Click to expand full text
a
Variable Resolution, Resolver-to-Digital Converter
AD2S83
FEATURES Tracking R/D Converter
FUNCTIONAL BLOCK DIAGRAM
High Accuracy Velocity Output High Max Tracking Rate 1040 RPS (10 Bits) 44-Lead PLCC Package 10-, 12-, 14-, or 16-Bit Resolution Set by User Ratiometric Conversion Stabilized Velocity Reference Dynamic Performance Set by User Industrial Temperature Range
APPLICATIONS DC and AC Servo Motor Control
SIN SIG GND
COS
A1
SEGMENT SWITCHING
A2
HF FILTER
REFERENCE I/P
C3
OFFSET ADJUST
R9
+12V
–12V
C1 R1
AC ERROR O/P
R – 2R DAC
A3
R2 R3 C2
R4
R8
BANDWIDTH SELECTION
DEMOD O/P
INTEGRATOR I/P
C5 R5 C4
PHASE SENSITIVE DETECTOR
INTEGRATOR O/P
VELOCITY SIGNAL
Process Control Numerical Control of Machine Tools Robotics Axis Control
GND
RIPPLE CLOCK
+12V –12V
16-BIT