E981.07 Datasheet, PDF (16/46 Pages) ELMOS Semiconductor AG – Two independent operating channels

Two Channel Sensor Interface PSI5
ADVANCE PRODUCT INFORMATION JUL 26, 2011
4.2.2 Sync Pulse Generation
E981.07
No.
Parameter
Symbol
Condition
Min. Typ. Max. Unit
1
Sync Pulse rise time tSAT_SYNC_ris Transition from 10% to 90% of
with resistive load e
pulse amplitude, C=14.7nF,
Rload=400Ω
3
4
6
μs
2
Sync slope slew rate tSL_rise
rise
See Figure 5.1-4
24nF < CBUS, max <107nF,
4mA<ISAT_Q <35mA ①
0.43
1
1.5 V/μs
3
Sync slope slew rate tSL_fall
fall
See Figure 5.1-4
-1.5
-1
V/μs
4 Delay time of the
tSYNC_DEL programmable in steps of 0.5 µs+/- 3.75
4
4.25 μs
satellite interfaces
250ns
default is 4 µs, see figure 5.1-6
and chapter 5.2.6.2.5
① Note that the slew rate is dependent on the external capacitor and the difference of the load current and the
current limitation 4.1.3.8 ( I=C*du/dt).
Measurement condition: (VSAT_OUT_X (@Vt2=3.5V)-VSAT_OUT_X (@Vt0=0.5))/ (t2-t0) See Figure 5.1-4
4.2.3 Digital Outputs SPI
No.
Parameter
Symbol
Condition
Min. Typ. Max. Unit
1 Data output access time MISO ta
C=<80pF①
-
-
35
ns
2
Data output (MISO) valid after tV_5V
C=<80pF, VCC=5V① ➁
-
SCK
-
30
ns
2a Data output (MISO) valid after tV_3V3
C=<50pF, VCC=3.3V① ③
-
SCK
-
30
ns
2b Data output (MISO) valid after tV_3V3
C=<80pF, VCC=3.3V① ③
-
SCK
-
45
ns
2c Data output (MISO) valid after tV_3V3
C=<50pF, VCC=5V① ③
-
SCK
-
23
ns
3
Data output (MISO) lag time
tMISO_lag _C=<80pF①
0
-
-
ns
4 Data output (MISO) disable time tdis
C=<80pF① ④
-
-
50
ns
① to be tested by appropriate SPI-protocols during production test
➁SCK input 2.4V/0.4V; MISO 10% / 90% of VCC
③ SCK input 2.4V/0.4V; MISO 20% / 80% of VCC
④ Measurement condition: 1k Pull-Up resp. Pull-down resistor on pin MISO. Measurement from 90%CSB to
10%MISO rise, resp. 90% MISO fall (see Figure 5.2-4)
ELMOS Semiconductor AG
Data Sheet 16 / 45
QM-No.: 25DS0050E.00
This document contains information on a new product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice.