ANALOG DEVICES UG-393 Service Manual

Evaluation Board User Guide

UG-393

10621-001

SDP-S

(TO BE PURCHAS E D

SEPARATELY)

One Technology Way • P. O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: [phone] • Fax: [phone] • www.analog.com

Evaluation Board for the ADF4157 Fractional-N PLL Frequency Synthesizer

FEATURES

Self-contained evaluation board, including frequency

synthesizer, VCO, TCXO for reference frequency, and
loop filter

Designed for 10 MHz PFD frequency, minimum charge pump

current, and a 20 kHz loop bandwidth

Accompanying software allows complete control of

synthesizer functions from a PC

EVALUATION KIT CONTENTS

EV-ADF4157SD1Z 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 ADF4157 data sheet
Electronic version of the UG-393 user guide

ADDITIONAL EQUIPMENT

PC running Windows XP or more recent version

SDP-S board (system demonstration platform, serial only)

Spectrum analyzer
Oscilloscope (optional)

DOCUMENTS NEEDED

ADF4157 data sheet
UG-393 user guide

REQUIRED SOFTWARE

Analog Devices Frac-N PLL software (Version 4 or higher)

ADIsimPLL

GENERAL DESCRIPTION

This evaluation board allows the user to evaluate the performance
of the ADF4157 frequency synthesizer for phase-locked loops
(PLLs). The SDP-S controller board allows software programming
of the frequency synthesizer. Figure 1 shows the board, which
contains the ADF4157 synthesizer, the power supplies, a TCXO
reference, and an RF output signal. There is also a loop filter
(20 kHz), a VCO (Z-Communications, Inc., V940ME03-LF),
and an external reference SMA input. The evaluation board is
set up for a 10 MHz PFD frequency.

Figure 1 shows the board with all necessary components inserted.

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.

EVALUATION BOARD

Figure 1. EV-ADF4157SD1Z with SDP-S

Rev. 0 | Page 1 of 24

UG-393 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

REVISION HISTORY

7/12—Revision 0: Initial Version

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

Output Signals ...............................................................................4

Default Operation and Jumper Selection Settings ....................5

System Demonstration Platform (SDP) .....................................5

Evaluation Board Setup Procedure .................................................6

Installing the Frac-N PLL Software ............................................6

Evaluation Board Software ............................................................ 10

Evaluation and Test ........................................................................ 12

Evaluation Board Schematics and Artwork ................................ 13

Bill of Materials ............................................................................... 20

Related Links ................................................................................... 21

Rev. 0 | Page 2 of 24

Evaluation Board User Guide UG-393

QUICK START GUIDE

Follow these steps to evaluate the ADF4157 frequency synthesizer
after ensuring that the on-board links are correct with reference
to Table 1:

1. Install the Analog Devices Frac-N PLL software.

2. Connect the SDP-S motherboard to the PC and to the

EV-ADF4157SD1Z.

3. Follow the hardware driver installation procedure that

appears if you are using Windows® XP.

4. Connect the power supplies to banana connectors (6 V

to 12 V).

5. Run the Frac-N PLL software.

6. Select the SDP board and the ADF4157 device in the Select

Device and Connection tab of the main wi ndow.

7. Click the Main Controls tab, and then update all registers.

8. Connect the spectrum analyzer to J2.

9. Measure the results.

Rev. 0 | Page 3 of 24

UG-393 Evaluation Board User Guide

10621-002

EVALUATION BOARD HARDWARE

The evaluation board requires the use of an SDP-S motherboard to
program the device. The SDP-S is not included with the evaluation
board. The EV-ADF4157SD1Z schematics are shown in Figure 21
to Figure 23.

POWER SUPPLIES

The board is powered from external banana connectors. The
voltage can vary between 6 V and 12 V. The power supply circuit
provides 3.0 V to the V
to choose either 3.0 V or 5 V for the V
synthesizer. The default settings for V
respectively. Note that V
exceeding this voltage level may damage the device.

External power supplies can be used to directly drive the ADF4157
frequency synthesizer. In this case, the user must insert SMA
connectors as shown in Figure 2.

INPUT SIGNALS

A 10 MHz TCXO reference source from Fox Electronics is fitted
as the default option. An external reference generator can also be
used as the reference input. A low noise, high slew rate reference
source is required to achieve the specified performance of the

ADF4157 frequency synthesizer. An SMA connector fitted to

J11 can be connected to an external reference generator and
used as the reference source. Alternatively, the edge mount
connector, J5, can be inserted and used instead of J11. To use
any external reference option, remove the 0 Ω R16 and R14 links.

