TLE5012 Datasheet, PDF (25/57 Pages) Infineon Technologies AG – GMR-Based Angular Sensor for Rotor Position Sensing

TLE5012
Specification
Another possibility is a 3-pin SSC Interface with bidirectional open-drain data line, serial clock signal and chip
select. This setup is designed to communicate with a microcontroller in a bus system, together with other SSC
slaves (e.g. two TLE5012 for redundancy reasons). This mode can be activated using bit SSC_OD.
(SSC Slave) TLE 5012
Shift Reg.
DATA ^*)
typ. 1kΩ
*)
MRST
µC (SSC Master)
Shift Reg.
SCK
MTSR
*)
SCK
Clock Gen.
CSQ
*)
*) optional , e.g. 100 Ω
CSQ
Figure 15 SSC Configuration in Sensor-Slave Mode and Open Drain (Safe Bus Systems)
3.5.1.1 SSC Timing Definition
tCSs
CSQ
SCK
t_SCKp
tSCKh
tSCKl
tCSh
tCSoff
DATA
Figure 16 SSC Timing
tDATAs tDATAh
SSC Inactive Time (CS_off)
The SSC inactive time defines the delay time after a transfer before the TLE5012 can be selected again.
Table 11 SSC Push-Pull Timing Specification
Parameter
Symbol
Min.
SSC Baud Rate
CSQ Setup Time
CSQ Hold Time
f_SSC
-
t_CSs
105
t_CSh
105
Values
Typ. Max.
8.0 -
-
-
-
-
Target Data Sheet
25
Unit Note / Test Condition
Mbit/s
ns
ns
V 0.46, 2009-09