Analog Devices EVAL-AD5341DBZ Manuel utilisateur

EVAL-AD5341DBZ User Guide

UG-982

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 AD5341 12-Bit, Single-Channel, Voltage Output, Digital-to-Analog

Converter (DAC)

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 | Page 1 of 12

FEATURES

Full featured evaluation board (EVAL-AD5341DBZ)

in conjunction with the nanoDAC motherboard

(EVAL-MBnanoDAC-SDZ)

On-board references

Various link options

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

demonstration platform

PACKAGE CONTENTS

EVAL-AD5341DBZ evaluation board

EVAL-MBnanoDAC-SDZ motherboard

SOFTWARE REQUIRED

EVAL-AD5341DBZ 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 evaluation board for

the AD5341 single-channel, voltage output DAC.

The EVAL-AD5341DBZ evaluation board helps users quickly

prototype new AD5341 circuits and reduce design times. The

AD5341 operates from a single 2.5 V to 5.5 V supply.

For full data, see the AD5341 data sheet, which must be used in

conjunction with this user guide when using the evaluation board.

The EVAL-AD5341DBZ interfaces to the USB port of a PC via

the SDP-B controller board. Software can be downloaded via the

EVAL-AD5341DBZ product page that allows users to program

the AD5341.

The EVAL-AD5341DBZ evaluation board requires the EVAL-

SDP-CB1Z board (SDP-B controller board).

EVAL-AD5341DBZ, EVAL-MBnanoDAC-SDZ, AND EVAL-SDP-CB1Z BOARDS

14517-001

Figure 1.

UG-982 EVAL-AD5341DBZ User Guide

Rev. 0 | Page 2 of 12

TABLE OF CONTENTS

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

Package Contents.............................................................................. 1

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

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

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

E VA L-AD5341DBZ, EVAL-MBnanoDAC-SDZ, and EVAL-

SDP-CB1Z Boards ............................................................................ 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 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-AD5341DBZ Daughter Board .........................................9

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

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

REVISION HISTORY

2/2017—Revision 0: Initial Version

EVAL-AD5341DBZ User Guide UG-982

Rev. 0 | Page 3 of 12

EVALUATION BOARD HARDWARE

POWER SUPPLIES

The EVAL-AD5341DBZ evaluation board can be powered

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

connectors, as described in Table 1.

The nanoDAC® EVAL-MBnanoDAC-SDZ motherboard supports

single and dual power supplies.

Both AGND and DGND inputs are provided on the EVAL-

AD5341DBZ evaluation board. The AGND and DGND planes

are connected at one location on the EVAL-MBnanoDAC-SDZ. It

is recommended that AGND and DGND not be connected

elsewhere in the system to avoid ground loop problems.

All supplies are decoupled to ground with 10 μF tantalum and

0.1 μF ceramic capacitors.

Table 1. Power Supply Connectors

Connector No. 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

Various link options are incorporated in the EVAL-MBnanoDAC-

SDZ and must be set for the required operating conditions before

using the EVAL-AD5341DBZ. Table 2 describes the positions of

the links to control the EVAL-AD5341DBZ via the SDP-B board

using a PC and external power supplies. The functions of these link

options are described in detail in Table 4. The positions listed in

Table 2 to Table 4 match the e valuation board imprints (se e

Figure 11).

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

Link Number Position

REF1 EXT

REF2 EXT

REF3 EXT

REF4 EXT

LK5 C

LK6 +3V3

LK7 B

DAUGHTER BOARD LINK OPTIONS

The EVAL-AD5341DBZ daughter board has two link options. The

links control the settings for the reference BUF and CLR pins.

Table 3 shows how the links are configured.

Table 3. Link Options for Daughter Board

Link Number Pin Position

LK1 BUF A (unbuffered, default)

B (buffered)

LK2 CLR A (no operation, default)

B (zero scale)

Table 4. Link Functions

Link Number Function

REF1, REF2 This link selects the reference source.

