Tektronix TPS2012B, User Manual

Page: 79 / 184

Application Examples
Measuring Propagation Delay
You suspect that the memory timing in a microprocessor circuit is marginal. Set
up the oscilloscope to measure the propagation delay between the chip-select
signal and the data output of the memory device.
Type
Time
Source
CH1
Δ t 20.00ns
1/ Δ t 50.00MHz
Δ V 0.28V
Cursor 1
50.0ns
-0.20V
Cursor 2
70.0ns
0.08V
To set up to measure propagation delay, follow these steps:
1. Push the AutoSet to trigger a stable display.
2. Adjust the horizontal and vertical controls to optimize the display.
3. Push the Cursor to see the Cursor Menu.
4. Push Type ► Time .
5. Push Source ► CH1 .
6. Push the Cursor 1 option .
7. Turn the multipurpose knob to place a cursor on the active edge of the
chip-select signal.
TPS2000B Series Digital Oscilloscope User Manual 53