Fig. 9-2 Simplified Diagram Of The Output Channel Characteristics - ETAS ES930.1 User Manual

ETAS
9.2 Properties
The digital output channels can provide signal frequencies in the range from
1 Hz to 60 kHz. The minimum pulse width is restricted to 150 ns. This restric-
tion prevents the generation of spikes on the output channels.
9.2.1 Output Restrictions
Fig. 9-2 on page 56 describes the rising and falling edge of an output signal.
Voltage
4 V -
3 V -
2 V -
1 V -
0 V -
Fig. 9-2
Symbol Description
t
OUTR
t
OUTF
t
OUTP
1)
: measured directly at the connection of the module, 470 pF load
2)
: with control of Half-bridges
Tab. 9-1
An additional capacitive load on an output channel increases the rise and fall
times. For this reason, it is recommended that you use cables with a maximum
length of 4 m.
ES930.1 - User Guide
t
OUTR
t
OUTP
Simplified Diagram of the Output Channel Characteristics
Output channel rise time
Output channel fall time
Output channel pulse high time
Digital Output Channels – Rise and Fall Time
Digital Output Channels ("DO" Connection)
90 % of Signal R ange
10 % of Signal R ange
t
OUTF
Typ.
200 ns
200 ns
150 ns
2.5 s
Time
1)
2)
56