Datasheet UG-160 Datasheet (ANALOG DEVICES)

Evaluation Board User Guide
UG-160
09145-001
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

FEATURES

Self-contained board for generating RF frequencies Contains ADF4108 8 GHz frequency synthesizer IC Accompanying software allows complete control of
synthesizer functions from a PC

EVALUATION KIT CONTENTS

EV-ADF4108EB1Z board
CD that includes:
Self-installing software that allows users to control the
board and exercise all functions of the device
Electronic version of the ADF4108 data sheet
Electronic version of the UG-160 user guide

ADDITIONAL EQUIPMENT

PC running Windows XP or more recent version Spectrum analyzer Oscilloscope (optional) Power supplies of 5.5 V and 15 V

DOCUMENTS NEEDED

ADF4108 data sheet

REQUIRED SOFTWARE

Analog Devices Int-N software (Version 7 or higher)
ADIsimPLL

GENERAL DESCRIPTION

This board is designed, to let the user evaluate the performance of the ADF4108 frequency synthesizer for phase-locked loops (PLLs). Figure 1 shows the board, which contains the ADF4108 synthesizer, an SMA connector for the reference input, power supplies, a USB interface, and RF outputs. There is also an active loop filter and a VCO on board. The board has the option to use an alternate loop filter and VCO by connecting to the SMA connectors, VTUNE, an d C POU T. The evaluation kit contains software that is compatible with Windows® XP and later versions to allow easy programming of the synthesizer.
The USB interface allows software programming of the ADF4108 device. A USB cable is included with the board to allow software programmability.
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS.

EVALUATION BOARD

Figure 1. EV-ADF4108EB1Z
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TABLE OF CONTENTS
Features .............................................................................................. 1
Evaluation Kit Contents ................................................................... 1
Additional Equipment ..................................................................... 1
Documents Needed .......................................................................... 1
Required Software ............................................................................ 1
General Description ......................................................................... 1
Evaluation Board .............................................................................. 1
Revision History ............................................................................... 2
Quick Start Guide ............................................................................. 3
Evaluation Board Hardware ............................................................ 4
Power Supplies .............................................................................. 4

REVISION HISTORY

3/12—Rev. 0 to Rev. A
Changes to Features Section and General Description
Section ................................................................................................ 1
Added Evaluation Kit Contents Section, Additional Equipment Section, Documents Needed Section, Required Software Section, and Evaluation Board Section; Deleted Block Diagram
Section; Replaced Figure 1 .............................................................. 1
Added Quick Start Guide Section .................................................. 3
Deleted Hardware Description Section and Figure 3,
Renumbered Sequentially ................................................................ 3
Changes to Evaluation Board Hardware Section and Power
Supplies Section ................................................................................ 4
Replaced Figure 2; Added Input Signals Section, Output Signals
Section, and Default Operations Section ...................................... 4
Deleted Software Description Section, Programmable Software
Settings Section, and Figure 4 ......................................................... 4
Added Evaluation Board Setup Procedure Section Software
Installation Section, and Figure 3 to Figure 5 ............................... 5
Added Windows Vista and Windows 7 Software Installation
Guide Section and Figure 6 to Figure 9 ......................................... 6
Added Windows XP Driver Installation Guide Section and
Figure 10 to Figure 14 ...................................................................... 7
Added Figure 15 and Figure 16....................................................... 8
Input Signals...................................................................................4
Output Signals ...............................................................................4
Default Operation .........................................................................4
Evaluation Board Setup Procedure .................................................5
Software Installation .....................................................................5
Evaluation Board Software ...............................................................8
Evaluation and Test ........................................................................ 10
Evaluation Board Schematics and Artwork ................................ 12
Ordering Information .................................................................... 18
Bill of Materials ........................................................................... 18
Related Links ................................................................................... 19
Changes to Evaluation Board Software Section, Added
Figure 17 ............................................................................................. 9
Added Figure 18 ............................................................................. 10
Added Evaluation and Test Section, Figure 19, and
Figure 20 .......................................................................................... 11
Changed Evaluation Board Schematics Section to Evaluation
Board Schematics and Artwork Section ...................................... 12
Changes to Figure 21 ...................................................................... 12
Changes to Figure 22 ...................................................................... 13
Added Figure 23 ............................................................................. 14
Added Figure 24 ............................................................................. 15
Added Figure 25 ............................................................................. 16
Added Figure 26 ............................................................................. 17
Added Figure 27 ............................................................................. 18
Added Figure 28 ............................................................................. 19
Changes to Table 1 .......................................................................... 18
Added Related Links Section ................................
7/11—Revision 0: Initial Version
........................ 19
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QUICK START GUIDE

