9 Parameter Measurement Information

Figure 9-1 Driver Voltage, Current and Test Definitions

Figure 9-2 Bus Logic State Voltage Definitions

Figure 9-3 Driver Test Circuit and Voltage Waveforms.

The input pulse is supplied by a generator having the following characteristics: PRR ≤ 125 kHz, 50% duty cycle, tr ≤ 6 ns, tf ≤ 6 ns, ZO = 50 Ω.

Figure 9-4 Receiver Voltage and Current Definitions

A. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 125 kHz, 50% duty cycle,
t_r ≤ 6 ns, t_f ≤ 6 ns, Z_O = 50 Ω.

Figure 9-5 Receiver Test Circuit and Voltage Waveforms

Table 9-1 Receiver Differential Input Voltage Threshold Test

INPUT			OUTPUT
V_CANH	V_CANL	\|V_ID\|	RXD
-11.5 V	-12.5 V	1000 mV	L	V_OL
12.5 V	11.5 V	1000 mV	L
-8.55 V	-9.45 V	900 mV	L
9.45 V	8.55 V	900 mV	L
-8.75 V	-9.25 V	500 mV	H	V_OH
9.25 V	8.75 V	500 mV	H
-11.8 V	-12.2 V	400 mV	H
12.2 V	11.8 V	400 mV	H
Open	Open	X	H

Figure 9-6 t_LOOP and CAN FD Timing Parameter Measurement

A. The input pulse is supplied by a generator having the following characteristics: t_r ≤ 6 ns, t_f ≤ 6 ns, Z_O = 50 Ω.

Figure 9-7 Dominant Time-out Test Circuit and Voltage Waveforms

Figure 9-8 Driver Short-Circuit Current Test Circuit and Waveforms

Figure 9-9 Common-Mode Transient Immunity Test Circuit

A. V_CCI and V_CCO refers to the power supplies V_IO and V_ISOIN, respectively. C_L = 15 pF and The input pulse is supplied by a generator having the following characteristics: PRR ≤ 50 kHz, 50% duty cycle, t_r ≤ 3 ns, t_f ≤ 3ns, Z_O = 50 Ω. At the input, 50 Ω resistor is required to terminate Input Generator signal. It is not needed in actual application.

B. B. C_L = 15 pF and includes instrumentation and fixture capacitance within ±20%.

Figure 9-10 Switching Characteristics Test Circuit and Voltage Waveforms