EVAL-AD5683R User Guide
UG-641
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
Evaluation Board for AD5683R, Single, 16-Bit, Serial Voltage-Output DAC
FEATURES
GENERAL DESCRIPTION
Full-featured evaluation board for the AD5683R
On-board reference
Various link options
PC control in conjunction with Analog Devices
System demonstration platform (SDP)
PC software for control of DACs
On-board ADC for voltage readback
The Analog Devices, Inc., AD5683R evaluation board (EVALAD5683RSDZ) is designed to help customers quickly prototype
new AD5683R circuits and reduce design time. The AD5683R
operates from a single 2.7 V to 5.5 V supply. The part
incorporates an internal 2.5 V on-board reference to give an
output voltage span of 2.5 V or 5 V.
The evaluation board interfaces to the USB port via the SDP
board. Software is available with the evaluation board, which
allows the user to easily program the AD5683R.
PACKAGE CONTENTS
AD5683R evaluation board
AD5683R device
CD that includes
Self-installing software that allows users to control the
board and exercise all functions of the device
Electronic version of the AD5683R data sheet
Electronic version of EVAL-AD5683R user guide
This evaluation board requires the EVAL-SDP-CB1Z board. This
is available on the Analog Devices website.
Full data on the AD5683R may be found in the AD5683R data
sheet available from Analog Devices and should be consulted
in conjunction with this user guide when using the evaluation
board.
ADDITIONAL EQUIPMENT NEEDED
PC control via a separately purchased system demonstration
platform (SDP-B or SDP-S)
11957-001
EVALUATION BOARD PHOTOGRAPH
Figure 1. Universal Evaluation Board
Rev. 0 | Page 1 of 12
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EVAL-AD5683R User Guide
TABLE OF CONTENTS
Features .............................................................................................. 1 Power Supplies ...............................................................................4 Package Contents .............................................................................. 1 Link Options ..................................................................................4 Additional Equipment Needed ....................................................... 1 How to Use the Software ..................................................................5 General Description ......................................................................... 1 Running the Software ...................................................................5 Evaluation Board Photograph......................................................... 1 Software Operation .......................................................................6 Revision History ............................................................................... 2 Evaluation Board Schematics and Artwork ...................................7 Getting Started .................................................................................. 3 Ordering Information .................................................................... 10 Installing the Software ................................................................. 3 Components List ........................................................................ 10 Evaluation Board Hardware ............................................................ 4 REVISION HISTORY
1/14—Revision 0: Initial Version
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EVAL-AD5683R User Guide
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GETTING STARTED
INSTALLING THE SOFTWARE
3.
The EVAL-AD5683RSDZ evaluation kit includes self-installing
software on CD. The software is compatible with Windows®
XP (32-bit), Windows Vista (64-bit/32-bit), and Windows
7(64-bit/32-bit).
4.
Install the software before connecting the SDP board to the USB
port of the PC. This ensures that the SDP board is recognized
when it connects to the PC.
1.
2.
5.
Start the Windows® operating system and insert the CD.
The installation software will open automatically. If it does
not, run the setup.exe file from the CD.
Rev. 0 | Page 3 of 12
After installation is completed, power-up the evaluation
board as described in the Power Supplies section.
Plug the EVAL-AD5683RSDZ into the SDP board and
the SDP board into the PC using the USB cable included
in the box.
When the software detects the evaluation board, proceed
through any dialog boxes that appear to finalize the
installation.
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EVAL-AD5683R User Guide
EVALUATION BOARD HARDWARE
POWER SUPPLIES
LINK OPTIONS
The AD5683R evaluation board can be powered either from the
SDP or externally by the VPOS_EXT and AGND connector.
A number of link and switch options are incorporated in the
evaluation board and should be set for the required operating
setup before using the board. The functions of these link options
are described in detail in Table 3. Table 2 describes the positions
of the different links to control the evaluation board by PC, via
the USB port and SDP board in single-supply mode.
Both AGND and DGND inputs are provided on the board. The
AGND and DGND planes are connected at one location close
to the AD5683R. It is recommended not to connect AGND and
DGND 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.
J2-1
J2-2
Voltage
Analog positive power supply, V_EXT
AGND
Table 2. Link Options Setup for SDP Control (Default)
Link No.
A11
LINK
A1
Options
A
Disconnected
A
Table 3. Link Functions
Link No.
A1
LINK
A11
Option
This link selects the DAC digital voltage source:
Position A selects an external reference source via the SMB input EXT_REF.
Position B selects the REF192 external reference.
Position C selects the ADR431 external reference.
Connect only if the board of the part is controlled through the PMOD connector and the SDP is not connected.
This link selects the DAC analog voltage source:
Position A VDD is powered @ 3.3 V.
Position B VDD is powered from unregulated USB supply.
Position C VDD is powered from an external supply voltage (V_EXT).
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EVAL-AD5683R User Guide
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HOW TO USE THE SOFTWARE
RUNNING THE SOFTWARE
4.
1.