Use the following steps to evaluate the ADF4108 device:
1. Install the Int-N software.
2. Follow the hardware driver installation procedure.
3. Connect the power supplies to the EV-ADF4108EB1Z: a. The 5.5 V power supply to the on-board banana connectors. b. The 15 V power supply to test points labeled +15 V and AGND1.
4. Connect the USB cable to the PC and to the EV-ADF4108EB1Z.
5. Run the Int-N software.
6. Select the ADF4108 device and the USB board in the Select Device and Connection tab of the software front panel window.
7. Ensure that the message “board connected” appears on front panel.
8. Connect the reference frequency to REFIN (SMA).
9. Click the Main Controls tab to input RF Settings and Settings.
10. Note that the Phase Detector Polarity drop-down list in the Settings section should be set to Negative to suit the active loop filter in
inverting mode.
11. Update all registers.
12. Connect the output to a signal source analyzer. The board offers two outputs. a. VCO/2 via SMA labeled VCO/2 b. VCO via SMA labeled EXT_VCOOUT
13. Measure the results.
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EVALUATION BOARD HARDWARE

The evaluation board comes with a mini-USB cable to connect to the USB port of a PC. The evaluation board silkscreen is shown in Figure 2. The EV-ADF4108EB1Z schematics are shown in Figure 21, Figure 22, Figure 23, and Figure 24.

POWER SUPPLIES

The board is powered via two external supplies, 5.5 V and 15 V, and connected as described in the Quick Start Guide Section on page 3.

INPUT SIGNALS

The necessary reference input can be from an external generator. A low noise, high slew rate reference source is best for achieving the stated performance of the ADF4108. This reference source is connected to the SMA connector REFIN. A second option is to solder a footprint-compatible TCXO to Footprint Y1.

OUTPUT SIGNALS

The VCO output is available at EXT_VCOOUT through a standard SMA connector. A divide by 2 option is also available at the SMA connector VCO/2. To use an alternate loop filter and VCO, the charge pump output CPOUT and the VCO tune voltage VTUNE are available as outputs via standard SMA connectors.

DEFAULT OPERATION

All components necessary for LO generation can be inserted on the board. The board is shipped with the ADF4108 synthesizer, an active loop filter, and the VCO.
An active loop filter using standard feedback is inserted between the charge pump output and the VCO input. The design parameters for the loop filter are for a center frequency of 7500 MHz, a PFD frequency of 2500 kHz, and an active loop filter bandwidth of 17 kHz. To design a filter for different frequency setups, use the ADIsimPLL simulation software to generate filter component values and evaluate results.
Figure 2. Evaluation Board Silkscreen
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EVALUATION BOARD SETUP PROCEDURE

SOFTWARE INSTALLATION

Use the following steps to install the USB drivers and Int-N software.
1. Install the Analog Devices Int-N software by double-
clicking ADI_Int-N_Setup.msi. If you are using Windows XP, follow the instructions in the Windows XP Software Installation Guide section (see Figure 3 to Figure 7).
If you are using Windows Vista or Windows 7, follow the instructions in the Windows Vista and Windows 7 Software Installation Guide section (see Figure 8 to Figure 12).
Note that the software requires Microsoft Windows Installer and Microsoft .NET Framework 3.5 (or higher). The installer connects to the Internet and downloads Microsoft .NET Framework automatically. Alternatively, before running the ADI_Int-N_Setup.msi, both the installer and .NET Framework can be installed from the CD provided.
Figure 4. Windows XP Int-N Software Installation, Select Installation Folder
2. Choose an installation directory, and then click Next.
2. Plug the USB cable into the USB connector on the
evaluation board. If you are using Windows XP, follow the steps in the Windows XP Driver Installation Guide section (see Figure 13 to Figure 16).
On Windows Vista or Windows 7, the drivers install automaticall y.

