Introduction
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2
SNAU231 – February 2018
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Copyright © 2018, Texas Instruments Incorporated
LM48580 Evaluation Module
1
Introduction
To help the user investigate and evaluate the LM48580 performance and capabilities, a fully-populated
demonstration board was created.
Figure 1
shows the board.
Connected to an external power supply (2.5 V
≤
V
DD
≤
5.5 V) and a signal source, the LM48580
demonstration board easily exercises features of the amplifier.
Figure 1. LM48580 Demonstration Board
2
Quick Start Guide
Use the following steps to set up the EVM board in hardware mode:
1. Short pins 1 (VDD) and 2 of J1 for normal operation.
2. Short pins 1 (VDD) and 2 on J3 to set the GAIN to 30 dB.
3. Connect the load across OUT+ and OUT–.
4. Connect a power supply (2.5 V to 5.5 V) and ground reference, respectively, to the VDD and GND
headers on the demo board.
5. Connect a differential audio input to IN+ and IN–.
6. Power on the board and observe the output on OUT+ and OUT–.
