ANALOG DEVICES UG-369 Service Manual

Evaluation Board User Guide
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
UG-369
Evaluation Board for the ADF4151 PLL Frequency Synthesizer

FEATURES

General-purpose evaluation board for the ADF4151,
including VCO, loop filter, and TCXO
Contains the ADF4151 frequency synthesizer (500 MHz to
3.5 GHz)
Accompanying software allows complete control of
synthesizer functions from a PC

EVALUATION KIT CONTENTS

EVAL-ADF4151EB1Z 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 ADF4151 data sheet
Electronic version of the UG-369 user guide

ADDITIONAL EQUIPMENT

PC running Windows XP or more recent version Power supply Spectrum analyzer Oscilloscope (optional)

DOCUMENTS NEEDED

ADF4151 data sheet

REQUIRED SOFTWARE

Analog Devices, Inc., ADF4151 software (Version 2 or higher)
ADIsimPLL

GENERAL DESCRIPTION

This board is designed to allow the user to evaluate the perfor­mance of the ADF4151 frequency synthesizer for phase-locked loops (PLLs). Figure 1 shows the board, which contains the
ADF4151 synthesizer, loop filter, voltage control oscillator
(VCO), reference oscillator (TCXO) of frequency 25 MHz for the reference input, power supply connectors, and an RF output.
The evaluation kit also contains software that is compatible with Windows® XP and later versions to allow easy programming of the synthesizer.
A USB port in the PC is required to program the part.

EVALUATION BOARD

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Figure 1. EVAL-ADF4151EB1Z
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS.
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UG-369 Evaluation Board User Guide

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
Input Signals .................................................................................. 4

REVISION HISTORY

2/12—Rev. 0 to Rev. A
Changes to Quick Start Guide Section .......................................... 3
Changes to Power Supply Section .................................................. 4
1/12—Revision 0: Initial Version
Output Signals ...............................................................................4
Default Operation Settings ..........................................................4
Additional Options .......................................................................4
Evaluation Board Setup Procedure .................................................5
Software Installation .....................................................................5
Evaluation Board Software ...............................................................9
Evaluation and Test ........................................................................ 12
Evaluation Board Schematics and Artwork ................................ 13
Ordering Information .................................................................... 21
Bill of Materials ........................................................................... 21
Related Links ............................................................................... 22
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Evaluation Board User Guide UG-369

QUICK START GUIDE

Follow these steps to quickly evaluate the ADF4151 device:
1. Install the ADF4151 software.
2. Connect the EVAL-ADF4151EB1Z board to the PC.
3. Follow the hardware driver installation procedure.
4. Connect the power supplies to banana connectors (5.5 V).
5. Run the ADF4151 software.
6. Connect the spectrum analyzer to SMA connector VCO_I/O.
7. Measure the results.
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UG-369 Evaluation Board User Guide

EVALUATION BOARD HARDWARE

The EVAL-ADF4151EB1Z schematics are shown in Figure 22, Figure 23, Figure 24, and Figure 25. The silkscreen of the evaluation board is shown in Figure 2.

POWER SUPPLIES

The board is powered from external banana connectors. The supplied voltage should be 5.5 V. The power supply circuit uses high precision, low noise ADP150AUJZ-3.3 linear regulators and ADP3334ARMZ adjustable LDO regulators to provide 3.3 V to V
on the board (which supplies the ADF4151 AVDDx, DVDD,
DD
and SDV
pins) to the ADF4151 VDD and 5 V to the ADF4151 VP.
DD

INPUT SIGNALS

The reference signal is necessary for proper operation of the synthesizer. It can be sourced from a provided TCXO or an external generator, which can be connected to the REFIN edge mount connector. To use an external reference generator, it is necessary to remove R1 and R2 to disconnect TCXO from the reference input and from the supply.
Digital SPI signals are supplied from the Cypress microcontrol­ler, U6, which is used for communication with the USB port of the PC.
Optionally, an external VCO can be used. In this case, it is necessary to remove R29 and insert a 0 Ω link at R46 to form a connection between the loop filter output and the VTUNE SMA edge mount connector. Remove R31 to disconnect the on-board VCO from the power supply. Remove Resistor R26 to disconnect the output of the on-board VCO from the RF signal path, and replace Resistors R27 and R28 with 0 Ω links to ensure operation of the VCO_I/O connector as an input from an external VCO.

