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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 | ||