Digital SPI signals are supplied through the SDP connector, J1.
The SDP-S board is recommended. The SDP-Blackfin (SDP-B)
board can also be used, but Resistor R57 must be removed from
the SDP-B board. Some additional spurious low frequencies may
appear if the SDP-B connector is used.

of the ADF4157 and allows the user

DD

of the ADF4157 frequency

P

and VP are 3.0 V and 5 V,

DD

should never exceed 3.3 V because

DD

Figure 2. Evaluation Board Silkscreen

OUTPUT SIGNALS

All components necessary for local oscillator (LO) generation
are on the board. The PLL comprises the ADF4157 frequency
synthesizer, a passive loop filter, and the VCO. A 5.8 GHz VCO
from Z-Communications is supplied with the evaluation board.
A 20 kHz low-pass filter is inserted between the charge pump
output and the VCO input. The 0.31 mA charge pump current
setting is used. The VCO output is available at RFOUT through
a standard SMA connector, J2. The MUXOUT signal can be
monitored at Test Point T8 or at SMA Connector J3.

Rev. 0 | Page 4 of 24

Evaluation Board User Guide UG-393

DEFAULT OPERATION AND JUMPER SELECTION SETTINGS

Link positions and their respective functions are outlined in
Table 1.

Table 1. Link Positions and Functions

Link Position Options Description

LK1 A R1A Not used
B RSET Normal operation
LK2 A GND Hardware power-down
B VDD Normal operation
LK3 (VDD) A 5 V Not used
B 3 V Normal operation
LK4 (V
B 3 V VCO supply (3 V)
LK5 (VP) A 5 V VP supply (5 V)
B 3 V VP supply (3 V)

) A 5 V VCO supply (5 V)

VCO

SYSTEM DEMONSTRATION PLATFORM (SDP)

The system demonstration platform (SDP) is a series of controller
boards, interposer boards, and daughter boards that can be
used for easy, low cost evaluation of Analog Devices, Inc.,
components and reference circuits. It is a reusable platform
whereby a single controller board can be reused in various
daughter board evaluation systems.

Controller boards connect to a PC via a USB 2.0 high speed port
and provide a range of communication interfaces on a 120-pin
connector. The pinout for this connector is strictly defined. A
receptacle for this 120-pin connector is included on all SDP
daughter boards, component evaluation boards, and Circuits
from the Lab® reference circuit boards. There are two controller
boards in the platform: the SDP-B, which is based on the Blackfin®

ADSP-BF527, and the SDP-S, which is a serial interface only

controller board. The SDP-S has a subset of the SDP-B functionality.

Interposer boards route signals between the SDP 120-pin con­nector and a second connector. When the second connector is
also a 120-pin connector, the interposer can be used for signal
monitoring of the 120-pin connector signals. Alternatively, the
second connector allows SDP platform elements to be integrated
into a second platform, for example, the BeMicro SDK. More
information on the SDP can be found at www.analog.com/sdp.

Rev. 0 | Page 5 of 24

UG-393 Evaluation Board User Guide

10621-003

10621-004

10621-005

EVALUATION BOARD SETUP PROCEDURE

INSTALLING THE FRAC-N PLL SOFTWARE

Use the following steps to install the SDP drivers and the Analog
Devices Frac-N PLL software.

1. Install the Frac-N PLL software by double-clicking

ADI_PLL_Frac-N_Setup.msi.
If you are using Windows XP, follow the instructions in
the Windows XP Frac-N PLL 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 Frac-N
PLL 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 ADI_PLL_Frac-N_Setup.msi, both the
installer and .NET Framework can be installed from the
CD provided in the evaluation board kit.

2. Connect your SDP board (black) to a PC using the supplied

USB cable.
If you are using Windows XP, follow the steps in the Windows
XP SDP-S Board Driver Installation Guide section (see
Figure 13 to Figure 16).
If you are using Windows Vista or Windows 7, the drivers
install automatically.

2. Choose an installation directory and click Next.

Figure 4. Windows XP Frac-N PLL Software Installation,

Select Installation Folder

3. Click Next.

Windows XP Frac-N PLL Software Installation Guide

1. Click Next.

Figure 3. Windows XP Frac-N PLL Software Installation,

Setup Wizard

Figure 5. Windows XP Frac-N PLL Software Installation,

Confirm Installation

Rev. 0 | Page 6 of 24

Evaluation Board User Guide UG-393

10621-006

10621-007

10621-008

10621-009

4. Click Continue Anyway.

Windows Vista and Windows 7 Frac-N PLL Software Installation Guide

1. Click Next.

Figure 6. Windows XP Frac-N PLL Software Installation,

5. Click Close.

Figure 7. Windows XP Frac-N PLL Software Installation,

Logo Testing

Figure 8. Windows Vista/Windows 7 Frac-N PLL Software Installation,

Setup Wizard

2. Choose an installation directory and click Next.

Installation Complete

Figure 9. Windows Vista/Windows 7 Frac-N PLL Software Installation,

Select Installation Folder

Rev. 0 | Page 7 of 24

UG-393 Evaluation Board User Guide

10621-010

10621-011

10621-012

3. Click Next.

5. Click Close.

Figure 10. Windows Vista/Windows 7 Frac-N PLL Software Installation,

Confirm Installation

4. Click Install.

Figure 11. Windows Vista/Windows 7 Frac-N PLL Software Installation,

Start Installation

Figure 12. Windows Vista/Windows 7 Frac-N PLL Software Installation,

Installation Complete

Rev. 0 | Page 8 of 24