Datasheet

TMC4671 Datasheet • IC Version V1.00 | Document Revision V1.03 • 2018-Sept-06

39 / 158

4.7.8 Analog Hall and Analog Encoder Interface (SinCos of 0° 90° or 0° 120° 240°)

An analog encoder interface is part of the decoder engine. It is able to handle analog position signals of 0

and 90° and of 0° 120° 240°. The analog decoder engine adds oﬀsets and scales the raw analog encoder

signals, while also calculating the electrical angle PHI_E from these analog position signals by an ATAN2

algorithm.

An individual signed oﬀset is added to each associated raw ADC channel and scaled by its associated

scaling factors according to

AENC_VALUE = (AENC_RAW + AENC_OFFSET) · AENC_SCALE (19)

In addition, the AENC_OFFSET is for conversion of unsigned ADC values into signed ADC values as required

for the FOC.

Figure 20: Analog Encoder (AENC) Selector & Scaler w/ Oﬀset Correction

Terms of delivery and rights to technical change reserved.

Download newest version at www.trinamic.com