Interface to Sin/Cos Encoders with High-Resolution Position Interpolation Reference Design
Description
The TIDA-00176 reference design is an EMC compliant industrial interface to Sin/Cos position encoders. Applications include industrial drives: which require accurate speed and position control. The design utilizes a 16-bit dual sample ADC with drop-in compatible 14- or 12-bit versions available: allowing for optimization of performance and cost. TIDA-00176 is also provides a simple to connection to external processors using SPI and QEP interfaces and allows for the use of optional: embedded ADCs. For quick evaluation an example firmware for Piccolo F28069M MCU LaunchPad is provided: which outputs the measured angle from the Sin/Cos encoder with up to 28-bit resolution through the MCU’s USB virtual COM port.
Features
- EMC Compliant Industrial Interface Design for Sin/Cos Encoders with 1Vpp Differential Output at 2.5-V Offset: Input Frequencies up to 500-kHzHigh-Resolution Interpolated Position: up to 28-bits Resolution: Cable Length Tested up to 70mDual Analog Signal Chain for Simultaneous Use of 16-bit Dual SAR ADC and MCU Embedded ADCs Allows for Evaluation of Both Paths and/or Optimization of One Path for Increased Noise Immunity with Reduced BandwidthEasy to Connect to MCU with SPI and QEP Interface and Option for Cost Optimization pending Resolution Requirements: Thanks to Drop-in Compatible 14- or 12-bit ADC Example Firmware for C2000 MCU with High-Resolution Angle Calculated at 16-kHz and Angle Data Send via USB virtual COM Port for Easy Performance EvaluationTested for IEC61000-4-2:4-4 and 4-5 (ESD: EFT and Surge EMC Immunity Requirements)
Applications
- Closed loop stepper
- Servo drive position feedback
- Servo drive control module
- Off-highway vehicles electric drive
- Traction inverter motor control
- AC drive position feedback
- Servo drive position sensor
- Linear motor segment controller
- Linear motor position sensor
- Servo drive functional safety module
- 2-wheeler & 3-wheeler traction drive
- Robot servo drive
Product Categories
- Data converters
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| Download the bill of materials for TIDA-00176 | Download |
Test Data
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Download the test file for TIDA-00176| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| TIDA-00176 Assembly Drawing | 10 Jun 2015 | 388 | ||
| TIDA-00176 Gerber | 10 Jun 2015 | ZIP | 1051 | |
| TIDA-00176 CAD Files | 10 Jun 2015 | ZIP | 3771 | |
| TIDA-00176 PCB | 10 Jun 2015 | 3063 | ||
| TIDA-00176 BOM | 10 Jun 2015 | 48 | ||
| TIDA-00176 Schematic | 10 Jun 2015 | 758 |