Section 1 Introduction Transmitter Requirements
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Transmitter Requirements
Table 2 lists the specifications for the Transmitter.
Receiver Requirements
Table 3 lists the specifications for the Receiver.
Table 2. Transmitter Specifications
Transmitter Characteristics Specifications
Differential Output level (nominal) 2.0 Volts p-p
Differential Output level (minimum)
(@ connector, 50 Ohms load)
1.5 Volts p-p
Minimum Recessive Bus voltage @ CAN_H and CAN_L 2.0 Volts
(1)
(1) Voltages at CAN_H and CAN_L are referenced to the transceiver IC ground pin. This voltage is higher than the
V- terminal by an amount equal to the voltage drop on the Schottky diode. The maximum voltage should not
exceed 0.6 V.
Maximum Recessive Bus voltage @ CAN_H and CAN_L 3.0 Volts
(1)
Transmitter delay 120 ns maximum opto(40)+xcvr(80)
Output short circuit protection internally limited
Table 3. Receiver Specifications
Receiver Characteristics Specifications
Differential Input Voltage Dominant 0.95 Volts minimum
Differential Input Voltage Recessive 0.45 Volts maximum
Hysteresis 150 mV typical
Receiver delay 130 ns max opto(40)+xcvr(90)
Operating voltage range -5 to +10 Volts (CAN_H, CAN_L)
(1)
(1) Voltages at CAN_H and CAN_L are referenced to the transceiver IC ground pin. This voltage
is higher than the V- terminal by an amount equal to the voltage drop on the Schottky diode.
The maximum voltage should be 0.6 V.
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