Windows XP Software Installation Guide

Figure 3. Windows XP Int-N Software Installation, Setup Wizard
1. Click Next.
Figure 5. Windows XP Int-N Software Installation, Confirm Installation
3. Click Next.
Figure 6. Windows XP Int-N Software Installation, Logo Testing
4. Click Continue Anyway.
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Figure 7. Windows XP Int-N Software Installation, Installation Complete
3. Click Close.

Windows Vista and Windows 7 Software Installation Guide

Figure 8. Windows Vista/7 Int-N Software Installation, Setup Wizard
1. Click Next.
Figure 10. Windows Vista /7 Int-N Software Installation, Confirm Installation
3. Click Next.
Figure 11. Windows Vista/7 Int-N Software Installation, Start Installation
4. Click Install.
Figure 9. Windows Vista/7 Int-N Software Installation, Select Installation
Folder
2. Choose an installation directory, and then click Next.
5. Click Close.
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Figure 12. Windows Vista/7 Int-N Software Installation, Installation Complete
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Windows XP Driver Installation Guide

Figure 13. Windows XP USB Adapter Board Driver Installation, Found New
Hardware Wizard
1. Select the Yes, this time only option, and then click Next.
Figure 14. Windows XP USB Adapter Board Driver Installation, Installation
Options
2. Click Next.
Note that the window in Figure 14 may list Analog Devices RFG.L Eval Board instead of ADF4xxx USB Adapter Board.
Figure 15. Windows XP USB Adapter Board Driver Installation, Logo Testing
3. Click Continue Anyway.
Figure 16. Windows XP USB Adapter Board Driver Installation, Complete
Installation
4. Click Finish.
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EVALUATION BOARD SOFTWARE

The control software for the EV-ADF4108EB1Z accompanies the EV-ADF4108EB1Z on a CD. To install the software, see the Software Installation section.
To run the software, click the Int-N v7 file on the desktop or in the Start menu.
On the Select Device and Connection tab, choose your device and your connection method, and then click Connect.
Confirm that “Analog Devices RFG.L Eval Board connected” is displayed at the bottom left of the window (see Figure 17). Otherwise, the software has no connection to the evaluation board.
Note that, when connecting the board, it takes about 5 to 10 seconds for the status label to change.
Under the File menu, the current settings can be saved to, and loaded from, a text file.
Figure 17. Software Front Panel Display—Select Device and Connection
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The Main Controls tab controls the PLL settings (see Figure 18).
Use the RF Settings section to control the output frequency. You can type the desired output frequency in the RF VCO Output Frequency text box (in MHz).
Use the Reference Frequency text box to set the correct reference frequency and the reference frequency divider. The default reference on the software window is at 100 MHz.
The Settings section lets you select general options available for the PLL, including the charge pump current settings and phase detector polarity. The EV-ADF4108EB1Z uses a charge pump setting of 5 mA and a negative Phase Detector Polarity.
In the Registers tab, you can manually input the desired value to be written to the registers.
In the Sweep and Hop tab, you can make the device sweep a range of frequencies or hop between two set frequencies.
In the Latches/Registers section at the bottom of the window, the values to be written to each register are displayed. If the background on the text box is green, the value displayed is different from the value actually on the device. Click Wr it e R Counter Latch or Write N Counter Latch to write that value to the device. To update all Latches in the correct order, click Write all Latches.
Figure 18. Software Front Panel Display—Main Controls
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EVALUATION AND TEST

