Analog Devices EVAL-ADF4150EB1Z Manual de usuario

Evaluation Board User Guide

UG-380

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 ADF4150PLL Frequency Synthesizer

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.Rev. 0 | Page 1 of 24

FEATURES

General-purpose evaluation board for ADF4150,including

VCO, loop filter, and TCXO

Contains the ADF4150 frequency synthesizer (500 MHz to

5 GHz)

Accompanying software allows complete control of

synthesizer functions from a PC

EVALUATION KIT CONTENTS

EVAL-ADF4150EB1Z 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 ADF4150 data sheet

Electronic version of the UG-380 user guide

ADDITIONAL EQUIPMENT

PC running Windows XP or more recent version

Power supply

Spectrum analyzer

Oscilloscope (optional)

DOCUMENTS NEEDED

ADF4150 data sheet

REQUIRED SOFTWARE

Analog Devices ADF4150 software (Version 3 or higher)

ADIsimPLL

GENERAL DESCRIPTION

This board is designed to allow the user to evaluate the perfor-

mance of the ADF4150 frequency synthesizer for phase-locked

loops (PLLs). Figure 1 shows the board, which contains the

ADF4150 synthesizer, loop filter, voltage control oscillator

(VCO), reference oscillator (TCXO) of 25 MHz frequency 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

10552-001

Figure 1. EVAL-ADF4150EB1Z

UG-380 Evaluation Board User Guide

Rev. 0 | 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 ........................................................................ 13

Evaluation Board Schematics and Artwork................................ 14

Bill Of Materials.............................................................................. 22

Related Links................................................................................... 23

REVISION HISTORY

3/12—Revision 0: Initial Version

Evaluation Board User Guide UG-380

Rev. 0 | Page 3 of 24

QUICK START GUIDE

Follow these steps to quickly evaluate the ADF4150 device:

1. Install the ADF4150 software.

2. Connect the ADF4150EB1Z evaluation 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 ADF4150 software.

6. Connect the spectrum analyzer to SMA connector

VCO_I/O.

7. Measure the results.

UG-380 Evaluation Board User Guide

Rev. 0 | Page 4 of 24

EVALUATION BOARD HARDWARE

The E VA L -ADF4150EB1Z schematics are shown in Figure 23,

Figure 24, Figure 25 and Figure 26. The silkscreen of the

evaluation board is shown in Figure 2.

POWER SUPPLIES

The board is powered from external banana connectors. The

supply 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 AVDD , DVDD ,

and SDVDD pins) and 5 V to the ADF4150 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 the TCXO from

the reference input and from the supply. R3 can be populated

with a 50 Ω resistor to adjust the impedance matching of the

evaluation board to the external reference source.

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 ADF4150 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 26. 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, and

the differential RF output of the part is connected to the

RFOUT+ and RFOUT− edge mount SMA connectors.

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 = 2.325 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.

10552-002

Figure 2. Evaluation Board Silkscreen

Evaluation Board User Guide UG-380

Rev. 0 | Page 5 of 24

EVALUATION BOARD SETUP PROCEDURE

SOFTWARE INSTALLATION

Use the following steps to install the software.

1. Install the Analog Devices ADF4150 software by double-

clicking ADF4150 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 ADF4150 Setup.msi, both the installer

and .NET Framework can be installed from the CD

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

10552-003

Figure 3. Windows XP ADF4150 Software Installation, Setup Wizard

1. Click Next.

10552-004

Figure 4. Windows XP ADF4150 Software Installation, Select Installation

Folder

2. Choose an installation directory and click Next.

UG-380 Evaluation Board User Guide

Rev. 0 | Page 6 of 24

10552-005

Figure 5. Windows XP ADF4150 Software Installation, Confirm Installation

3. Click Next.

10552-006

Figure 6. Windows XP ADF4150 Software Installation, Logo Testing

4. Click Continue Anyway.

10552-007

Figure 7. Windows XP ADF4150 Software Installation, Installation Complete

5. Click Close.

Windows Vista and Windows 7 Software Installation Guide

10552-008

Figure 8. Windows Vista/7 ADF4150 Software Installation, Setup Wizard

1. Click Next.

10552-009

Figure 9. Windows Vista/7 ADF4150 Software Installation, Select Installation

Folder

2. Choose an installation directory and click Next.

Evaluation Board User Guide UG-380

Rev. 0 | Page 7 of 24

10552-010

Figure 10. Windows Vista/7 ADF4150 Software Installation, Confirm Installation

3. Click Next.

10552-011

Figure 11. Windows Vista/7 ADF4150 Software Installation, Start Installation

4. Click Install.

10552-012

Figure 12. Windows Vista/7 ADF4150 Software Installation,

Installation Complete

5. Click Close.

Windows XP Driver Installation Guide

10552-013

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

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

10552-014

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-380 Evaluation Board User Guide

Rev. 0 | Page 8 of 24

10552-015

Figure 15. Windows XP USB Driver Installation, Logo Testing

3. Click Continue Anyway.

10552-016

Figure 16. Windows XP USB Driver Installation, Complete Installation

4. Click Finish.

Evaluation Board User Guide UG-380

Rev. 0 | Page 9 of 24

EVALUATION BOARD SOFTWARE

The control software for the E VA L -ADF4150EB1Z 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 ADF4150 file on the desktop or in the

Start menu (note that the revision number may be included in

the file name). 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.

10552-017

Figure 17. Software Front Panel Display

UG-380 Evaluation Board User Guide

Rev. 0 | 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 Output Frequency section to control the output

frequency. To achieve single-tone on the RF 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 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. When the Activate f2 frequency is reached,

the sweep is repeated. Note that the Sweep option is not allowed

if the Activate f1 and Activate f2 frequencies require different

settings for the output divider (the Out Div box in the Outputs

section). However, the Alternate option allows both frequencies

to be achieved with different output divider values.

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

windows (see Figure 18).

Click the REGISTERS button to display the binary and

hexadecimal values for all registers, as shown in Figure 20.

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, 4, 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

ADF4150 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; for example, the highest allowed

value for Phase in Register 1 Settings window depends on

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 box in the 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.

By clicking the Frac/Mod button, you can choose different

modes of operation, including programming of specified

integer, modulus, fractional, and output divider values. The

output frequency and channel spacing are calculated automati-

cally when the values shown in Figure 19 are entered in the

Frac_Mod_Form window.

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