TLE5012_10 Datasheet, PDF (56/64 Pages) Infineon Technologies AG – GMR-Based Angular Sensor for Rotor-Position Sensing

TLE5012
Specifications
VDD
CSQ
µC
N
SSC
SCK
SSC
iGMR-
DATA
S
Sensor
IFA
INC
IFB
A 12bit
B
Up/Down
Counter
SPI
Interface
GND
CSQ
SCK
DATA
D0 D1 D2 D3 D11 D13 D14 D15
90° el. Phase shift
Incremental
Interface
(A/B Mode)
Phase A ^VH
VL
Phase B ^VH
VL
Counter Value 0
1
2
3
4
32
1
Figure 26 Incremental Interface Protocol with symbolic illustration of SPI Interface
Index Signal
The Index Signal is generated via the Data pin while CSQ is high (no SSC communication). The Index Signal is
coded in quadrants via a PWM sequence, Figure 27.
0°
Angle
90°
180°
270°
0°
INDEX
t_0°
t_90°
Figure 27 IIF index coding
t_180°
t_270°
Table 24 Incremental Interface
Parameter
Symbol
Incremental output frequency
f_Inc
Min.
-
Values
Typ. Max.
-
1.0
Unit Note / Test Condition
MHz Frequency of Phase A and
Phase B¹⁾
Final Data Sheet
56
V 1.0, 2010-11