To evaluate and test the performance of the ADF4108, use the following steps:
1. Install the Analog Devices Int-N software
2. Use ADIsimPLL to generate the loop filter component
values if a different loop filter is required.
3. Solder new filter components specified by ADIsimPLL.
4. Install the USB software drivers. Connect the evaluation
board to a PC using the supplied USB cable. Follow the hardware driver installation procedure that appears.
5. Connect the USB connector to the EV-ADF4108EB1Z.
6. Connect a Reference signal to REFIN.
7. Connect a spectrum analyzer to EXT_VCOOUT OR
VCO/2.
8. Run the Int-N software.
9. Select the USB board and the ADF4108 device in the
Select Device and Connection tab of the software front panel window.
10. On the Main Controls tab, set the VCO center frequency
(Figure 19 uses a 7.5 GHz VCO). Set the PFD frequency as specified in ADIsimPLL, and program the Reference frequency to match Reference connected to SMA Connector REFIN (or the TCXO). See Figure 20 for the suggested setup.
11. Measure the output spectrum. Figure 19 shows a 7.5 GHz
output.
Figure 19. Spectrum Analyzer Display
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SPECTRUM ANALYZER
PC
EXTERNAL DC
GND
EXTERNAL DC
SUPPLY
TCXO
VCO
ACTIVE LOOP
FILTER
PLL
POWER
LED
USB INTERFACE
REFERENCE IN (REFERENCE O UT)
PLL
LOCK
CPOUT
AGND
+15V
VTUNE VVCO
VCO/2
EXT_VCOOUT
DETECT LED
POWER
SUPPLIES
SIGNAL
GENERATOR
POWER
SUPPLIES
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Figure 20. Typical Evaluation Setup
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EVALUATION BOARD SCHEMATICS AND ARTWORK

Figure 21. Evaluation Board Schematic (Page 1)
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Figure 22. Evaluation Board Schematic (Page 2)
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Figure 23. Evaluation Board Schematic (Page 3)
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Figure 24. Evaluation Board Schematic (Page 4)
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Figure 25. Layer 1 (Component Side)
Figure 26. Layer 2 (Ground Plane)
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Figure 27. Layer 3 (Power/Ground Plane)
Figure 28. Layer 4 (Solder Side)
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C26, C27
NPO SMD ceramic capacitor, 0603, 50 V, 10 pF

