tle5012 Infineon Technologies Corporation, tle5012 Datasheet - Page 50

• Manufacturer Part Number: tle5012
• Description: Gmr-based Angular Sensor For Rotor Position Sensing
• Manufacturer: Infineon Technologies Corporation

Figure 23
3.5.4
The Incremental Interface (IIF) uses an up/down counter of a microcontroller for the angle transmission. The
synchronization is done by the parallel active SSC-Interface. The angle value read out by the SSC-Interface can
be compared with the stored counter value. In case of a non-synchronization, the microcontroller add the
difference to the actual counter value to synchronize the TLE5012 with the microcontroller.
A/B Mode
The phase shift between phase A and B indicates a clockwise (B follows A) or a counterclockwise (A follows B)
rotation of the magnet.
Figure 24
Target Data Sheet
HS Hysteresis
Incremental Interface
Incremental Interface Protocol
Incremental
Interface
Interface
SPI
N
S
Phase A
Phase B
Counter
DATA
CSQ
SCK
GND
VDD
Sensor
iGMR-
V
V
V
V
H
L
H
L
SSC
0
INC
α
elect
D0
1
90° el. Phase shift
α
Ideal Switching Point
HShyst
D1
DATA
2
CSQ
SCK
IFA
IFB
D2
50
3
0°
α
D3
HShyst
4
SSC
D11
A
B
α
elect
D13
Up/Down
3
Counter
12bit
µC
D14
2
D15
1
V 0.41, 2009-02
Specification
TLE5012