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3.4 Power-Supply Options
The TLA2024 supports a wide range of supply voltage from 2 V to 5.5 V. The TLA2024EVM ADC voltage (VDD)
can operate from either 3.3 V or 5 V. The power is supplied from the USB 5-V source to the PAMBoard.
However, the USB power supply voltage is not consistent from PC to PC. A DC/DC converter increases the USB
output to 5.5 V. A linear low drop out (LDO) regulator uses the 5.5 V to establish a clean and stable 5 V and 3.3
V for the TLA2024EVM-PDK.
When the USB cable is plugged into the PC, two LEDs will light on the PAMBoard (see
LED (D5) indicates that the 5-V output is active. The top LED (D1) indicates that the TLA2024EVM-PDK is ready
to communicate with the GUI.
Jumper JP1 selects the operating voltage for the TLA2024 (see
position, the VDD to the TLA2024 is set to 5-V and when in the top position, the VDD supply is set 3.3-V.
SBAU368 – FEBRUARY 2021
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Figure 3-4. LED Indicators D1 and D5
Figure 3-5. TLA2024 Supply Setting Jumper (JP1)
Copyright © 2021 Texas Instruments Incorporated
Figure
Figure
3-5). When jumper JP1 is in the bottom
TLA2024EVM-PDK User's Guide
TLA2024EVM-PDK Overview
3-4). The bottom
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