TLE5012 Datasheet, PDF (46/57 Pages) Infineon Technologies AG – GMR-Based Angular Sensor for Rotor Position Sensing

Y-raw Value Register
TLE5012
Specification
ADC_Y
Y-raw value

Offset
11_H
$'&B<
U
Reset Value
0000_H

Field
ADC_Y
Bits
Type Description
15:0
r
ADC value of Y-GMR
Updated when ADC_X or ADC_Y is read.
Reset: 0_H
3.5.2 Pulse Width Modulation Interface
The Pulse Width Modulation (PWM) Interface can be selected by connecting CLK to V_DD.
The PWM update rate can be programmed within the register 0E_H (IFAB_RES) in following steps:
• 0.25 kHz with 12 bit resolution
• 0.5 kHz with 11 bit resolution
• 1.0 kHz with 10 bit resolution (default)
• 2.0 kHz with 9 bit resolution
PWM uses a square wave with constant frequency whose duty cycle is modulated resulting in an average value
of the waveform.
Figure 21 shows the principle behavior of a PWM with different duty cycles and the definition of timing values. The
duty cycle of a PWM is defined by following general formulas:
Duty Cycle = ^ton
t _PWM
t_PWM = t_on + t_off
1
f _PWM
=
t _PWM
(3)
The range between 0 - 6.25% and 93.75 - 100% is used only for diagnostic purposes. More details are given in
Table 16.
Target Data Sheet
46
V 0.46, 2009-09