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The RPG module provides several possible configurations for the RP and CAM signals output stage. These choice are made available to the User via the Files and Rails tab of the Labview Configuration panel.

The possible output stage configurations are summarized in the table below :


Signal

0-5V

0-IGN1

±12V

Open Drain IGN1

Open Drain ECU 5V

Open Drain RPBVOpen Source 5VOpen Source IGN1Open Source 12V

CAM 1:4

x

x

x

x

x

xxxx

RP 1:3

x

x

x

x

x

xxxx

RP 4:8

x



x

x

xx

The FPGA module controls the Upper and Lower rail settings of the card, according to the value selected for each channel, as represented in this schematic :

The RP and CAM output signals have the following characteristics:

Characteristic

Units

0-5V , 0-IGN1 and ±12V outputsOpen Drain output

Load Impedance

ohms

>200>200

Load Capacitance

nF

>500>500

Rise time

nS

<20NA

Fall time

nS

<20<20

Overshoot

%

<5NA

Undershoot

%

<5NA

Accuracy

%

1NA

Max drive current

mA

>200>200


Anchor
rpbv
rpbv
Reference Pulse Bias Voltage (RPBV1:8

A user-supplied bias voltage can be used to reference the RP and CAM channels. The association between the RPBV pins and the RP and CAM channels is as follows:

Connector pin

Associated channel

RPBV1

RP1

RPBV2

RP2

RPBV3

RP3

RPBV4

RP4 to RP8

RPBV5

CAM1

RPBV6

CAM2

RPBV7

CAM3

RPBV8

CAM4