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Evaluation Board for Fractional-N PLL Frequency Synthesizer
FEATURES
Self-contained board, including
Synthesizer
VCO
10 MHz TCXO for reference frequency
Loop filter (5.8 GHz)
Designed for
10 MHz PFD frequency
200 kHz channel spacing
Minimum charge pump current
20 kHz loop bandwidth
Accompanying software allows complete control of
synthesizer function from a PC
Battery operated: choice of 3 V or 5 V supply
Typical phase noise performance of −85 dBc/Hz at 1 kHz
offset from a 5.8 GHz carrier
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
FUNCTIONAL BLOCK DIAGRAM
V
DD
V
VCO
TEST
VCO
TEST
SMA
RF
OUT
SOCKET
TCXO
REF
Rev. A | Page 1 of 8
Evaluation Board User Guide
GENERAL DESCRIPTION
This board allows the user to evaluate the performance of the
ADF4156 frequency synthesizer for PLLs (phase-locked loops).
A block diagram of the evaluation board is shown in Figure 1. It
contains the ADF4156 synthesizer, a PC connector, and SMA
connectors for the power supplies and RF output. There is also a
low-pass loop filter (20 kHz) and a VCO (Z-COMM
V940ME03-LF 5.8 GHz) on board.
The evaluation board is set up for a 10 MHz PFD comparison
frequency. An on-board TCXO provides the 10 MHz reference
frequency. A cable is included with the board to connect to a PC
printer port.
The package also contains Windows® software to allow easy
programming of the synthesizer.
9V BATTERY
POWER SWITCH
ON
OFF
FILTER
ADF4156
EVAL-ADF4156EBZ1
PC CONNECTOR
IN
Figure 1.
V
P
MUXOUT
CE
UG-171
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Table of Contents
Related Manuals for Analog Devices EVAL-ADF4156EBZ1
Summary of Contents for Analog Devices EVAL-ADF4156EBZ1
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Page 1: Features
FUNCTIONAL BLOCK DIAGRAM 9V BATTERY POWER SWITCH TEST FILTER MUXOUT TEST ADF4156 SOCKET EVAL-ADF4156EBZ1 TCXO PC CONNECTOR Figure 1. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT Rev. A | Page 1 of 8 WARNING AND LEGAL TERMS AND CONDITIONS. -
Page 2: Table Of Contents
UG-171 Evaluation Board User Guide TABLE OF CONTENTS Features ....................1 Local Oscillator Components ............3 General Description ................. 1 Test Setup ..................4 Functional Block Diagram .............. 1 Evaluation Board Software ...............5 Revision History ................2 Software Installation and Setup ...........5 Evaluation Board Hardware ............ -
Page 3: Evaluation Board Hardware
Evaluation Board User Guide UG-171 EVALUATION BOARD HARDWARE The evaluation board comes with a cable for connecting to the LOCAL OSCILLATOR COMPONENTS printer port of a PC (see Figure 2 for a PC cable diagram and The 10 MHz TCXO provides the reference frequency. The on- Figure 4 for a test setup configuration). -
Page 4: Test Setup
UG-171 Evaluation Board User Guide TEST SETUP SPECTRUM ANALYZER 9V BATTERY POWER SWITCH FILTER 5.8GHz VCO MUXOUT ADF4156 SOCKET EVAL-ADF4156EBZ1 TCXO PC CONNECTOR Figure 4. Test Setup Rev. A | Page 4 of 8... -
Page 5: Evaluation Board Software
Evaluation Board User Guide UG-171 EVALUATION BOARD SOFTWARE Figure 5. Evaluation Software, Main Window Click Update R0 and R1 (Normal Mode) and then click SOFTWARE INSTALLATION AND SETUP Exit Window. Note that these fields have been replaced by The evaluation board software is provided on the CD that the Rx Updated fields shown in blue. -
Page 6: Evaluation Board Schematics
UG-171 Evaluation Board User Guide EVALUATION BOARD SCHEMATICS Figure 6. Evaluation Board Schematic (Page 1) Rev. A | Page 6 of 8... - Page 7 Evaluation Board User Guide UG-171 Figure 7. Evaluation Board Schematic (Page 2) Rev. A | Page 7 of 8...
- Page 8 By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you have read and agreed to the Agreement.
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