OUTPUT SIGNALS

All components necessary for LO generation are inserted on the board. The PLL is made up of the ADF4151 synthesizer, a fourth-order passive loop filter, and the VCO. The loop filter must be inserted between the charge pump output and the VCO input, as shown in Figure 25. If replacing the VCO, a VCO in a T-package (or similar) must be used. The RF output is available at the edge mount SMA connector, VCO_I/O.

DEFAULT OPERATION SETTINGS

This board is shipped with a TCXO that provides a reference frequency of 25 MHz, a fourth-order low-pass filter with 30 kHz bandwidth at I
= 2.25 mA, and a VCO with a 1.7 GHz
CP
to 1.8.GHz frequency range. To test the performance of the part for a different frequency range and different loop filter, the relevant components on the board must be changed.

ADDITIONAL OPTIONS

The VVCO connector can be used as a test point to measure the supply voltage of the VCO in its default configuration. It can also be used to provide an external supply for the on-board VCO; however, if an external supply for VCO is used, Resistor R31 must be removed to disconnect the connector from the output of the on-board voltage regulator.
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Figure 2. Evaluation Board Silkscreen
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Evaluation Board User Guide UG-369

EVALUATION BOARD SETUP PROCEDURE

SOFTWARE INSTALLATION

Use the following steps to install the software.
1. Install the Analog Devices ADF4151 software by double-
clicking ADF4151 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 ADF4151 Setup.msi, both the installer and .NET Framework can be installed from the CD that is provided.
2. Connect your board by USB.
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 automatically.

Windows XP Software Installation Guide

Figure 3. Windows XP ADF4151 Software Installation, Setup Wizard
1. Click Next >.
Figure 4. Windows XP ADF4151 Software Installation, Select Installation
Folder
2. Choose an installation directory and click Next >.
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UG-369 Evaluation Board User Guide

Windows Vista and Windows 7 Software Installation Guide

Figure 5. Windows XP ADF4151 Software Installation, Confirm Installation
3. Click Next >.
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Figure 8. Windows Vista/7 ADF4151 Software Installation, Setup Wizard
1. Click Next >.
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Figure 6. Windows XP ADF4151 Software Installation, Logo Testing
4. Click Continue Anyway.
Figure 7. Windows XP ADF4151 Software Installation, Installation Complete
5. Click Close.
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10482-009
Figure 9. Windows Vista/7 ADF4151 Software Installation, Select Installation
Folder
2. Choose an installation directory and click Next >.
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Evaluation Board User Guide UG-369

Windows XP Driver Installation Guide

Figure 10. Windows Vista/7 ADF4151 Software Installation, Confirm Installation
3. Click Next >.
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Figure 13. Windows XP USB Driver Installation, Found New Hardware Wizard
1. Choose Yes, this time only and click Next >.
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Figure 11. Windows Vista/7 ADF4151 Software Installation, Start Installation
4. Click Install.
Figure 12. Windows Vista/7 ADF4151 Software Installation, Install Complete
5. Click Close.
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Figure 14. Windows XP USB Driver Installation, Install Options
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2. Click Next >.
Note that Figure 14 may list Analog Devices RFG.L Eval Board instead of ADF4xxx USB Adapter Board.
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UG-369 Evaluation Board User Guide
Figure 15. Windows XP USB Driver Installation, Logo Testing
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3. Click Continue Anyway.
Figure 16. Windows XP USB Driver Installation, Complete Installation
4. Click Finish.
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