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.

Block Diagram

Datasheets

SM3470BB.pdf

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, Θ-X, X-Y-Z
Precision Linear slides and Rotary mechanism
Laser Targeting (medical or other)
Metrology / Measuring equipment

SM3470BB-G
$22.28

Add to Compare