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EVM Operation

6.3 ADS7953EVM-PDK Power Supply

The analog portion of the ADS7953EVM can either be powered by a 5V source generated via ac adapter

or by applying the +5VA to the connector on the MMB0 board. The MMB0 board will provide the digital 5V

and 3.3V to the ADS7953EVM. To provide +5VA to the ADS7953EVM from the MMB0 board, make sure

the jumper at J13 (on the MMB0) is closed from +5V to +5VA.

6.4 Default Jumper Settings

Figure 2 shows the jumpers found on the EVM and the respective factory default conditions for each.

Figure 2. ADS7953EVM Default Jumper Locations

Table 6 lists the jumpers found on the EVM and the respective factory default conditions for each.

Table 6. List of Jumpers

Switch Default Position Switch Description

W1 Open W1 is not installed in production boards

W2 selects the REFP source, onboard (default) or external via

W2 Short 1-2

P1.18

W3 selects the REFM source, AGND (default) or external via

W3 Short 1-2

P1.20

W4 selects the CH0 input configuration, buffered (default) or

W4 Short 1-2

bypassed

W5 selects the CS source on the ADS7953, FSX (default) or

W5 Short 1-2

CNTL

W6 Short 1-2 W6 selects the DV

Voltage, +5VD (default) or +3.3VD

W7 selects the host processor interrupt source, GPIO1 (default)

W7 Short 1-2

or GPIO0

SLAU262C– January 2009– Revised May 2011 ADS79xxEVM and ADS79xxEVM-PDK

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