DRC-11522
TWO-CHANNEL DIGITAL-TO-RESOLVER
CONVERTER
FEATURES
DESCRIPTION
The DRC-11522 is a dual 16-bit digital- plays directly. The output line-to-line
to-resolver (D/R) converter. Each chan- voltage can be scaled by pin program-
nel is independent from the other with ming. Other features include buffered
the exception of the 16 digital lines. reference input, and a wide operating
The DRC-11522 allows the user to pro- temperature range.
16-Bit Resolution
•
•
•
•
•
Pin Programmable Gain Control
Two Channels in One 36-Pin DDIP
Accuracy: to ±± ꢀinꢁ
gram the gain of the resolver output.
APPLICATIONS
Packaged in a 36-pin double DIP, the
DRC-11522 is two digital-to-resolver Because of its high reliability, small
converters in one hybrid module. size and low power consumption, the
Using an AC reference input, the DRC- DRC-11522 is ideal for the most strin-
11522 is a digital-to-resolver convert- gent and severe industrial and military
er. When using a DC reference input, ground or avionics applications. All
the unit can be used as a hybrid digital- units are available with MIL-PRF-
to-sin/cos DC converter. With the refer- 38534 processing.
0ꢁ1% Scale Factor Variation with
Angle
DC-Coupled Reference
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•
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ence input proportional to the radius
vector, the DRC-11522 converts polar Among the many possible applications
High Reliability CꢀOS D/R Chip
to rectangular coordinates.
are computer-based systems in which
digital information is processed, such
The circuit design in the DRC-11522 as simulators, flight trainers, flight
allows for higher accuracy and instrumentation, fire control systems,
reduces the output scale factor varia- radar and navigation systems.
tion so that the output can drive dis-
8-Bit/±-Byte Double-Buffered
Transparent Latches
SIN A
SIN B
OUTPUT
AMPLIFIERS
OUTPUT
AMPLIFIERS
COS A
COS B
REFERENCE CONDITIONER
-
REFERENCE CONDITIONER
-
+C
+S
+C
+S
REF
REF
D/R CONVERTER
HIGH ACCURACY
LOW SCALE FACTOR
VARIATION
D/R CONVERTER
HIGH ACCURACY
LOW SCALE FACTOR
VARIATION
+
+
GC1-A
GC2-A
GC1-B
GC2-B
TRANSPARENT
LATCH
TRANSPARENT
LATCH
TRANSPARENT
LATCH
TRANSPARENT
LATCH
LL-A LL-B
LA-A LM-A
LM-B LA-B
+15 V
-15 V
GND
DIGITAL INPUT
FIGURE 1ꢁ DRC-115±± BLOCK DIAGRAꢀ
1988, 1999 Data Device Corporation
©