Analog Devices EVAL-AD5344DBZ Manuale utente

EVAL-AD5344DBZ User Guide

UG-985

One Technology Way •P. O. Box 9106 •Norwood, MA 02062-9106, U.S.A. •Tel: 781.329.4700 •Fax: 781.461.3113 •www.analog.com

Evaluating the AD5344 12-Bit, Quad-Channel Voltage Output Digital-to-Analog

Converter (DAC)

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.Rev. A | Page 1 of 12

FEATURES

Full featured evaluation board (EVAL-AD5344DBZ)

in conjunction with nanoDAC motherboard

(EVAL-MBnanoDAC-SDZ)

On-board references

Various link options

PC control in conjunction with Analog Devices, Inc., system

demonstration platform (SDP)

EVALUATION KIT CONTENTS

EVAL-AD5344DBZ evaluation board

EVAL-MBnanoDAC-SDZ motherboard

USB cable

SOFTWARE REQUIRED

EVAL-AD5344DBZ evaluation software

HARDWARE REQUIRED

EVAL-SDP-CB1Z controller board (SDP-B controller board),

must be purchased separately

GENERAL DESCRIPTION

This user guide details the operation of the E VA L-AD5344DBZ

for the AD5344 quad-channel, voltage output DAC. The

AD5344 operates from a single 2.5 V to 5.5 V supply.

The E VA L -AD5344DBZ is designed to quickly prototype AD5344

circuits and reduce design time. The E VA L -AD5344DBZ

interfaces with the USB port of a PC via the SDP-B controller

board. Software can be downloaded via the EVA L-AD5344DBZ

product page that allows users to program the AD5344.

The E VA L-AD5344DBZ evaluation board requires the SDP-B

controller board, which is available for order on the Analog

Devices website.

Full specifications for the AD5344 are listed in the AD5344 data

sheet available from Analog Devices and should be consulted in

conjunction with this user guide when using the evaluation board.

PHOTOGRAPH OF THE EVAL-AD5344DBZ, EVAL-MBnanoDAC-SDZ, AND EVAL-SDP-CB1Z

14520-001

Figure 1.

UG-985 EVAL-AD5344DBZ User Guide

Rev. A | Page 2 of 12

TABLE OF CONTENTS

Features .............................................................................................. 1

Evaluation Kit Contents .................................................................. 1

Software Required ............................................................................ 1

Hardware Required .......................................................................... 1

General Description ......................................................................... 1

Photograph of the EVAL-AD5344DBZ, EVAL-MBnanoDAC-

SDZ, and E VA L -SDP-CB1Z ............................................................. 1

Revision History ............................................................................... 2

Evaluation Board Hardware ............................................................ 3

Power Supplies .............................................................................. 3

Link Options ................................................................................. 3

Daughter Board Link Options.....................................................3

Evaluation Board Software Quick Start Procedures.....................4

Installing the EVAL-AD5344DBZ Evaluation Software.............4

Running the Software ...................................................................4

Software Operation .......................................................................5

Evaluation Board Schematics and Artwork...................................6

E VA L-MBnanoDAC-SDZ Motherboard ...................................6

E VA L-AD5344DBZ Daughter Board .........................................9

Ordering Information.................................................................... 11

Bill of Materials........................................................................... 11

REVISION HISTORY

10/2017—Rev. 0 to Rev. A

Changes to Table 6.......................................................................... 12

3/2017—Revision 0: Initial Version

EVAL-AD5344DBZ User Guide UG-985

Rev. A | Page 3 of 12

EVALUATION BOARD HARDWARE

POWER SUPPLIES

The nanoDAC® E VA L -MBnanoDAC-SDZ motherboard

supports single and dual power supplies.

The E VA L-AD5344DBZ evaluation board can be powered from

either the SDP-B port or externally by the J5 and J6 connectors,

described in Table 1.

Both AGND and DGND inputs are provided on the evaluation

board. The AGND and DGND planes are connected at one

location on the E VA L -MBnanoDAC-SDZ. It is recommended

that AGND and DGND do not connect elsewhere in the system

to avoid ground loop problems.

All supplies are decoupled to ground with 10 µF tantalum

capacitors and 0.1 µF ceramic capacitors.

Table 1. Power Supply Connectors

Connector Label Voltage

J5, Pin 1 (J5-1) VDD Analog positive power supply, VDD;

5.5 V single and dual supply

J5, Pin 2 (J5-2)

AGND

Analog ground

J5, Pin 3 (J5-3) VSS Analog negative power supply, VSS;

−5.5 V dual supply

J6, Pin 1 (J6-1) VLOGIC Digital supply from 1.8 V to VDD;

J6, Pin 2 (J6-2) DGND Digital ground

LINK OPTIONS

A number of link options are incorporated in the EVA L -

MBnanoDAC-SDZ and must be set for the required operating

conditions before using the evaluation board. Table 2 describes

the positions of the links that control the evaluation board via

the SDP-B controller board using a PC and external power

supplies. The positions listed in Table 2 through Table 4 match

the evaluation board imprints, see Figure 10.

