Features

1-2

1.1

Features

This EVM features the DAC7573, DAC6573 and DAC5573 family of

digital - to - analog converters. In this user’s guide, the EVM is referred to as the

DACx573 EVM to cover all supported DAC parts. The DACx573 EVM provides

a quick and easy way to evaluate the functionality and performance of these

The following table shows the three DAC types this EVM supports. The EVM

microprocessor- or TI DSP-based system.

Table 1 - 1. Featured DAC Selections

EVM Version

Installed Device (DUT)

DAC Channels

Resolution

DAC7573 EVM

DAC7573IPW

4

12-Bit

DAC6573 EVM

DAC6573IPW

4

10-Bit

DAC5573 EVM

DAC5573IPW

4

8-Bit

1.2

Power Requirements

This section describes the power requirements of this EVM.

1.2.1

Supply Voltage

typically 5 V, connected via J5-1 or J6-10 when used with another EVM or

interface card. It is referenced to ground through the J5-2 and J6 - 5 terminals.

The power supply requirements for the analog section of this EVM are as

follows:

through J1-3 and J1-1 respectively, or through the J6-1 and J6-2 termi-

nals.

The 5-VA supply connects through J5-3 or J6-3 and the 3.3-VA supply con-

nects through J6-8.

All analog power supplies are referenced to analog ground through the

J1-2 and J6-6 terminals.

The analog power supply for the device under test (DUT), U1, can be supplied

by either 5 VA or 3.3 VA via jumper W1. This allows the DACx573 analog

section to operate from either supply while the I/O and digital section is

operational amplifier (op amp), U2, the reference chip, U3, and the reference

buffer, U8. The negative rail of the output op amp, U2, can be selected between

to provide output signal conditioning, to boost capacitive load drive (via W15),

and for other output-mode requirements.