Click Start > All Programs > Analog Devices > AD563R >
AD5683R Evaluation Software. (To uninstall the
program, click Start > Control Panel > Add or Remove
Programs > AD5683R Evaluation Software.)
2.
If the SDP board is not connected to the USB port when
the software is launched, a connectivity error is displayed
(see Figure 2). Simply connect the evaluation board to the
USB port of the PC, wait a few seconds, click Rescan, and
follow the instructions.
11957-004
To run the program, do the following:
If the SDP board is connected, the system development
platform will connect for a brief period.
Figure 4. System Develop Platform Wait Window
5.
The main window of the AD5683R evaluation software
then opens, as shown in Figure 5.
11957-002
Note that simulation mode is available and the software can be
tested without the use of the evaluation boards.
Figure 2. Pop-Up Window Error
If the SDP board is not connected to the evaluation boards,
a message box appears as shown in Figure 3. Check the
connection between the SDP and EVAL-AD5683RSDZ
boards and run the program again. The software will
now run in simulation mode enabling us to see how
the AD5683R interface functions without the use of an
evaluation board.
11957-003
3.
Figure 3. Error Message
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EVAL-AD5683R User Guide
SOFTWARE OPERATION
To select the AD5683R from the Analog Devices menu, click
Start > All Programs > Analog Devices > AD5683R >
AD5683R SDP Evaluation Software.
The AD5683R control register options are available by selecting
the drop-down menus and clicking Write to Control Register.
Consult the AD5683R data sheet for details. Set LDAC and
RESET to high or low by clicking the corresponding check
boxes. This command is executed immediately.
11957-005
The AD5683R main window opens, as shown in Figure 5. The
data programmed into the input register is displayed. You can
update the command bits and the data bits by clicking the
appropriate button under each area.
To select a command with which to program the part, select the
appropriate button. For example, to program DAC output with
full scale, write the full-scale value into the INPUT VALUE
(HEX) (0xFFFF) text box and click Write to Input and DAC
register.
Figure 5. AD5683R Evaluation Board Main Window
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Rev. 0 | Page 7 of 12
VPOS
C4
1µF
J2-2
J2-1
2
3
Figure 6. Schematic of AD5683R Evaluation Circuitry
7
2
3
2
4
4
GND
COMP
TRIM
6
5
6
+
+5V
REF192
O/P
VOUT
U8
ADR431BRZ
+VIN
U3
GND
SLEEP
REF192
EXT_REF
VIN
4
5
C8
0.1µF
NC
OUT
REFERENCE
GND
EN
IN
C5
1µF
1
5V
C7
10µF
±20%
ADR431
C
B
A1
A
EXT
LABELS:
V_EXT
C
B
A11
A
3V3
LABELS:
VREF
VPOS
LINK
V_IO
RESET
LDAC
SDIN/SDA
SCLK/A0
SYNC/SCL
V_IO
PLEASE LABEL TP AS PER
THE NET IT IS CONNECTED TO
TP3 TP1 TP2 TP9 TP6
CONNECT ONLY IF
THE SDP IS NOT CONNECTED
VPOS
DIGITAL SUPPLY
3
4
8
6
7
2
VLOGIC
RESET
LDAC
SDIN
SCLK
SYNC
DGND
J5-12
J5-8
J5-10
J5-7
J5-9
J5-11
J5-6
J5-5
J5-2
J5-4
J5-1
J5-3
+5V
SCLK
SCL
SDA
SDIN
9
VREF
GND
5
U1
AD5683R
1
VDD
VPOS VREF
nanoDAC+
VOUT
C9
10µF
±20%
10
+
VPOS
C10
0.1µF
TP4
C2
10µF
±20%
PLEASE LABEL TP AS PER THE NET IT IS CONNECTED TO
V_IO
RESET
SYNC
LDAC
VPOS
PMOD CONNECTOR
C6
DNP
ANALOG SUPPLY
R12
U5
ADP121
DNP
+5V
+
VREF
VOUT
C1
0.1µF
EVAL-AD5683R User Guide
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EVALUATION BOARD SCHEMATICS AND ARTWORK
11957-007
+
Rev. 0 | Page 8 of 12
DGND
10µF
C22
BEAD
L2
1.6Ω
R21
C34
4.7µF
+
C21
0.1µF
+5V
LDAC
Figure 7. Schematic of SDP Connector
J1
BMODE1
RESET_IN
UART_TX
UART_RX
GND
GND
NC
NC
SDP
EEPROM_A0
NC
STANDARD
NC
NC
CONNECTOR
NC
NC
NC
NC
GND
GND
NC
NC
NC
NC
TMR_C*
TMR_D
TIMERS
TMR_B
TMR_A
GPIO6
GPIO7
GND
GND
GENERAL
GPIO5
GPIO4
INPUT/OUTPUT
GPIO3
GPIO2
GPIO0
GPIO1
SCL_0
SCL_1
I2C
SDA_0
SDA_1
GND
GND
SPI_CLK
SPI_SEL1/SPI_SS
SPI_MISO
SPI_SEL_C
SPI
SPI_MOSI
SPI_SEL_B
SPI_SEL_A
GND
GND
SPORT_INT
SPORT_TSCLK
SPORT_DT3*
SPORT_DT0
SPORT_DT2*
SPORT
SPORT_TFS
SPORT_DT1
SPORT_RFS
SPORT_DR1
SPORT_DR0
SPORT_DR2*
SPORT_RSCLK
SPORT_DR3*
GND
GND
PAR_CLK
PAR_FS1
PAR_FS2
PAR_FS3
PAR_A0
PAR_A1
PAR_A2
PAR_A3
GND
GND
PAR_INT
PAR_CS
PAR_WR
PAR_RD
