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ADS1x48EVM Overview
Figure 3-2
also shows two diodes on the ADS1x48EVM that help indicate when power is valid. The top diode
(D1) denotes that the 3.3-V output is active. The bottom diode (D2) indicates that AVDD is active after the shunt
selection on jumper JP1 is made.
The ADS1x48 devices accept a digital supply voltage (DVDD) range from 2.7 V to 5.25 V. On the ADS1x48EVM,
the ADS1x48 DVDD is a fixed value of 3.3 V. As with AVDD, this 3.3-V DVDD is sourced from the USB
power-supply voltage and is used as the PAMBoard DVDD.
Figure 3-2. Jumper (JP1) Selects AVDD on the ADS1x48EVM
8
ADS1x48EVM Evaluation Module
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SBAU378A – SEPTEMBER 2021 – REVISED JANUARY 2022
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