Data Device Corporation
105 Wilbur Place
Bohemia, New York 11716
631-567-5600 Fax: 631-567-7358
www.ddc-web.com
FOR MORE INFORMATION CONTACT:
Technical Support:
1-800-DDC-5757 ext. 7771
FEATURES
Complete D/S or D/R Converter
Accuracy: to ± 1 Minute
0.1 % Scale Factor Variation with
Angle
DC-Coupled Reference Accepts Any
Waveform
Generates SIN/COS DC or Rotating
PPI Sweep
High-Rel CMOS D/R Chip
8-Bit/2-Byte Double-Buffered
Transparent Latches
DESCRIPTION
The DSC-11520 is a versatile multiplying Digital-to-Synchro/Resolver con-
verter. The digital input represents an angle and the output is pin program-
mable for either resolver type SIN/COS or for three-line synchro output. The
reference input will accept any waveform, even a sawtooth for CRT drive.
Because the reference is DC-coupled to the output, the DSC-11520 can be
used in many configurations:
With a synchro or resolver reference input, the DSC-11520 is a
Digital-to-Synchro or Digital-to-Resolver converter.
With a DC reference input, the unit can be used as a hybrid
Digital-to-SIN/COS DC converter.
With the reference input proportional to the radius vector, the DSC-11520
converts polar to rectangular coordinates.
With a sawtooth reference input and a rotating digital input, the module can
generate a cartwheel rotating sweep for PPI displays.
Packaged in a 36-pin double DIP, the DSC-11520 is a complete D/S and D/R
converter in one hybrid module.
The DSC-11520 features low weight, low power consumption, very high reli-
ability, and a wide operating temperature range. The circuit design results in
high accuracy and reduces the output scale factor so that the output can drive
displays directly. The output line-to-line voltage can be scaled by external
resistors. The reference input provides high AC and DC common mode rejec-
tion.
APPLICATIONS
Because of its high reliability, small size and low power consumption, the
hybrid DSC-11520 is ideal for the most stringent and severe industrial and
military ground or avionics applications. All units are available with MIL-PRF-
38534 processing as a standard option.
Among the many possible applications are computer based systems in which
digital information is processed, such as simulators, flight trainers, flight
instrumentation, fire control systems, radar and navigation systems, and PPI
displays including moving target indicators.
DSC-11520
16-BIT PIN PROGRAMMABLE
D/S OR D/R CONVERTER
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