DAC7573IPW datasheet(11/26 Pages) TI

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EVM Basic Functions

1-3

EVM Overview

Caution

To avoid potential damage to the EVM board, make sure that the

correct cables are connected to their respective terminals as

labeled on the EVM board.

Stresses above the maximum listed voltage ratings may cause

permanent damage to the device.

1.2.2

Reference Voltage

The 5-V precision voltage reference is provided to supply the external voltage

reference for the DAC through REF02, U3, via jumper W4 by shorting pins 1

and 2. The reference voltage goes through 100-k

Ω potentiometer R11 in

series with 20-k

Ω R10 to allow the user to adjust the reference voltage to a

desired level. The voltage reference is then buffered through U8A to the DUT.

Test points TP1, TP2, and TP5 are also provided, as well as J4- 18 and J4- 20,

to allow the user to connect another external reference source if the onboard

reference circuit is not used. The external voltage reference must not exceed

5 Vdc.

The REF02 precision reference is powered by VCC (15 V) through the J1-3

or J6 - 1 terminal.

Caution

When applying an external voltage reference through TP1 or J4- 20,

make sure that it does not exceed 5 V maximum. Otherwise, this

can permanently damage the installed device under test (DUT).

1.3

EVM Basic Functions

The DACx573 EVM is a functional-evaluation platform to demonstrate the

operation of the DACx573 family of digital - to - analog converters. Functional

evaluation of the DAC device can be conducted with any microprocessor, TI

DSP, or a waveform generator.

Header connectors J2 and P2 allow control signals and data from a host

processor or waveform generator to interface with the DACx573 EVM using

a custom-built cable.

Specific adapter interface boards are also available for many TI DSP Starter

Kits (DSKs). Specify the correct adapter interface board for the TI DSP Starter

Kit to be used. In addition, an MSP430-based platform (HPA449) that uses the

MSP430F449 microprocessor is available that directly interfaces with this

EVM. For more information regarding the adapter - interface board or the

HPA449 platform, please call Texas Instruments or send email to

dataconvapps@list.ti.com.

DAC7573IPW Datasheet(PDF) 11 Page - Texas Instruments

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