Analog Devices EVAL-ADF4151EB1Z Manuale utente

Evaluation Board User Guide

UG-369

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 the ADF4151 PLL Frequency Synthesizer

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS. Rev. A | Page 1 of 24

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 perfor-

mance 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

10482-001

Figure 1. EVAL-ADF4151EB1Z

UG-369 Evaluation Board User Guide

Rev. A | Page 2 of 24

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

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

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

Evaluation Board User Guide UG-369

Rev. A | Page 3 of 24

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.

UG-369 Evaluation Board User Guide

Rev. A | Page 4 of 24

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 VDD on the board (which supplies the ADF4151 AVDDx, DVDD,

and SDVDD pins) to the ADF4151 VDD and 5 V to the ADF4151 VP.

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 microcontrol-

ler, U6, which is used for communication with the USB port of

the PC.

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 ICP = 2.25 mA, and a VCO with a 1.7 GHz

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.

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.

10482-002

Figure 2. Evaluation Board Silkscreen

Evaluation Board User Guide UG-369

Rev. A | Page 5 of 24

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

10482-003

Figure 3. Windows XP ADF4151 Software Installation, Setup Wizard

1. Click Next >.

10482-004

Figure 4. Windows XP ADF4151 Software Installation, Select Installation

Folder

2. Choose an installation directory and click Next >.

UG-369 Evaluation Board User Guide

Rev. A | Page 6 of 24

10482-005

Figure 5. Windows XP ADF4151 Software Installation, Confirm Installation

3. Click Next >.

10482-006

Figure 6. Windows XP ADF4151 Software Installation, Logo Testing

4. Click Continue Anyway.

10482-007

Figure 7. Windows XP ADF4151 Software Installation, Installation Complete

5. Click Close.

Windows Vista and Windows 7 Software Installation Guide

10482-008

Figure 8. Windows Vista/7 ADF4151 Software Installation, Setup Wizard

1. Click Next >.

10482-009

Figure 9. Windows Vista/7 ADF4151 Software Installation, Select Installation

Folder

2. Choose an installation directory and click Next >.

Evaluation Board User Guide UG-369

Rev. A | Page 7 of 24

10482-010

Figure 10. Windows Vista/7 ADF4151 Software Installation, Confirm Installation

3. Click Next >.

10482-011

Figure 11. Windows Vista/7 ADF4151 Software Installation, Start Installation

4. Click Install.

10482-012

Figure 12. Windows Vista/7 ADF4151 Software Installation, Install Complete

5. Click Close.

Windows XP Driver Installation Guide

10482-013

Figure 13. Windows XP USB Driver Installation, Found New Hardware Wizard

1. Choose Yes, this time only and click Next >.

10482-014

Figure 14. Windows XP USB Driver Installation, Install Options

2. Click Next >.

Note that Figure 14 may list Analog Devices RFG.L Eval Board

instead of ADF4xxx USB Adapter Board.

UG-369 Evaluation Board User Guide

Rev. A | Page 8 of 24

10482-015

10482-016

Figure 16. Windows XP USB Driver Installation, Complete Installation

Figure 15. Windows XP USB Driver Installation, Logo Testing

4. Click Finish.

3. Click Continue Anyway.

Evaluation Board User Guide UG-369

Rev. A | Page 9 of 24

EVALUATION BOARD SOFTWARE

The control software for the EVAL-ADF4151EB1Z is available

on the CD included in the evaluation kit. To install the software,

see the Software Installation section.

To run the software, first connect the board to the USB port of

the PC and then click the ADF4151 file on the desktop or in the

Start menu. Confirm that USB OK is displayed at the top right

corner of the software front panel display window (see Figure 17).

Otherwise, the software has no connection to the evaluation board.

Note that, when connecting the board, it takes about 5 sec to

10 sec for the status label to change.

If the software is started before the board is connected to USB

port, an error window opens, informing that the USB device

was not found, and the No USB message is displayed in the top

right corner of the software front panel window. In this case,

connect the board to the USB port and click the Connect USB

button.

10482-017

Figure 17. Software Front Panel Display—Select Device and Connection

UG-369 Evaluation Board User Guide

Rev. A | Page 10 of 24

Use the Frequency text box in the Reference section to set the

correct reference frequency. The default reference on the

software window is at 25 MHz and matches the frequency of the

TCXO present on the board.

Use the VCO Output Frequency section to control the output

frequency. To achieve single-tone on the VCO output, type the

desired output frequency in the Activate f1 text box (in mega-

hertz) and ensure that Stop is selected in the Dynamic section

under VCO Output Frequency. Selecting the Alternate option

causes the frequency on the VCO output to switch between the

Activate f1 and Activate f2 values. The delay time between

frequency switches is controlled by the Approximate Delay

option. The third option of the Dynamic section, Sweep, allows

the output frequency to constantly change with the frequency

step set by Channel Spacing, starting from Activate f1 until it

reaches Activate f2. After the Active f2 frequency is reached,

the sweep is repeated.

Some register settings may need to be set manually. Click the

windows, as shown in Figure 18.

Click the REGISTERS button to display the binary and

hexadecimal values for all registers, as shown in Figure 19.

When a new register setting value is entered (see Figure 18),

the relevant Update Rx (where x = 0 to 5) button becomes red,

indicating that it must be clicked to program the part with the

new value. Clicking the Update ALL button programs all

Click the OK button to confirm the new value in the Register x

Settings (where x = 1, 2, 3, or 5) window (see Figure 18). Click

Update Rx to program the part with the new value. The new

value is retained in the Register x Settings window if it is

opened again.

If the value entered is outside of the range specified in the

ADF4151 data sheet, an error message appears and the field is

automatically updated to the lowest or highest value within the

allowed range. Some limits are changed dynamically based on

the values of other registers; that is, the highest allowed value

for Phase in the Register 1 Settings window depends on the

current value of the modulus (MOD in the Settings section),

which is calculated based on the data from the Reference

section and the Channel Spacing field (under the VCO Output

Frequency section).

Click the Cancel button to abandon a register value change, and

the new value is not retained in the Register x Settings window

if it is opened again.

10482-018

Figure 18. Register Settings Windows for Register 1, Register 2, Register 3, and Register 5

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