolver Angle Indicator User's Guide

 Application Note

MFT-1: Testing and Troubleshooting Synchro/Resolver Converters

 Generic Document

DDC Corporate Overview

DDC Product Catalog

Synchro.dll Software Manual for all ISA PC based Synchro/Resolver Cards

Synchro/Resolver Conversion Handbook

Synchro/Resolver Solutions Flyer

DDC Custom Solutions Brochure



API-36005 32 Bit Software
Description: 32 Bit Synchro DLL & Library; Win 9x/NT Executable Application; Synchro Manager; Example Program.
Operating System: Win 9x/NT
Rev: 2.1 [icon] 2.1
File Size: 960 KB

Description: 16-Bit ACE Menu
Operating System: Win 3.x
Rev: 3.2 [icon] 3.2
File Size: 1 MB

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