Table 2. Link Options Setup for SDP Control (Default)

Link Number Position

REF1 2.5 V

REF2 2.5 V

REF3 2.5 V

REF4

2.5 V

LK5

LK6 +3V3

LK7 B

DAUGHTER BOARD LINK OPTIONS

The E VA L -AD5344DBZ daughter board has two link options.

The links control the settings of the output voltage channel. The

functions of these link options are described in detail in Table 3.

Table 4 shows how the links are configured.

Table 3. Channel Settings

Channel LK1 LK2

A A A

B A B

C B A

D B B

Table 4. Link Functions

Link Number Position

REF1 to REF4 These links select the reference source.

Position EXT selects an off board voltage reference via the appropriate EXT_REF connector.

Position VDD selects V

as the reference source.

Position 4.096V selects the on-board 4.096 V reference as the reference source.

Position 2.5V selects the on-board 2.5 V reference as the reference source.

Position 5V selects the on-board 5 V reference as the reference source.

LK5 This link selects the positive DAC analog voltage source.

Position A selects the internal voltage source from the SDP-B controller board.

Position B selects the internal voltage source 3.3 V from the ADP121 on the motherboard.

Position C selects an external supply voltage, VDD.

LK6 This link selects the VLOGIC voltage source.

Position +3V3 selects the digital voltage source from the SDP-B controller board (+3V3).

Position VLOGIC selects an external digital supply voltage, VLOGIC.

LK7 This link selects the negative DAC analog voltage source.

Position A selects VSS.

Position B selects AGND.

UG-985 EVAL-AD5344DBZ User Guide

Rev. A | Page 4 of 12

EVALUATION BOARD SOFTWARE QUICK START PROCEDURES

INSTALLING THE EVAL-AD5344DBZ EVALUATION

SOFTWARE

The E VA L -AD5344DBZ evaluation software is compatible with

Windows® Vista (64-bit/32-bit) and Windows 7 (64-bit/32-bit).

Install the software before connecting the SDP-B controller

board to the USB port of the PC to ensure the PC recognizes

the SDP-B controller board when it connects to the PC.

To install the EVA L -AD5344DBZ evaluation software, take the

following steps:

1. Start the Windows operating system.

2. Download the installation software from the E VA L-

AD5344DBZ evaluation board page.

3. Run the setup.exe file from the installer file if it does not

open automatically.

4. After the installation is complete, power up the evaluation

board as described in the Power Supplies section.

5. Connect the E VA L -AD5344DBZ to the SDP-B controller

board and the SDP-B controller board to the PC using the

USB cable included in the evaluation kit.

6. When the software detects the EVA L-AD5344DBZ,

proceed through any dialog boxes that appear to finalize

the installation.

RUNNING THE SOFTWARE

To run the E VA L -AD5344DBZ evaluation software, proceed

with the following steps:

1. Connect the E VA L -AD5344DBZ to the SDP-B controller

board and connect the USB cable from the SDP-B

controller board to the PC.

2. Power up the evaluation board as described in the Power

Supplies section.

3. Click Start > All Programs > Analog Devices > AD5344

Evaluation Software to locate the evaluation board.

If the SDP-B controller board does not connect to the USB port

when the software launches, a connectivity error displays (see

Figure 2).

Connect the SDP-B controller board to the USB port of the PC

and wait a few seconds. Once the SDP-B controller board and

the E VA L-AD5344DBZ daughter board are detected, the

display updates (see Figure 3).

14520-002

Figure 2. Connectivity Error

14520-003

Figure 3. Hardware Select

Alternatively, the E VA L -AD5344DBZ evaluation software can be

used without an evaluation board. The E VA L -AD5344DBZ

evaluation software runs in simulation mode displaying

expected outputs based on the input data. The main window of

the E VA L -AD5344DBZ evaluation software then opens, shown

in Figure 4.

EVAL-AD5344DBZ User Guide UG-985

Rev. A | Page 5 of 12

14520-004

Figure 4. AD5344 Evaluation Board Software Main Window

SOFTWARE OPERATION

The E VA L-AD5344DBZ evaluation software allows the user to

program values to the input and DAC registers of each DAC

individually (see Figure 4). Ensure the LK1 position and LK2

position on the daughter board match the DAC selected on the

DAC Selection pane on the GUI.