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

Position VDD selects VDD 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.

REF3, REF4 This link selects the reference source.

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

Position VDD selects VDD 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 board.

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

Position C selects the external supply voltage, VDD.

LK6 This link selects the VLOGIC voltage source.

Position +3V3 selects the digital voltage source from the SDP-B board (3.3 V).

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-982 EVAL-AD5341DBZ User Guide

Rev. 0 | Page 4 of 12

EVALUATION BOARD SOFTWARE QUICK START PROCEDURES

INSTALLING THE SOFTWARE

The E VA L -AD5341DBZ 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 board to the

USB port of the PC to ensure that the SDP-B board is recognized

when it connects to the PC.

To install the E VA L -AD5341DBZ software, take the following

steps:

1. Start the Windows operating system.

2. Download the installation software from the EVA L -

AD5341DBZ evaluation board page.

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

open automatically.

4. Power up the E VA L -AD5341DBZ as described in the

Power Supplies section after installation is completed.

5. Connect the EVA L-AD5341DBZ to the SDP-B and the

SDP-B to the PC using the USB cable included in the

evaluation kit.

6. Proceed through any dialog boxes that appear to

finalize the installation when the software detects the

E VA L-AD5341DBZ.

RUNNING THE SOFTWARE

To run the EVA L-AD5341DBZ software, take the following

steps:

1. Connect the E VA L-AD5341DBZ to the SDP-B and connect

the USB cable between the SDP-B and the PC.

2. Power up the E VA L -AD5341DBZ as described in the

Power Supplies section.

3. Click Start > All Programs > Analog Devices > AD5341.

If the SDP-B is not connected to the USB port when the software is

launched, a connectivity error displays (see Figure 2).

Connect the SDP-B to the USB port of the PC and wait a few

seconds. When the SDP-B and the E VA L-AD5341DBZ are

detected, the display updates (see Figure 3).

14517-002

Figure 2. Connectivity Error

14517-003

Figure 3. Hardware Select

Alternatively, the software can be used without an evaluation

board. The software runs in simulation mode displaying expected

outputs based on the input data. The main window of the AD5341

evaluation software then opens, as shown in Figure 4.

EVAL-AD5341DBZ User Guide UG-982

Rev. 0 | Page 5 of 12

14517-004

Figure 4. AD5341 Evaluation Board Software Main Window

SOFTWARE OPERATION

The software for the AD5341 allows users to program values to

the input and DAC registers of the DAC.

Write to Input Register

Click Wr ite t o Input Register to load the code of the input data

control to the input register of the DAC.

LDAC Control

Click Pulse LDAC to bring the LDAC pin low and then back to

high, which copies the data from the input registers to the DAC

registers, and the outputs update accordingly. Alternatively, set

the LDAC pin high or low by clicking the blue progressive

disclosure button in the INTERFACE LOGIC block. A window

then opens that allows the user to click the appropriate LDAC

setting, as shown in Figure 5.

14517-005

Figure 5. DAC Config Window

GAIN Control

Set the GAIN pin high or low by clicking the blue progressive

disclosure button in the INTERFACE LOGIC block. A window

then opens that allows the user to click the appropriate GAIN

setting, as shown in Figure 5. Click GAIN X1 to set a full-scale

output of 2.5 V or click GAIN X2 to set a full-scale output of 5 V.

Power-Down Control

Click the blue progressive disclosure button in the POWER-

DOWN LOGIC block to access a selection box that allows the

device to operate in normal mode or power-down mode. A

window then opens that allows the user to click the power-

down setting for the DAC, as shown in Figure 6. Click OK to

write the appropriate values to the AD5341 when the power-

down settings for the DAC are selected.

14517-006

Figure 6. Powerdown Config Window

CLR Control

Set the CLR pin high or low using LK2 as described in the

Daughter Board Link Options section and Table 3. Click the

appropriate CLR (LK2) setting on the GUI to match the

daughter board setting (see Figure 4).

