Quick Start Procedure; Figure 5-1. Tlv3601 Evm Quick Start Setup - Texas Instruments TLV3601EVM User Manual

Quick Start Procedure

5 Quick Start Procedure
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 toggles.
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.
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.
3. Ensure that cables connecting to IN+SENSE and OUT are matched length and impedance. Perform any
deskewing if necessary.
4. Set the function generator to produce a square wave output with 100mVpp 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 OUT to a 50Ω terminated scope channel.
7. Connect IN+SENSE to a 50Ω terminated scope channel.
8. Enable the power supply and the signal generator.
9. Verify the supply current is < 60 mA.
10. Monitor and verify the input from IN+SENSE.
11. Monitor and verify OUT.
High Speed Oscilloscope
(50 Ohm Termina o ns)
¡
CH. 1 CH. 2
BNC-SMA
Note: The IN+ Sense
(J3) cable and OUT (J5)
cable should be length
matched
+2.5V
DC Power Supply
6 TLV3601EVM User's Guide
GND
-2.5V

Figure 5-1. TLV3601 EVM Quick Start Setup

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CAUTION
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SMA GND Barrel
High Speed Pulse Generator
(>500 ps Rise/Fall Time)
SNOU183 – MAY 2021
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