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Resolver / Digital converters (Smartcoder)
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 Smartsyn and Singlsyn.
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User's Manual
Features of AU6805 Series
- ・Adopts R/D conversion based on a proven digital tracking system
- ・Low cost, small size and light weight
- ・Satisfying fail check functions
(1) Abnormality detection
Capable of detecting abnormal resolver signals, breaking of resolver signals, abnormal R/D conversion and abnormally high temperature of a IC
(2) Built in self test
Conducts a self test on R/D conversion and abnormality detection - ・Realization of system/cost reduction based on all-in-one concepts
(1) Integrated with an excttation amplifier (Output current: 1 OmA rms/20mA rms)
(2) Integrated with an operation clock - ・Enhancement of functions corresponding to various applications
(1) Requires no phase adjustment to excitation signals (Allowable range: Within土45゜）
(2) Variable setting of controlling bandwidth (fBW) (Selectable from 7 types of fixed values or automatic adjustment)
(3) Capable of digital conversion of linear hall IC signals and R/D parallel connections to resolvers
(4) Output redundancy (Triple redundancy-Parallel/Pulse/Serial output)
Features of AU6802N1
- ・Wide operating temperature range : -40∼+125°C
- ・Real time output (High tracking rate: 240,000min-1 for 10 bit resolution)
- ・Single power supply of DC5V (Integrated oscillator for exciting resolver: 10/20kHz)
- ・Small size and light weight (10×10mm,Pin interval : 0.65mm, 52pins TQFP, Mass.0.3gram)
- ・Built-in test (Abnormality detection) function
- ・Pulse / Parallel / Bus serial (Selectable)
- ・Resolution of 10/12 bit (Selectable)
- ・Single power supply of DC5V (Integrated oscillator for exciting resolver: 10/20 kHz)
- ・Capable to set the number of poles for UVW (Selectable from X1, 2, 3, 4)
- ・Clock input (20MHz) : External CLK input / Crystal resonator / Ceramic resonator (Selectable)
Specifications
Smartcoder AU6805 Series
| Resolution | 4,096（＝212） |
|---|---|
| Tracking rate | 240,000min-1（ When fBW is fixed.) |
| Convers1on accuracy | ±4 LSB |
| Max. angular acceleration | 3,000,000 rad／sec2（When fBW is automatic adjustment.) |
| Settling time | 1.5ms(When input step is 180゜，and fBW is automatic adjustment.) |
| Output response | ±0.2°／10,000min-1 |
| Output form | 12bit binary code Positive logic parallel+ A,B,Z + Serial 1/F |
| Power requirement | +5V±10% (45mA: When the excitation amplifier is set at 10mA rms.) |
| Excitation power supply | Integrated with a constant current control method excitation amplifier (10mArms / 20mArms) |
| Outline | 48pin LQFP（7×7）、Pin to pin: 0.5mm |
| Operating temperature | -40～+125℃ |
Smartcoder AU6802N1
| Output form | Binary code parallel 10/12 bit bus compatible, positive logic | |
|---|---|---|
| Resolution | 1,024(210) | 4,096(212) |
| Max Angular velocity | 240,000min-1 | 60,000min-1 |
| Conversion accuracy | ±2 LSB | ±4 LSB |
| Settling time (For step input of 180° in electric angle) |
1msTyp.(ACMD="H") | 2.5msTyp.(ACMD="H") |
| Response (As output response delay in electric angle) |
±0.2°Max/10,000min-1 | ±0.4°Max/10,000min-1 |
| 2 Phase pulse signal(A,B) | 256C/T | 1,024C/T |
| Power supply voltage | DC5V±5% 45mA Max.(30mA Typ.) | |
| Operating Temperature | -40∼+125℃ | |
| Storage temperature | -65∼+150℃ | |
| Humidity | 90%RH Max. | |
| Mass | 1g Max. | |