UG-982 EVAL-AD5341DBZ User Guide

Rev. 0 | Page 6 of 12

EVALUATION BOARD SCHEMATICS AND ARTWORK

EVAL-MBnanoDAC-SDZ MOTHERBOARD

14517-007

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

1IN

2GND

3EN 4

OUT

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 100Ω

0.1µF +C9

10µF

R15

100Ω

R16

DNP

PD SCL

SDA

CS WR

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

PAR_WR

PAR_INT

Figure 7. EVAL-MBnanoDAC-SDZ Motherboard SDP-B Connector and Power Supply

14517-008

+2.5V +4.096V

C16

1µF

C15

1µF

OUTPUT

2VIN

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

2+VIN

5TRIM

VOUT

GND

ADR445ARMZ

2+VIN

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

Figure 8. EVAL-MBnanoDAC-SDZ Motherboard Reference Voltage Selector Circuit

EVAL-AD5341DBZ User Guide UG-982

Rev. 0 | Page 7 of 12

14517-009

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

Figure 9. EVAL-MBnanoDAC-SDZ Motherboard Connectors to Daughter Board and Serial Interface

14517-010

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

–

13 14

U10-D

AD8608ARUZ

2–

U7-A

AD8616ARZ

6–

U7-B

AD8616ARZ

V+

V–

U7-C AD8616ARZ

2–

3+6

V–

V+

U11

AD8655

2–

3+6

V–

V+

U12

AD8655

VOUT_0

VOUT_1

VOUT_2

VOUT_3

VOUT_4

VOUT_5

VOUT_6

VOUT_7

VDD

VSS

VDD

VSS

Figure 10. EVAL-MBnanoDAC-SDZ Motherboard Output Amplifier Circuit

UG-982 EVAL-AD5341DBZ User Guide

Rev. 0 | Page 8 of 12

14517-011

Figure 11. EVAL-MBnanoDAC-SDZ Motherboard Component Placement

14517-012

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

EVAL-AD5341DBZ User Guide UG-982

Rev. 0 | Page 9 of 12

14517-013

Figure 13. EVAL-MBnanoDAC-SDZ Motherboard Bottom Side Routing

EVAL-AD5341DBZ DAUGHTER BOARD

14517-014

1HBEN

2BUF

VREF

VOUT

5GND

6CS

7WR

8GAIN

9CLR

10 LDAC

11 PD

VDD

13 DB0

14 DB1

15 DB2

16 DB3

17 DB4

18 DB5

19 DB6

20 DB7

AD5341BRUZ

R1 DNP

VOUT

DNP

B A

LK1

LK2

0.1µF

+C3

10µF

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

1 2

5 6

910

11 12

13 14

15 16

VDD

AGND

VOUT_0

VLOGIC

VDD

VREF1

VREF2

VREF3

VREF4

VLOGIC

SDASCL

SYNC

SCLK

SDO

SDIN LDAC

CLR

GAIN

VOUT_0

VOUT_1

VOUT_2

VOUT_3

VOUT_4

VOUT_5

VOUT_6

VOUT_7

DB6

DB7

DB8

DB9

DB0

DB1

DB2

DB3

DGND

CS WR

DB11 DB5

DB10 DB4

AGND

VREF1

CLR

DB0

DB1

DB2

DB3

DB4

DB5

DB6

DB7

GAIN

LDAC

Figure 14. EVAL-AD5341DBZ Daughter Board Schematics

UG-982 EVAL-AD5341DBZ User Guide

Rev. 0 | Page 10 of 12

14517-015

Figure 15. EVAL-AD5341DBZ Daughter Board Component Placement

14517-016

Figure 16. EVAL-AD5341DBZ Daughter Board Top Side Routing

14517-017

Figure 17. EVAL-AD5341DBZ Daughter Board Bottom Side Routing

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