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.

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