Write to DAC Register

Select the Write to DAC Register button to load the code of the

input data control to the DAC register of the DAC. Ensure LK1

and LK2 are set up correctly.

LDAC Control

Select the Pulse LDAC button to bring the LDAC pin low and

then high, copying the data from the input registers to the DAC

registers, and updating the outputs accordingly.

Alternatively, set the LDAC pin high or low by clicking the blue

progressive disclosure button on the INTERFACE LOGIC

block. A window opens that allows the user to click the

appropriate LDAC setting, shown in Figure 4.

14520-005

Figure 5. LDAC Control

Power-Down Control

All of the DACs can be powered down simultaneously. Click on the

blue progressive disclosure buttons to access the POWER-DOWN

LOGIC block. When the power-down setting for the DAC is

selected, click the OK button to write the appropriate values to the

AD5344.

UG-985 EVAL-AD5344DBZ User Guide

Rev. A | Page 6 of 12

EVALUATION BOARD SCHEMATICS AND ARTWORK

EVAL-MBnanoDAC-SDZ MOTHERBOARD

EXT_VDD

VLOGIC

GND

EXT_VSS

CONNECTOR

STANDARD

SDP

PARALLEL

PORT

SPORT

SPI

I2C

GENERAL

INPUT/OUTPUT

TIMERS

*NC ON BLACKFIN SDP 120

119

118

GND

117

GND

116

VIO(+3.3V)

115

GND

114

*PAR_D22

113

*PAR_D20

112

*PAR_D18

111

*PAR_D16

110

PAR_D15

109

GND

108

PAR_D12

107

PAR_D10

106

PAR_D8

105

PAR_D6

104

GND

103

PAR_D4

102

PAR_D2

101

PAR_D0

100

GND

PAR_A2

PAR_A0

PAR_FS2

PAR_CLK

GND

SPORT_RSCLK

SPORT_DR0

SPORT_RFS

SPORT_TFS

SPORT_DT0

SPORT_TSCLK

GND

SPI_SEL_A

SPI_MOSI

SPI_MISO

SPI_CLK

GND

SDA_0

SCL_0

GPIO1

GPIO3

GPIO5

GND

GPIO7

TMR_B

TMR_D

CLK_OUT

GND

WAKE

SLEEP

GND

UART_TX

BMODE1

60 RESET_IN

59 UART_RX

58 GND

57 RESET_OUT

56 EEPROM_A0

55 NC

54 NC

53 NC

52 GND

51 NC

50 NC

49 TMR_C*

48 TMR_A

47 GPIO6

46 GND

45 GPIO4

44 GPIO2

43 GPIO0

42 SCL_1

41 SDA_1

40 GND

39 SPI_SEL1/SPI_SS

38 SPI_SEL_C

37 SPI_SEL_B

36 GND

35 SPORT_INT

34 SPI_D3*

33 SPI_D2*

32 SPORT_DT1

31 SPORT_DR1

30 SPORT1_TDV*

29 SPORT0_TDV*

28 GND

27 PAR_FS1

26 PAR_FS3

25 PAR_A1

24 PAR_A3

23 GND

22 PAR_CS

21 PAR_RD

20 PAR_D1

19 PAR_D3

18 PAR_D5

17 GND

16 PAR_D7

15 PAR_D9

14 PAR_D11

13 PAR_D13

12 PAR_D14

11 GND

10 PAR_D17*

9PAR_D19*

8PAR_D21*

7PAR_D23*

6GND

5USB_VBUS

4GND

3GND

2NC

1VIN

J10

1A0

2A1

3A2

4VSS

VCC 7

WP 6

SCL 5

SDA

24LC32

100kΩ

DNP

100kΩ

DGND AGND

BEAD

1.6Ω

C11

4.7µF

C10

0.1µF

+C7

10µF

1VIN

2GND

3EN 4

VOUT

ADP121-AUJZ33

1µF

LK5

J6-1

J6-2

0.1µF

+C6

10µF

LK6

J5-1

J5-2

J5-3

0.1µF

10µF

LK7

R7 100Ω

R5 100Ω

R6 100Ω

R8 100Ω

R9 100Ω

R10 100Ω

R11 100Ω

R12 100Ω

R13 100Ω

R14

14520-006

100Ω

0.1µF

10µF

R15

100Ω

R16

DNP

SCL

SDA

DB0

DB2

DB4

DB6

DB8

DB10

DB1

DB3

DB5

DB7

DB9

DB11

+3.3V

DGND

+5V

USB_VBUS

+3.3V

VDD

+3.3V

DGND

VLOGIC

DGND

+3.3V

DGNDDGND

VSS

+5V

CLR

LDAC

SCLK

SDO

SDIN

SYNC

EXT_VDD

+5V

DGND

DGND DGND

Figure 6. EVAL-MBnanoDAC-SDZ Motherboard, SDP-B Controller Board Connector, and Power Supply

