MLX90363 Datasheet, PDF (46/57 Pages) Melexis Microelectronic Systems – Triaxis® Magnetometer IC With High Speed Serial Interface

MLX90363
Triaxis® Magnetometer IC
With High Speed Serial Interface
19.4. Automatic Gain Control
The Virtual Gain code is updated at every GET message. The new code value is based on the field
strength (Norm) of every raw component (X, Y, Z).
The Automatic Gain Control (AGC) makes sure that Norm is between 47% and 63.5%, by controlling the
gain code within the range (VIRTUALGAINMIN, VIRTUALGAINMAX).
The algorithm gives a limitation in term flux density frequency, see Section 10 for specification.
It is not recommended to interrupt the GET message sequence, because AGC iterations are triggered by
GET messages. If a pause cannot be avoided, the (E1, E0) error bits of the 6 following GET messages
shall be ignored.
3901090363
Rev. 005
Page 46 of 57
Data Sheet
Jul/13