R/D Converters

Smartcoder is a R/D (Resolver to Digital) conversion IC, which converts resolver signals into digital absolute position angle signals.
It is usable in a wide range of applications, including vehicle/robot/machine tool related applications, in combination with brushless resolvers such as our Resolver.

VRDC

Features

・High temperature Resistance
 Wide Temperature Range :-40 to +125 ℃
・High velocity revolution
 High velocity revolution :240,000 min-1
・Small size
 48 pin TQFP (7 mm × 7 mm) Pin to pin: 0.5 mm

lineup


Type General-purpose type High-performance type
Product Name Smartcoder VRDC
Model Number AU6805 AUA6800
Resolver VRX
(One-phase excitation/ two-phase output)
VRS
(Two-phase excitation/ two-phase output)
VRT
(Two-phase excitation/ one-phase output)
VRX
(One-phase excitation/ two-phase output)
Resolution 4,096 LSB 65,536 LSB
Conversion accuracy ±21 arc min ±5.3 arc min ±11 arc min ±21 arc min
Max. Angular acceleration 7,000 to 3,000,000 rad/s2
(Depends on bandwidth setting)
100,000 to 13,000,000 rad/s2
(Depends on bandwidth setting)
60,000 to 8,800,000 rad/s2
(Depends on bandwidth setting)
A/B-phase pulse number 1,024 pulse/rev 1,024 to 8,192 pulse/rev
Output response
(I/O delay)
0.2 °/10,000 min-1
(3.3 us)
0.15 °/10,000 min-1
(2.5 us)
Output form Parallel + A,B,Z + Serial (SPI) Parallel + A,B,Z + Serial (SPI or NRZ)
Power supply +5 V ±10 % +3.3 V ±10 %
Current consumption 60 mA 46 mA


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