+2.5V +4.096V

C16

1µF

C15

1µF

OUTPUT

2VS

3SLEEP

GND

REF198

C17

1µF

+5V

+2.5V +4.096V

EX_REF_1 EX_REF_2 EX_REF_3 EX_REF_4

VREF_1 VREF_2 VREF_3 VREF_4

2VIN

5TRIM

VOUT

GND

ADR445ARMZ

2VIN

GND

TRIM

7COMP

VOUT

ADR431BRZ

REF3

REF4

REF1

REF2

+5VREF+2_5VREF +4_096VREF

VDD VDD

+5VREF

+2_5VREF

+4_096VREF

VREF1

+5VREF

+2_5VREF

+4_096VREF

VREF2

+5VREF

+2_5VREF

+4_096VREF

VREF3

+5VREF

+2_5VREF

+4_096VREF

VREF4

VDD VDD VDD VDD

VDD

14520-007

Figure 7. EVAL-MBnanoDAC-SDZ Motherboard Reference Voltage Selector Circuit

EVAL-AD5344DBZ User Guide UG-985

Rev. A | Page 7 of 12

DAUGHTER BOARD CONNECTOR

SPI PMOD CONNNECTOR GPIO PMOD CONNNECTOR

I2C PMOD CONNNECTOR

1 2

3 4

5 6

7 8

910

11 12

13 14

15 16

SDIN SDO SCLK SYNC SCL LDAC CLR PD GAIN SDA

1 2

3 4

5 6

7 8

J8-1

J8-2

J8-3

J8-4

J8-5

J8-6

J7-1

J7-2

J7-3

J7-4

J7-5

J7-6

J3-1

J3-2

J3-3

J3-4

J3-5

J3-6

J4-1

J4-2

J4-3

J4-4

J4-5

J4-6

J4-7

J4-8

VDD

VREF1

VREF2

VREF3

VREF4

VLOGIC

SDASCL

SYNC

SCLK

SDO

SDIN LDAC

CLR

GAIN

DB6

DB7

DB8

DB9

DB0

DB1

DB2

DB3

VOUT_0

VOUT_1

VOUT_2

VOUT_3

VOUT_4

VOUT_5

VOUT_6

VOUT_7

SCL

SDA

DGND

VLOGIC

SCL

SDA

DGND

VLOGIC

SYNC

SDO

SDIN

SCLK

DGND

VLOGIC

GAIN

DGND

LDAC

CLR

VLOGIC

DGND

CS WR

DB11

DB5

DB10

DB4

AGND

14520-008

Figure 8. EVAL-MBnanoDAC-SDZ Motherboard Connectors to Daughter Board and Serial Interface

VOUT_0

VOUT_1

VOUT_2

VOUT_3

VOUT_4

VOUT_5

VOUT_6

VOUT_7

U10-A

AD8608ARUZ

–

U10-B

AD8608ARUZ

–

U10-C

AD8608ARUZ

–

U10-D

AD8608ARUZ

2–

U7-A

AD8616ARZ

6–

U7-B

AD8616ARZ

V+

V–

U7-C

AD8616ARZ

2–

V–

V+

U11

AD8655

2–

V–

V+

U12

AD8655

VOUT_0

VOUT_1

VOUT_2

VOUT_3

VOUT_4

VOUT_5

VOUT_6

VOUT_7

VDD

VSS

VDD

VSS

14520-009

Figure 9. EVAL-MBnanoDAC-SDZ Motherboard Output Amplifier Circuit

UG-985 EVAL-AD5344DBZ User Guide

Rev. A | Page 8 of 12

14520-010

Figure 10. EVAL-MBnanoDAC-SDZ Motherboard Component Placement

14520-011

Figure 11. EVAL-MBnanoDAC-SDZ Motherboard Top Side Routing

EVAL-AD5344DBZ User Guide UG-985

Rev. A | Page 9 of 12

14520-012

Figure 12. EVAL-MBnanoDAC-SDZ Motherboard Bottom Side Routing

EVAL-AD5344DBZ DAUGHTER BOARD

14520-013

Figure 13. EVAL-AD5344DBZ Daughter Board Schematics

14437-014

Figure 14. EVAL-AD5344DBZ Daughter Board Component Placement

UG-985 EVAL-AD5344DBZ User Guide

Rev. A | Page 10 of 12

14437-015

Figure 15. EVAL-AD5344DBZ Daughter Board Top Side Routing

14437-016

Figure 16. EVAL-AD5344DBZ Daughter Board Bottom Side Routing

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