PAR_D0
PAR_D1
PARALLEL
PAR_D2
PAR_D3
PORT
PAR_D4
PAR_D5
GND
GND
PAR_D6
PAR_D7
PAR_D8
PAR_D9
PAR_D10
PAR_D11
PAR_D12
PAR_D13
GND
PAR_D14
PAR_D15
GND
*PAR_D16
PAR_D17*
*PAR_D18
PAR_D19*
*PAR_D20
PAR_D21**
*PAR_D22
PAR_D23
GND
GND
VIO(+3.3V)
USB_VBUS
GND
GND
GND
GND
NC
NC
*NC ON BLACKFIN SDP
NC
VIN
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
VIN: USE THIS PIN TO POWER THE SDP REQUIRES 5V 200mA
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
SCLK
SDO
SDIN
SYNC
RESET
R1
100kΩ
R6
0Ω
TP5
8
VCC
7
WP
6
SCL
5
SDA
24LC32
1
A0
2
A1
3
A2
4
VSS
U6
V_IO
SCL
SDA
BOARD ID EEPROM (24LC32)
MUST BE ON I2C BUS 0
V_IO
SDA
0Ω
0Ω
0Ω
R13
R7
R9
0Ω
R11
SDIN
0Ω
R10
V_IO SCLK
0Ω
0Ω
R5
R4
SCL
SYNC
AD5683R -> AD5693R
SDIN/SDA
SCLK/A0
SYNC/SCL
MAIN I2C BUS (CONNECTED TO BLACKFIN TWI; PULL UP RESISTORS NOT REQUIRED)
R2
100kΩ
R3
DNP
VIO: USE TO SET IO VOLTAGE MAX DRAW 20mA
V_IO
R18
100kΩ
R8
100kΩ
V_IO
V_IO
BMODE1: PULL UP WITH A 10kΩ RESISTOR TO SET SDP TO BOOT FROM A SPI FLASH ON THE DAUGHTER BOARD.
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EVAL-AD5683R User Guide
11957-006
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11957-008
EVAL-AD5683R User Guide
11957-009
Figure 8. Component Placement Drawing
11957-010
Figure 9. Component Side PCB Drawing
Figure 10. Solder Side PCB Drawing
Rev. 0 | Page 9 of 12
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EVAL-AD5683R User Guide
ORDERING INFORMATION
COMPONENTS LIST
Table 4.
Qty
1
1
1
1
1
1
2
2
1
1
3
1
2
3
1
1
7
4
1
4
Reference
U1
U3
U5
U6
U8
LINK
A1, A11
VOUT, EXT_REF
J1
J2
C1, C8, C10
C21
C4, C5
C2, C7, C9
C22
L2
TP1, TP2, TP3, TP4, TP5, TP6, TP9
R1, R2, R8, R18
R21
R4, R6, R7, R10
Description
AD5683R
2.5 V reference
3.3 V regulator
32K I2C serial EEPROM
Ultralow noise XFET voltage references
2-pin link
3-pin link
SMB jack 50 Ω
120-way female connector
2-pin terminal block
0.1 µF, 16 V X7R ceramic capacitor
0.1 µF, 50 V X7R ceramic capacitor
1 µF, 16 V X7R ceramic capacitor
10 µF, 10 V, X5R, 0603
10uF, 6.3 V, tantalum
Inductor
Testpoint
100 kΩ SMD resistor
1.6 Ω SMD resistor
0 Ω resistor
Rev. 0 | Page 10 of 12
Supplier/Part Number
AD5683R
REF192
ADP121
FEC 1331330
ADR431BRZ
FEC 1022249
FEC 148535
FEC 1206013
FEC 1324660
FEC 151789
FEC 1216538
FEC 1759122
FEC 1658870
FEC 1853538
FEC 1190107
FEC 9526862
FEC 8731128
FEC 9330402
FEC 1627674
FEC 9331662
EVAL-AD5683R User Guide
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NOTES
Rev. 0 | Page 11 of 12
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EVAL-AD5683R User Guide
NOTES
ESD Caution
ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection
circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.
Legal Terms and Conditions
By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions
set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you
have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc.
(“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal,
temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided
for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional
limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term
“Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including
ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may
not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to
promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any
occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board.
Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice
to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO
WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED
TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL
PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF
THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE
AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable
United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of
Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby
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©2014 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
UG11957-0-1/14(0)
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