Datasheet

TPS79601

LDO 3.3 V

To LVDS buffer for trigger

TPS79601

LDO Regultor

3.3 V

TPS79601

LDO 1.8 V

GND

5 V

JP12

Analog 3.3 V

VDD

Digital

VDD

To ADC

JP14

Analog 1.8 V

VDD

To ADC

JP15

Analog

VDD

To ADC

JP13

To ADC

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Introduction

1.2 EVM Power Supply

Figure 2 illustrates the power supply options available on the EVM. Jumpers are used to choose the

power supply options, with the default jumper positions indicated by the darker portion of the jumper that

represents the presence of the jumper.

The EVM requires a 5-V input supply, input directly to the banana jack, J7. From the 5-V supply rail, linear

low dropout (LDO) regulators are used to generate the 1.8 V for the analog and digital supplies for the

ADS540x, the 3.3 V for the 3.3-V analog supply of the ADS540x, and the 3.3-V supply needed for an

LVDS buffer to buffer the optional trigger signal into the ADS540x.

Figure 2. Simplified EVM Power Supply

SLAU450–July 2012 ADS540x and ADS54T0x Evaluation Module (EVM)

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