R/D Converters (VRDC)
High-performance R/D Converter compatible with all resolver signal methods.
By adopting a new R/D conversion method, high-speed and high-precision angle detection have been realized.
※This product uses the results of a project subsidized by the New Energy and Industrial Technology Development Organization (NEDO).
Evaluation Board Evaluation Communication Module
Features
- High-performance R/D output (Main-RDC)
・R/D conversion of all resolver signal methods is possible.
・Simultaneous output of angle data and speed data
・High-speed, high-resolution, high-precision real-time data (acceleration modeless) - R/D conversion function Triple redundancy ※1
・Main-RDC (Real-Time PLL system): 1 system
・Sub-RDC (PLL system): 2 systems - Health monitoring function ※1
・RDC output data comparison
・Various anomaly detection - Various built-in functions ※1
・Serial communication SILK®※2 for servo sensors that can connect multiple sensors to bus communication
・R/D conversion bandwidth setting
※1：Functions may be limited in combination with resolvers other than VRS and BRS resolvers.
※2：SILK® is a trademark of Tamagawa Seiki Co., Ltd.
Specifications
| Resolver | VRS (Two-phase excitation / two-phase output) |
VRT (Two-phase excitation / one-phase output) |
VRX (One-phase excitation / two-phase output) |
|---|---|---|---|
| Resolution | 65,536 (= 216） | ||
| Tracking rate | 240,000 min-1 | ||
| Conversion accuracy | ±16 LSB | ±32 LSB | ±64 LSB |
| Max. Angular acceleration | 100,000 to 13,000,000 rad/s2 (Depends on bandwidth setting) |
60,000 to 8,800,000 rad/s2 (Depends on bandwidth setting) |
|
| Settling time | 1.5 to 12.5 ms (Depends on bandwidth setting) |
2.0 to 15.0 ms (Depends on bandwidth setting) |
|
| Output response | ±0.15 °/10,000 min-1(Equivalent to input/output delay of 2.5 us) | ||
| Output form | Parallel + A,B,Z + Serial (SPI or NRZ) | ||
| Power requirement | +3.3 V±10 %（46 mA） | ||
| Outline | 48 pin TQFP (7 mm×7 mm) Pin to pin: 0.5 mm | ||
| Operating temperature | -40 to +125℃ | ||
Outline
Dimension ：mm
Functional Block Diagram
Pin Description
| No. | Symbol | Class | Remarks | No. | Symbol | Class | Remarks | No. | Symbol | Class | Remarks | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | COSMNT | A/O | COS monitor | 17 | D0 | DO(BUS) | D0 | 33 | A1 | D/O(I) | Phase Encoder pulse A1 | ||
| 2 | S3 | A/I | S3 input | 18 | D1 | DO(BUS) | D1 | 34 | B1 | D/O(I) | Phase Encoder pulse B1 | ||
| 3 | S1 | A/I | S1 input | 19 | D2 | DO(BUS) | D2 | 35 | ERRHLD | D/O | Anomaly detection (hold) | ||
| 4 | COSMNTB | A/O | COS monito（reversal） | 20 | D3 | DO(BUS) | D3 | 36 | DGND | ― | Digital GND | ||
| 5 | SINMNTB | A/O | SIN monito（reversal） | 21 | D4 | DO(BUS) | D4 | 37 | XTAL | ― | Resonator connection | ||
| 6 | S2 | A/I | S2 input | 22 | D5 | DO(BUS) | D5 | 38 | CLKIN | D/I | Ext. clock input | ||
| 7 | S4 | A/I | S4 input | 23 | D6 | DO(BUS) | D6 | 39 | VREGC | ― | Internal power supply | ||
| 8 | SINMNT | A/O | SIN monitor | 24 | D7 | DO(BUS) | D7 | 40 | VCC | ― | Analog power supply | ||
| 9 | AGND | ― | Analog GND | 25 | VDD | ― | Digital power supply | 41 | RI4 | A/I | R4 input | ||
| 10 | TEST2 | D/I | Test terminal | 26 | RD（INHB） | D/I | Read (Inhibit) | 42 | RI2 | A/I | R2 input | ||
| 11 | TEST1 | D/I | Test terminal | 27 | CSB | D/I | Chip select | 43 | R4 | A/O | R4 output | ||
| 12 | ERRSTB | D/I | Error reset | 28 | TX/SO | D/O | Serial communication 1 | 44 | R2 | A/O | R2 output | ||
| 13 | DBSEL0 | D/I | BUS output select 0 | 29 | RX/SI | D/I | Serial communication 1 | 45 | R1 | A/O | R1 output | ||
| 14 | DBSEL1 | D/I | BUS output select 1 | 30 | TXEN/SCSB | DO/DI | Serial communication 1 | 46 | R3 | A/O | R3 output | ||
| 15 | DBSEL2 | D/I | BUS output select 2 | 31 | SCK | D/I | Serial communication 1 | 47 | RI1 | A/I | R1 input | ||
| 16 | DBSEL3 | D/I | BUS output select 3 | 32 | Z1 | D/O(I) | Phase Encoder pulse Z1 | 48 | RI3 | A/I | R3 input |
Note:
１．“No.” corresponds to the pin number of terminal.
２．“Class” means the following :
*A/I : Analog input
*A/O : Analog output
*A/O (I) : Analog output (I/O is switched by control terminal input.)
*D/I : Digital input
*D/O : Digital output
*D/O (I) : Digital output (Input is added internally.)
*D/O (BUS) : Digital output (3-state output)
３． No.10 TEST2 signal and No. 11 TEST1 signal are signals that do not directly participate in operations, and normally, TEST1 is bypassed with the digital power supply (VDD) and TEST2 with digital GND (DGND).
When they are not connected to anything, they are internally pulled up or pulled down respectively.
VRDC （AUA6800） Evaluation Board ｜ AUA6900
If you wish to monitor the angle output on a PC or change the settings of the non-volatile memory, please also purchase the separately sold communication module (AUA0290).
・RoHS
・Power supply: DC＋3.3V ±0.3V
Note :
Operation is not guaranteed as this product is for the evaluation test.For details, please contact the Sensortronics Laboratory.
Outline
Dememsion ：mm
External Connection
Communication Module｜ AUA0290
A communication module for connecting AUA6900 and a PC.
It allows you to monitor the angle output of the VRDC (AUA6800) and change the settings of the non-volatile memory.
Function
- By combining with the evaluation board (AUA6900), serial communication with the VRDC is possible.
- Display function for angle data and speed data.
- Function for changing the settings of the VRDC's MTP memory.
- Error display and error reset operations for the VRDC are possible.
- Monitor terminal capable of parallel output and pulse output equivalent to encoder signals.
- Power supply to the VRDC is possible through USB bus power or external power connection.
Outline
External Connection
Example of Evaluation Setup
（NOTES）
・This product is intended to be used in combination with the VRDC evaluation board (AUA6900) for evaluating the VRDC, and does not guarantee the performance as a final product.
・When connecting to the evaluation board (AUA6900), please be careful with the orientation. Also, when disconnecting, be careful not to damage the connector.
Evaluation Software
We provide dedicated software that allows you to display the angle data of the VRDC (AUA6800) and modify the built-in non-volatile memory and configuration registers from a PC. The software can be downloaded free of charge from our website.
