B
Signal
Injection
^ _
/
v‰µš š}
network analyzer
^ _
/
v‰µš š}
network analyzer
A
Setup
5
SNVU702 – February 2020
Copyright © 2020, Texas Instruments Incorporated
LM63625QDRREVM EVM User’s Guide
1.2
Test Points
•
VINEMI -
Input supply to EVM. Connect to a suitable input supply.
•
GND -
System power ground
•
VOUT -
Power output of EVM. Connect to desired load.
•
VOS -
Output voltage sense connection. Connect to DMM.
•
VINS -
Input voltage sense connection. Connect to DMM.
•
GNDS -
Ground sense point for analog measurements. Connect to DMM.
•
EN -
Connected to the EN input of the device
•
RESET -
Connected to the RESET pin of the IC. It is used as a flag output. The reset function can be
monitored at this test point. Pull-up resistor, RPU, must be populated. A typical value for pullup resistor
is 100 k
Ω
.
•
SYNC/MODE -
Connected to the SYNC/MODE pin of the IC.
•
VCC -
Connected to the VCC output of the device. Can be used for logic level pullups, if needed.
•
OPEN PADS -
Connections for frequency response analyzer (on bottom of board) to take Bode plots.
See
for details of connections.
Figure 5. FRA Setup