4 Quick Start Procedure
CAUTION
DO NOT TURN ON POWER SUPPLY UNTIL ALL CONNECTIONS TO THE DEVICE ARE MADE
TO THE BOARD.
The following connections are made using a split supply configuration. Split supply configuration is
advantageous for measurement purposes. The reference voltage can be set to GND, while the other input
can be set to an AC waveform that toggles between negative and positive voltage at a 0-DC offset. Thus, the
output will be toggling whenever the AC waveform crosses 0 V.
This configuration allows for 2 distinct advantages compared to a single supply input. The first advantage is that
the reference voltage is at GND; a non-noisy voltage level. If the reference voltage level needs to be changed in
relation to the supplies, the supply voltages can be altered instead. The second advantage being able to zoom
into the input as much as possible due to the 0 DC offset of the waveform.
Below are the procedures for making a propagation delay measurement using channel A.
1. Set power supply positive terminal to 2.5 V and negative terminal to -2.5 V. Disable power supply output.
2. Connect positive terminal supply to TP1, negative terminal to TP2, and GND to TP3 or TP4.
3. Ensure that cables connecting to INA+SENSE and OUTA are matched length and impedance. Perform any
deskewing if necessary.
4. Set the function generator to produce a square wave output with 100 m Vpp at 1 MHz, with a DC offset of 0
V. Disable the signal generator output. Connect the output to IN+.
5. Connect IN- to GND through an SMA 50 Ω termination barrel.
6. Connect OUTA to a 50 Ω terminated scope channel.
7. Connect IN+SENSE to a 50 Ω terminated scope channel.
8. Enable the power supply and the signal generator.
9. Verify the total supply current is < 50 mA.
10. Monitor and verify the input from INA+SENSE.
11. Monitor and verify OUTA.
Quick Start Procedure
SNOU193 – MAY 2022
TLV3602EVM User's Guide
5
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