AS5170 datasheet(25/47 Pages) AMSCO

номер детали	AS5170

подробное описание детали	Accurate angle measurement

PDF	47 Pages

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производитель	AMSCO [ams AG]

домашняя страница	http://www.ams.com

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ams Datasheet

Page 25

[v1-01] 2016-Apr-11

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AS5170 − Register Description

SENT Output (AS5170B)

The AS5170B provides a SENT-compatible output (Single Edge

Nibble Transmission) interface which is compliant with the

SAE-J2716 standard (Jan-2010) and features the Single Secure

Sensor and the Single Sensor protocol (refer to SENT_J2716_

Standard - Appendix A.3 and A.4). SENT is a single-wire interface

based on a unidirectional communication scheme from the

sensor (transmitter) to the engine control unit (receiver). The

sensor constantly transmits data to the receiver.

The SENT interface can be enabled on the AS5170B with the

DIGOS setting.

The SENT frame consists of 8 nibbles in which each nibble is

made up by 4 bits. The duration of the nibbles is variable and

depends on its content and tick frequency. With the AS5170B,

the tick frequency is selected by the SENTTK setting, as shown

in Figure 33.

Figure 33:

SENT Tick Period

SENTTK

SENT Tick Period (µs)

00000

00001

00010

4.5

00011

00100

5.5

00101

5.75

00110

6.5

00111

6.75

01000

7.5

01001

01010

8.5

01011

01100

9.5

01101

01110

10.25

01111

10.5

10000

10.75

10001

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