AS5047D datasheet(19/37 Pages) AMSCO

Il numero della parte	AS5047D

Spiegazioni elettronici	14-bit On-Axis Magnetic Rotary Position Sensor with 11-bit Decimal

PDF	37 Pages

Scroll/Zoom	100%

Produttore elettronici	AMSCO [ams AG]

Homepage	http://www.ams.com

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19 / 37 page

ams Datasheet: 2014-Jun-27 [v1-02]

AS5047D – 19

Detaile d Desc rip t ion

ABI Incremental Interface

The AS5047D can send the angle position to the host

microcontroller through an incremental interface. This

interface is available simultaneously with the other interfaces.

By default, the incremental interface is set to work at the highest

resolution 2000 step per revolution, or 500 pulses per

revolution (ppr). It is possible to select between a decimal and

binary pulses per revolution, respectively with the bit ABIBIN

and select the pulses per revolution with the bit ABIRES as

shown in Figure 31.

Figure 31:

ABI Resolution Setting

The phase shift between the signals A and B indicates the

rotation direction: e.g. DIR-Bit = 0, clockwise (B leads, A follows)

or counterclockwise (A leads, B follows). During the start-up

time, after power on to the chip, all three ABI signals are high.

ABIRES

ABIBIN

Steps per revolution

Pulses per revolution

000

2000

500

001

1600

400

010

1200

300

011

800

200

100

400

100

101

200

110

100

111

000

2048

512

001

1024

256

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