background image

User's Guide

SLAU211A – March 2007 – Revised November 2009

DAC8560 Evaluation Module

This user’s guide describes the characteristics, operation, and the use of the DAC8560 evaluation module
(EVM). It covers all pertinent areas to properly use this EVM board along with the devices that it supports.
The physical PCB layout, schematic diagram, and circuit descriptions are included.

Contents

1

EVM Overview

...............................................................................................................

2

2

PCB Design and Performance

............................................................................................

4

3

EVM Operation

..............................................................................................................

8

4

Related Documentation from Texas Instruments

.....................................................................

15

5

Using the DAC8560 EVM with DXP

....................................................................................

15

6

Bill of Materials

.............................................................................................................

19

List of Figures

1

EVM Block Diagram

........................................................................................................

4

2

Top Silkscreen

...............................................................................................................

5

3

Layer 1 (Top Signal Plane)

................................................................................................

6

4

Layer 2 (Ground Plane)

....................................................................................................

6

5

Layer 3 (Power Plane)

.....................................................................................................

7

6

Layer 4 (Bottom Signal Plane)

............................................................................................

7

7

Bottom Silkscreen

...........................................................................................................

7

8

INL and DNL Characteristic Plot

..........................................................................................

8

9

DAC8560EVM Default Jumper Configuration

...........................................................................

9

10

DAC8560EVM Schematic

................................................................................................

14

11

MMB0 with DAC8560EVM Installed

....................................................................................

16

12

Loading a DAC8560EVM Configuration

................................................................................

17

13

DAC8560EVM: Frequency/Amplitude and Update Rate Adjustments

.............................................

18

14

DAC Output Update Options

.............................................................................................

19

List of Tables

1

Factory Default Jumper Settings

..........................................................................................

9

2

DAC Output Channel Mapping

..........................................................................................

10

3

Unity Gain Output Jumper Settings

.....................................................................................

11

4

Gain of Two Output Jumper Settings

...................................................................................

11

5

Capacitive Load Drive Output Jumper Settings

.......................................................................

12

6

Jumper Setting Functions

................................................................................................

12

7

Output Update Features

..................................................................................................

19

8

DAC8560EVM Parts List

.................................................................................................

19

Microsoft, Windows are registered trademarks of Microsoft Corporation.
LabVIEW is a registered trademark of National Instruments.
All other trademarks are the property of their respective owners.

1

SLAU211A – March 2007 – Revised November 2009

DAC8560 Evaluation Module

Submit Documentation Feedback

Copyright © 2007–2009, Texas Instruments Incorporated

Summary of Contents for DAC8560

Page 1: ...kscreen 7 8 INL and DNL Characteristic Plot 8 9 DAC8560EVM Default Jumper Configuration 9 10 DAC8560EVM Schematic 14 11 MMB0 with DAC8560EVM Installed 16 12 Loading a DAC8560EVM Configuration 17 13 DA...

Page 2: ...reference of the DAC8560 These are available through R16 C6 and a small 4x4 through hole grid 1 2 Power Requirements The following sections describe the power requirements of this EVM 1 2 1 Supply Vol...

Page 3: ...gh J6 3 terminal The test point TP1 also is provided as well as J4 20 to allow the user to connect other external reference source if the onboard reference circuit is not desired The external voltage...

Page 4: ...s possible to the pins properly separate the analog and digital signals from each other In the layout process carefully consider the power and ground plane because of their importance A solid plane is...

Page 5: ...nd Performance Figure 2 Top Silkscreen Figure 3 Layer 1 Top Signal Plane 5 SLAU211A March 2007 Revised November 2009 DAC8560 Evaluation Module Submit Documentation Feedback Copyright 2007 2009 Texas I...

Page 6: ...ce www ti com Figure 4 Layer 2 Ground Plane Figure 5 Layer 3 Power Plane 6 DAC8560 Evaluation Module SLAU211A March 2007 Revised November 2009 Submit Documentation Feedback Copyright 2007 2009 Texas I...

Page 7: ...Performance Figure 6 Layer 4 Bottom Signal Plane Figure 7 Bottom Silkscreen 7 SLAU211A March 2007 Revised November 2009 DAC8560 Evaluation Module Submit Documentation Feedback Copyright 2007 2009 Texa...

Page 8: ...re 8 shows the characteristic INL and DNL plots Figure 8 INL and DNL Characteristic Plot 3 EVM Operation This section covers in detail the operation of the EVM to provide guidance to the user in evalu...

Page 9: ...5 1 2 Negative supply rail of U2 operational amplifier is supplied with VSS W6 1 2 CS signal from J2 is used for frame synchronization SYNC signal For DAC8560EVM the VFB is not routed out unless there...

Page 10: ...if R1 jumper resistor is disconnected In order to allow exclusive control of each EVM that is stacked together the DAC8560 must have a separate SYNC signal This is accomplished in hardware by routing...

Page 11: ...Jumper Setting Reference Function Unipolar Bipolar Inverting input of the output operational amplifier U2 is connected to VREF for use as its offset Close Close voltage for bipolar operation W15 jump...

Page 12: ...s selected for AVDD Routes VOUT to J4 2 W2 Routes VOUT to J4 6 Disconnects VREF to the inverting input of the output operational amplifier U2 W3 Connects VREF to the inverting input of the output oper...

Page 13: ...will be routed to J4 14 This jumper position selects the adjustable 5 V reference to route to the VREF input of the DAC8560 This is the default jumper position for DAC8560EVM because the 2 5 V intern...

Page 14: ...VA GPIO0 GPIO1 SCL SDA GPIO2 GPIO3 GPIO4 GPIO5 R5 DNP R7 DNP R25 DNP R2 0 FSX SCLK SDI W1 3 3VA AVDD W6 R13 100 W15 W3 VDD 1 VREF 2 VFB 3 VOUT 4 SYNC 5 SCLK 6 DIN 7 GND 8 U1 DAC8560 R1 0 CS CS OUT_A1...

Page 15: ...ngle and square wave signals to be generated by the DAC8560 Straight dc outputs can also be obtained The DAC8560EVM PDK uses the DSP based MMB0 to control the DAC8560EVM using the DXP software For com...

Page 16: ...eft corner of the MMB0 board CAUTION When using external power supplies applied to J14 on the MMB0 please ensure all shorting blocks from J13 are completely removed Permanent damage to the MMB0 may oc...

Page 17: ...installation directory Before you can generate signals with DXP a DAC EVM configuration file must be loaded To load a configuration file select the desired DAC from the configuration list under the DA...

Page 18: ...DXP User s Guide The frequency and amplitude of the output waveform are controlled by sliders on the DXP software interface The DAC update rate can also be modified as shown in Figure 13 Figure 13 DAC...

Page 19: ...esistor 5 Tol Panasonic ERJ 8GEYJ101V 5 1 20k R10 1 4W 1206 Thick Film Chip Resistor 5 Tol Panasonic ERJ 8GEYJ203V 6 1 100k Trim Pot R11 Potentiometer 4mm SMD Cermet Bourns 3214W 1 104E 7 3 0 1 F C1 C...

Page 20: ...0 025 Square Post Header Samtec MTSW 103 08 T S 295 26 0 N A N A Schematic Diagram Texas 6484156 Instruments 27 1 N A N A Printed Wiring Board Texas 6484155 Instruments 28 0 N A N A Printed Circuit As...

Page 21: ...oduct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engine...

Page 22: ...ce TI is not responsible or liable for any such statements TI products are not authorized for use in safety critical applications such as life support where a failure of the TI product would reasonabl...

Page 23: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments DAC8560EVM DAC8560EVM PDK...

Reviews: