background image

USB2ANY

POWE R SUPPLY  

(Optiona l)

www.ti.com

System Setup

5

SLAU818 – November 2019

Submit Documentation Feedback

Copyright © 2019, Texas Instruments Incorporated

DAC80502 Evaluation Module

2.2

Hardware Setup

This section provides the overall system setup for the EVM. A PC runs software that provides an interface
to the USB2ANY platform. This platform generates the optional 3.3-V power and digital signals used to
communicate with the EVM board. Connectors are included on the EVM board for external power
supplies.

Figure 3

displays the system setup for the DAC80502EVM.

Figure 3. Hardware Setup

2.2.1

Power Configurations

The DAC80502EVM provides electrical connections to the device supply pins. The connectors and
optional configurations are shown in the

Table 4

The headroom between the reference and the power

supply must be maintained. See the

DAC80502 data sheet

for details.

Table 4. Power Supply Inputs

DAC80502EVM

Connector

Supply Name

Voltage Range

J2.1

VDD

2.7 V to 5.5 V

J2.2

GND

0 V

JP1.2 (Default)

USB_3p3

3.3 V from USB2ANY.

NOTE:

The REF-DIV bit must be 1 so that the internal 2.5-V

reference is divided by 2 to meet the headroom requirements.
The maximum output possible in this mode is 2.5 V.
Use a 5-V external VDD on J2 for a higher voltage swing.

2.2.2

Connecting the Hardware

Connect the USB cable from the USB2ANY platform to the PC. To connect the USB2ANY to the EVM
board, align and firmly connect the keyed ribbon connector to the J1 connector. Verify the connection is
snug; loose connections may cause intermittent operation.

2.2.3

Electrostatic Discharge Warning

Many of the components on the DAC80502EVM are susceptible to damage by electrostatic discharge
(ESD). Observe proper ESD handling precautions when unpacking and handling the EVM, including the
use of a grounded wrist strap at an approved ESD workstation.

Содержание DAC80502

Страница 1: ...aracteristics operation and use of the DAC80502EVM evaluation module EVM This EVM is designed to evaluate the performance of the DAC80502 buffered voltage output DAC in a variety of configurations Thr...

Страница 2: ...4 3 Hardware Setup 5 4 DAC80502EVM Hardware Block Diagram 6 5 DAC80502EVM GUI Location 8 6 GUI Connection Detection 8 7 Page Selection 9 8 Low Level Configuration Page 9 9 Low Level Configuration Pag...

Страница 3: ...ts of DAC80502EVM Kit Item Quantity DAC80502EVM evaluation board PCB 1 Table 2 Required Components Not Included With Kit Item Quantity USB2ANY interface adapter 1 The USB2ANY interface adapter can be...

Страница 4: ...vailable through the DAC80502EVM product folder After the software is downloaded onto the PC navigate to the DAC80502EVM folder and run the Setup_DAC80502_EVM exe file as shown in Figure 1 When the so...

Страница 5: ...y must be maintained See the DAC80502 data sheet for details Table 4 Power Supply Inputs DAC80502EVM Connector Supply Name Voltage Range J2 1 VDD 2 7 V to 5 5 V J2 2 GND 0 V JP1 2 Default USB_3p3 3 3...

Страница 6: ...1 Theory of Operation for the DAC80502EVM Hardware The block diagram of the DAC80502EVM board is displayed in Figure 4 The EVM board connects to external power supply VDD either through USB2ANY 3 3 V...

Страница 7: ...test points Table 5 provides the pin definitions for this connector Table 6 provides the corresponding test points for the SPI signals Table 5 J1 USB2ANY Pin Definitions Pin Signal Description 1 GPIO...

Страница 8: ...1 Starting the Software To launch the software locate the Texas Instruments folder in the All Programs menu and select the DAC80502 EVM icon Figure 5 DAC80502EVM GUI Location Figure 6 shows that If t...

Страница 9: ...tch between the pages with each page representing a feature of the software Figure 7 Page Selection 3 2 2 1 Low Level Configuration Page The DAC80502 EVM Register Map page shown in Figure 8 allows the...

Страница 10: ...ttons are displayed in Figure 9 Figure 9 Low Level Configuration Page Options If Immediate is selected under Update Mode all changes to register values update immediately The Deferred option allows th...

Страница 11: ...tation Feedback Copyright 2019 Texas Instruments Incorporated DAC80502 Evaluation Module 4 Schematic PCB Layout and Bill of Materials This section contains the complete bill of materials PCB layout an...

Страница 12: ...Bill of Materials www ti com 12 SLAU818 November 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated DAC80502 Evaluation Module 4 2 PCB Components Layout Figure 12 PCB La...

Страница 13: ...B Layout and Bill of Materials 13 SLAU818 November 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated DAC80502 Evaluation Module Figure 13 PCB Layout Top Layer Figure 14...

Страница 14: ...X 0 20 Clear Transparent Bumpon SJ 5303 CLEAR 3M J1 1 Header shrouded 100mil 5x2 Gold SMT SMT Header 52601 S10 8LF FCI J2 J3 J4 3 Terminal Block 3 5mm Pitch 2x1 TH 7 0x8 2x6 5mm ED555 2DS On Shore Tec...

Страница 15: ...change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of thes...

Отзывы: