Signal Descriptions
2 ns Pulse
Board label:
2NS_PULSE
Grid location:
A8
Description:
This signal is a 2 ns to 3 ns, 2.5 V pulse at a 3.3 ms repetition rate. Use this signal to show the minimum pulse
width capture speci
fi
cation of an instrument digital acquisition system.
2 ns Pulse Trigger
Board label:
2NS_TRIG
Grid location:
A8
Description:
This is the trigger edge signal for the 2 ns pulse. A falling edge on this signal occurs approximately 5 ns
before the 2 ns pulse.
40 MHz
Board label:
40_MHZ
Grid location:
A8
Description:
This is a 40 MHz square wave signal.
AM Modulation
Board label:
AM_MOD
Grid location:
A4
Description:
This is a 1.25 MHz carrier amplitude signal modulated by a 1.25 kHz sine wave signal.
The AM Mod signal is centered around ground.
Set the oscilloscope trigger level to either the top or bottom of the waveform to stabilize it on the display.
ASK_MOD
Board label:
ASK_MOD
Grid location:
F12, H11
Description:
This is a digital modulation signal that is used to amplitude modulate the RF output when the board is in the
ASK Modulation demo mode. When it is high, the RF is on. When it is low, the RF is off
CAN Bus
Board label:
CAN_H, CAN_L
Grid location:
A4, A5, A7
Description:
These are the CAN (Controller Area Network) bus signals between two CAN transceivers.
The bit rate of the data packet is 500 kbps.
Tektronix MDO Demo 1 Board Instruction Manual
7
