Analog Devices EV-ADF4360-7EB1Z User manual

Evaluation Board User Guide
UG-104
One Technology Way •P. O. Box 9106 •Norwood, MA 02062-9106, U.S.A. •Tel: [phone] •Fax: [phone] •www.analog.com
Evaluation Board for ADF4360-7 Integrated PLL and VCO Frequency Synthesizer
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.Rev. B | Page 1 of 16
FEATURES
Self-contained board for generating RF frequencies
Flexibility for reference input, PFD frequency, and loop
bandwidth
Accompanying software allows complete control of
synthesizer functions from a PC
Flexibility for changing the external inductor to allow
different VCO output frequency ranges
USB/battery-operated 9 V supplies
Typical phase noise performance of −143 dBc/Hz at 3 MHz offset
Typical spurious performance of −70 dBc at 200 kHz offset
(900 MHz output)
GENERAL DESCRIPTION
The EV-ADF4360-7EB1Z evaluation board is designed to allow
the user to evaluate the performance of the ADF4360-7 frequency
synthesizer consisting of an integrated PLL and VCO (see Figure 1).
It contains the ADF4360-7BCPZ, a USB connector, and SMA
connectors for the RF outputs. Unpopulated SMA footprints are
available for the power supplies, the chip enable (CE), and the
external reference input. The evaluation board also contains
the loop filter to complete the PLL. It can be modified as necessary
for the PLL requirements of the user. A cable is included with
the board to connect a PC parallel port to allow software pro-
grammability.
The package also contains a CD with Windows® software to allow
quick, user-friendly programming of the synthesizer. The CD
contains additional PLL data sheets, technical notes, articles, and
ADIsimPLL™ V3.4 (Analog Devices, Inc., PLL simulation
software). More information is available at www.analog.com/pll.
EVALUATION BOARD PHOTOGRAPH
08891-001
Figure 1.
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UG-104 Evaluation Board User Guide
Rev. B | Page 2 of 16
TABLE OF CONTENTS
Features .............................................................................................. 1
General Description ......................................................................... 1
Evaluation Board Photograph......................................................... 1
Revision History ............................................................................... 2
Evaluation Board Hardware ............................................................ 3
RF Output Stages .......................................................................... 3
External Inductor Options .......................................................... 4
Evaluation Board Software Quick Start Procedures .................... 5
Windows XP OS ............................................................................5
Windows Vista OS and Windows 7 (32-bit) OS...........................6
Windows 7 64-Bit OS ...................................................................6
Using the Evaluation Board Software .............................................7
Evaluation Board Schematic ............................................................9
Ordering Information.................................................................... 12
Bill of Materials........................................................................... 12
REVISION HISTORY
2/12—Rev. A to Rev. B
Changed ADF4360-7EBZ1 to ADF4360-7EB1Z ..........................1
Changed EVA L -ADF4360-7EBZ1 to EV-ADF4360-7EB1Z
Throughout ........................................................................................5
Changed EVAL-ADF4360-xEBZ1 to EV-ADF4360-7EB1Z........7
6/11—Rev. 0 to Rev. A
Changes to Features Section ............................................................1
Added Evaluation Board Software Quick Start Procedures
Section.................................................................................................5
Changes to Using the Evaluation Board Software Section ..........7
Changes to Evaluation Board Schematic Section..........................9
Changes to Bill of Materials Section .............................................12
7/10—Revision 0: Initial Version
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Evaluation Board User Guide UG-104
Rev. B | Page 3 of 16
EVALUATION BOARD HARDWARE
The evaluation board comes with a cable to connect to the
USB port of a PC. The silkscreen and cable diagram for the
evaluation board are shown in Figure 2. The board schematics
are shown in Figure 11 through Figure 13.
08891-002
Figure 2. Evaluation Board Silkscreen—Top View
The board is powered from a single 9 V battery, or from the
USB supply, by changing the position of Switch SW1. All com-
ponents necessary for LO generation are catered for on-board. A
10 MHz TCXO from Fox Electronics provides the necessary
reference input. Otherwise, an external reference signal can
be connected via J3. (Remove power and signal from the TCXO
by removing Resistors R4 and R5). The PLL comprises the
ADF4360-7BCPZ and a passive loop filter. The VCO output
from RFOUTA is available through the standard SMA Connector
J1 and the complementary RFOUTB VCO output is available
from J2.
Users may provide their own power supplies using the J4 and J5
connectors, as shown in Figure 2. Hardware power-down using
the CE pin can be controlled by inserting an SMA connector
into J6 and removing R12.
The on-board filter is a third-order, passive, low-pass filter.
The filter contains three capacitors (C13, C14, and C15) plus
two resistors (R10 and R11). The footprint for R10 is located on
the underside of the board. The design parameters for the loop
filter are for a center frequency of 900 MHz, a PFD frequency
of 200 kHz, and a low-pass filter bandwidth of 10 kHz. To design a
filter for different frequency setups, use the ADIsimPLL simulation
software.
RF OUTPUT STAGES
The output stage of the board allows users to insert a tuned load
for a particular frequency. The particular network inserted in
the board is optimized for 900 MHz operation. For different
frequencies, the output stage needs different component values.
Refer to the ADF4360-7 data sheet for further information. If in
doubt, use a 50 Ω resistor instead of the shunt inductor, a 100 pF
bypass capacitor, and a 0 Ω resistor instead of the series inductor.
It is important that the same components be placed on the
RFOUTA and RFOUTB lines. In addition, it is essential that both
outputs be terminated with 50 Ω loads. Otherwise, the output
power is not optimum, and in some cases, the part may
malfunction.
