SM3470BB
The SM3470B is an interpolation IC for optical encoders. It accepts displacement detection, 2-phase analog signals (A and B phases) and a zero point detection analog signal (Z phase) from an encoder, interpolates the signals by a specified interpolation factor, and outputs corresponding 2-phase digital signals (A and B phases) and a zero point detection digital signal (Z phase). It incorporates a built-in EEPROM for interpolation switching and input signal adjustment functions, providing support for system miniaturization and high-speed input/output signal operation.
Evaluation and programming boards provide quick solution to evaluating and implementing into production.
SM3470BB.pdf
Evaluation and programming boards provide quick solution to evaluating and implementing into production.
Datasheets
SM3470BB.pdfBlock Diagram
Key Features
- Interpolation switching function : ×1, 2, 4, 5, 8, 10, 16, 20, 32 (selectable)
- Input frequency : 500kHz (max)
- Output frequency : 2.5MHz (max)
- Package : QFN24 (size: 4mm × 4mm)
- Supply voltage : 2.7 to 5.5V
- Current consumption : 25mA (typ)
- Operating temperature range : – 40 to +125°C
- Supported Differential input / output
- Digital output plus Analog signal output after signal conditioning
Applications
- ABZ encoder Interpolation
- 2-D and 3-D positioning (X-Y, T-X, X-Y-Z
- Precision Linear slides and Rotary mechanism
- Laser Targeting (medical or other)
- Metrology / Measuring equipment
