SM3470BB Datasheet, PDF (1/19 Pages) Nippon Precision Circuits Inc – Interpolation Encoder IC

SM3470BB
Interpolation Encoder IC
OVERVIEW
The SM3470B is an interpolation IC for 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.
FEATURES
▪ Interpolation switching function: ×1, 2, 4, 8, 16, 32, 5, 10, 20 (selectable)
▪ Adjustment function: Offset adjustment
▪ Supply voltage: 2.7 to 5.5V
▪ Operating temperature range: –40 to +125°C
▪ Input frequency: 500kHz (max)
▪ Output frequency: 2.5MHz (max)
▪ Package: QFN24 (size: 4mm × 4mm)
ORDERING INFORMATION
Device
Package
SM3470BB-G^*1
24 pin QFN
*1. “-G” option code lead-free package
PACKAGE DIMENSIONS
0.2 S A
4.00±0.1
A
B
0.75
C0.11
2.40 ±0.1
C0.03
0.15
// 0.2 S
S
0.08 S
0.50
0.22±0.05
0.05 M S AB
[unit:mm]
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