Data Sheet
Table Of Contents
- 1 FH3D02 Overview
- 2 Characteristics
- 3 Package and Circuit Connection
- 4 SPI Communication
- 5 List of Registers
- 5.1 Measurement Register Contents
- 5.1.1 0x000B (read/write) – Measurement Control
- 5.1.2 0x000E (read/write) – Measurement Start
- 5.1.3 0x0107 (read only) – Status Register
- 5.1.4 0x0110 (read only) – Temperature Sensor
- 5.1.5 0x0111 (read only) – Bi0 Magnetic Field
- 5.1.6 0x0112 (read only) – Bi1 Magnetic Field
- 5.1.7 0x0113 (read only) – Bj0 Magnetic Field
- 5.1.8 0x0114 (read only) – Bj1 Magnetic Field
- 5.1.9 0x0120 (read only) – Magnetic Field Magnitude
- 5.1.10 0x0121 (read only) – Magnetic Field Angle
- 5.1.11 0x0122 (read only) – Linearized Angle / Bz1 Field (Special Function Mode)
- 5.1.12 0x0124 (read only) – Bz0 Magnetic Field (Special Function Mode)
- 5.2 Result Register Overview
- 5.1 Measurement Register Contents
- 6 Measurement Modes
- 6.1 Single Magnetic Probe
- 6.2 Dual Magnetic Probe
- 6.3 Linear Position or Off-Axis Angle Sensor (Absolute Field Values, Magnet On-Top)
- 6.4 Linear Position or Off-Axis Angle Sensor (Gradient Field Values, Magnet On-Top)
- 6.5 Linear Position or Off-Axis Angle Sensor (Absolute Field Values, Magnet At-The-Side)
- 6.6 Linear Position or Off-Axis Angle Sensor (Gradient Field Values, Magnet At-The-Side)
- 7 Additional Features
- 8 LZE GmbH
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List of Registers
5.1.2
0x000E (read/write) – Measurement Start
Single shot measurements are started by SPI command 0x800E-0x0001. The last rising SCK edge
triggers the measurement. The measurement completion is indicated by a READY rise. The same
information is available as bit Ready of register 0x0107 (see section 5.1.3). It can be polled if connection
of pin READY shall be omitted. READY is reset to logical 0 if register 0x0122 is read. A new
measurement can be started now.
Timing diagram for single shot measurement cycle. Use CS_N and SCK according to SPI protocol (section 4.1). Values shown as
0x**** depend on settings and results. For IDD values refer to chapter 2.4.
Continuous measurements are started by SPI command 0x800E-0x0002. The last rising SCK edge starts
the measurement loop. Every measurement completion is indicated by a READY rise. A new
measurement is started immediately. The measurement loop is stopped by SPI command 0x800E-
0x0000.
Timing diagram for continuous measurement cycle. Use CS_N and SCK according to SPI protocol (section 4.1). Values shown as
0x**** depend on settings and results. For IDD values refer to chapter 2.4.
Parameter
Symbol
Min
Typ
Max
Unit
Note
Measurement time
t
meas
1 1.07
ms
TableSelect:
0b00, 0b10, 0b11
t
meas
2 2.13
ms
TableSelect:
0b01
Startup time
t
res1
25 80 200
µs
Do not apply SCK rise
before t
res1
!
Measurement
timing values