SM3470BB Datasheet (NPC) - Interpolation Encoder

SM3470BB, Interpolation Encoder

Pin No.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 *.

I: Input pin Name VSS NC VDD DA DB DZ IO1 NC NC IO2 IO3 VPP DATA CLK CE NC NC NC ZN Z AN A BN B TP O: Output pin I/O Function - Ground - No connection - Power supply O Displacement detector signal output (A) O Displa

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 adju

SM3470BB 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 × 4m