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UG-104 Evaluation Board User Guide
Rev. B | Page 4 of 16
EXTERNAL INDUCTOR OPTIONS
The ADF4360-7 uses external inductors (L1 and L2) to set up
the LC tank circuit of the VCO. The evaluation board has a
footprint for placing these inductors. A value of 3.9 nH is inserted
on the board giving a VCO center frequency of 900 MHz. For
this inductor value and for other inductor values of greater than
3.3 nH, a 470 Ω resistor in parallel to ground for both L1 and L2
must be inserted, as shown in Figure 3.
08891-004
Figure 3. External Inductors and Resistors for ADF4360-7 Tank Circuit
To find the optimum frequency range for a given inductor, see
Figure 4. Ensure that the desired frequency is between the two
lines and read off the appropriate inductance needed.
300
500
400
1200
1300
1400
1000
1100
800
900
600
700
1500
0 5 10 15 20 3025
EXT INDUCTANCE (nH)
FREQUENCY (MHz)
08891-005
Figure 4. Output Center Frequency vs. External Inductor Value
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Evaluation Board User Guide UG-104
Rev. B | Page 5 of 16
EVALUATION BOARD SOFTWARE QUICK START PROCEDURES
The control software and USB drivers for EV-ADF4360-7EB1Z
accompany the EV-ADF4360-7EB1Z on a CD. To install the
software, use the following steps:
1. Open ADF4360_setup.msi.
2. The install wizard guides you through the installation
process. The software is installed in a default directory called
C:/Program Files/Analog Devices/ADF4360.
The software requires Microsoft’s .NET Framework Version 2.0
or later to be installed on your machine. The installer automati-
cally downloads the framework from the Microsoft website if
you do not have this installed. If you do not have an Internet
connection or have a slow connection on the PC, then you
can install the .NET framework directly from the CD. Do
this by double-clicking dotnetfx.exe. Once installed, run
the ADF4360_Setup.msi again.
WINDOWS XP OS
Once you have installed the software, install the USB drivers.
To do so, use the following steps:
1. Plug in a USB cable to the USB connector on the
evaluation board. The Found New Hardware box
appears. See Figure 5.
2. Choose Install from a list or specified location
(Advanced).
08891-105
Figure 5. New Hardware Wizard
3. Click Continue Anyway when asked about Windows Logo
testing.
4. If the install was successful, the message box in Figure 6
appears.
08891-006
Figure 6. Successful Install
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UG-104 Evaluation Board User Guide
Rev. B | Page 6 of 16
WINDOWS VISTA OS AND WINDOWS 7 (32-BIT) OS
For Windows Vista or Windows 7 (32-bit), you need to
manually install the drivers. To do so, use the following steps:
1. Find the new unknown device (the evaluation board)
in Device Manager and double-click it to open the
properties. The device should be Unknown device,
under Other devices (see Figure 7).
08891-007
Figure 7. Device Manager
2. Click Update Driver in the properties window (see
Figure 8).
08891-008
Figure 8. Unknown Device Properties
3. On the Update Driver Software dialog box, choose
Browse my computer for driver software.
4. Browse to C:\Program Files\Analog Devices\ADF4360.
5. Click OK or Next.
6. If prompted by Windows Security, choose Install this
driver software anyway.
7. If the install was successful, the message box in Figure 9
appears.
08891-009
Figure 9. Successful Install
WINDOWS 7 64-BIT OS
If you are using Windows 7 64-bit OS, it is recommended to
download Windows XP Mode (a Windows XP emulator) from
Microsoft to run the evaluation board software.
Windows XP Mode allows the device driver package to digitally
sign allowing you to use Windows 7 64-bit OS in native mode.
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Evaluation Board User Guide UG-104
Rev. B | Page 7 of 16
USING THE EVALUATION BOARD SOFTWARE
The control software for the EV-ADF4360-7EB1Z accompanies
the EV-ADF4360-7EB1Z on a CD. To install the software, see
the Evaluation Board Software Quick Start Procedures section.
To run the software, click the ADF4360.exe file on the desktop
or in the Start menu.
The main interface window appears (see Figure 10). Confirm
that Analog Devices RFG.L Eval Board connected is displayed
at the top of the window. Otherwise, the software has no connec-
tion to the evaluation board.
The evaluation board can be connected and disconnected while
the software is running. Note that when connecting the board,
it takes about 5 seconds for the status label to change.
Under the File menu, the current settings can be saved to, and
loaded from, a text file.
Use the REF IN Frequency text box to set correct reference
frequency and the reference frequency divider. The reference
TCXO on the evaluation board runs at 10 MHz.
The Settings section controls the charge pump current setting,
the output power setting, and the multiplexer output setting.
Use the Frequency Settings section to control the output
frequency. The user can input the desired output frequency
in the RF Output Frequency text box (in megahertz).
In the Registers tab, the user can manually input the desired
value to be written to the registers.
In the Sweeps and hop tab, the user can make the device sweep
a range of frequencies, or hop between two set frequencies.
In the Latches to write 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, then the value displayed
is different to the value actually on the device. Click Write x
counter Latch to write that value to the device.
The F2,F3, and F4 keys switch between the three tabs. F12
increases the output frequency by one channel spacing and
writes it to the device. F11 decreases the output frequency by
one channel spacing.
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UG-104 Evaluation Board User Guide
Rev. B | Page 8 of 16
08891-010
Figure 10. Software Front Panel Display
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Evaluation Board User Guide UG-104
Rev. B | Page 9 of 16
EVALUATION BOARD SCHEMATIC
08891-011
Figure 11. EV-ADF4360-7EB1Z Schematic
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UG-104 Evaluation Board User Guide
Rev. B | Page 10 of 16
08891-012
Figure 12. EV-ADF4360-7EB1Z Schematic (Continued)
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