ORDERING INFORMATION

BILL OF MATERIALS

Table 1.
Reference Designator Part Description
+5V, +15V, 3V3_USB,1 5V_USB,1 AVD D,1 CE,1 CLK,1 DATA,1 DVDD,1 LE,1 MUXOUT,
AGND, AGND1 Black test point C1 Capacitor, 0603, 50 V, 680 pF, COG/NPO C2 Capacitor, 0603, X7R, 50 V, 68 nF C3 Capacitor, 0603, X7R, 50 V, 1.8 nF C4 Capacitor, 0603, X7R, 50 V, 2.7 nF C5, C8, C19, C21, C22, C28, C30, C32,
C33 C6, C7, C20, C42, C44, C45, C46, C53,
C54, C55, C57, C58, C59, C60 C9 X5R ceramic capacitor, 0402, 6.3 V, 0.22 µF C10, C16, C18, C24, C38, C41, C52, C56 NP0 ceramic capacitor, 0402, 50 V, 10 pF C11, C12, C49 NP0 ceramic capacitor, 0603, 50 V, 1 nF C13, C48, C51 Tantalum capacitor (TAJ-A Case), RTAJ _A, 6.3 V, 22 µF C14, C25, C29, C39 COG ceramic capacitor, 0402, 50 V, 100 pF C15, C31, C47, C50 Capacitor, X5R, 0805, 1.0 μF, 50 V C17 Capacitor, X5R 0805, 10 V, 10 μF, 10% C23, C37 X5R ceramic capacitor, 0402, 25 V, 0.1 µF
1
OPBIAS,1 T1,1 T2,1 RIG, VP1
Red test point
Capacitor, 0603, 1 μF, 10 V, X5R
X7R ceramic capacitor, 0402,16 V, 0.1 µF
C34 Multilayer ceramic capacitor, 0603, 10 pF C35 X5R ceramic capacitor, 0805, 6.3 V, 22 µF C36 Capacitor, CASE B, 100 μF, 6.3 V, RTA J_B C40 Capacitor, 0402, 100 pF, 50 V, NP0 C431 Capacitor, RTAJ_D CPOUT, REFIN, VTUNE, VVCO Conn jack end launch PC gold SMA D1, D4 LED, green D2 Diode, standard, 1 A, 50 V D3 LED, red EXT_VCOOUT, VCO/2 High frequency SMA end launch connector—142-0761-801 GND Black 4mm banana socket L1 Ferrite bead, 470 Ω @ 100MHz L2 Inductor, SMT Power EPL2014 Series, 4.7 µH R1 Resistor, 0603, 390 Ω R2 Resistor, 0603, 510 Ω R3, R28, R38 Resistor, 0603, 1 kΩ R4 Resistor, 0603, 5.1 kΩ R5, R10, R21, R24, R26, R27, R29, R32,
R35, R37, R43, R46, R48, R52, R53, R56, R57, R58, R60, R61
R6,1 R31,1 R34,1 R55,1 R671 Resistor, 0402 R7, R59, R62 Resistor, 0603, 10 kΩ R8, R23 Resistor, 0603, 47 kΩ R9, R18, R19 Resistor, 0603, 330 Ω R11,1 R13,1 R14,1 R15,1 R17,1 R22,1 R25,1
1
R30,
R33,1 R36,1 R42,1 R47,1 R51,1
1
R54,
R631
Resistor, 0603, 0 Ω
Resistor, 0603
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R16, R64, R65,
Resistor, 0402, 0 Ω
R40
Resistor, 0603, 140 kΩ
U7
64 K, I2C Serial EEPROM
Reference Designator Part Description
R12 Resistor, 0603, 49.9 Ω
R20 Resistor, 0603, 10 Ω R39 R49, R50, Resistor, 0603, 2.2 kΩ
R41 Resistor, 0603, 78.7 kΩ R44, R45, Resistor, 0603, 100 kΩ R66 Resistor, 0402, 0.33 Ω U1 ADF4108, PLL frequency synthesizer U2, U3, U10, U13 ADP150AUJZ-3.0, 3.0 V linear regulator U4 OP184, single op amp U5 ADP3334, adjustable LDO regulator U6 USB microcontroller
U8 ADP7104ARDZ-5.0, linear regulator U9 Power divider, 6 dB, 1 W, 0603 SMD U11 VCO, dual output and divide by 2 prescaler U12 Attenuator, 3 dB, 50 Ω, 0805 SMD VSUPPLY Red 4 mm banana socket Y11 TX-500 temperature compensated crystal oscillator, 100.0 MHz Y2 SMD crystal, 24.0 MHz
1
Do not insert.

RELATED LINKS

ADF4108 Product Page, PLL Frequency Synthesizer ADP150AUJZ Product Page, Ultralow Noise, 150 mA CMOS Linear Regulator OP184 Product Page, Single-Supply Rail-to-Rail Input/Output Operational Amplifier ADP3334 Product Page, High Accuracy Low IQ, 500 mA anyCAP® Adjustable Low Dropout Regulator ADP7104ARDZ Product Page, 20 V, 500 mA, Low Noise, CMOS LDO
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UG-160 Evaluation Board User Guide
AR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL
NOTES
I2C refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors).
EEB Caution EEB (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 e nergy EEB. Therefore, proper EEB 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 Boa rd”), you are agreeing to be bound by the term s 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 shal l gover n. Do not u se t he 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. Further more, 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. CONFIDENTIALIT Y. This Agreement and the Evaluation Board shal l all be considered the confidential and proprieta ry information of AD I. 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 ter mination 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 Directi ve. TERMINATI ON. 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 REP RESENTATIONS OF ANY KIND WIT H RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATI ONS, ENDORSEMENTS, GUARANTEES, OR WAR RANTIES, EXPRESS OR IMPLIED, RELATED TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICUL 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 B UT NOT LIMITED TO LOST PRO FITS, DELAY COSTS, LABOR COST S OR LOSS OF GOODW ILL. ADI’S TOTAL LIABILITY FR OM 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 re garding this Agreement will b e heard in the state or fe deral courts having j uriEBiction in Suffolk County, Massachusetts, and Customer hereby submits to the personal juriEBiction and venue of such courts. The United Nations Convention on Contracts for the Intern ational Sale of Goo ds shall not ap ply to this Agreement and is expressly disclaimed.
©2010–2012 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners. UG09145-0-3/12(A)
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