AD9956-VCO/PCB Analog Devices Inc, AD9956-VCO/PCB Datasheet

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AD9956-VCO/PCB

Manufacturer Part Number
AD9956-VCO/PCB
Description
BOARD EVAL 14BIT 1.8V 48LFCSP
Manufacturer
Analog Devices Inc
Datasheets

Specifications of AD9956-VCO/PCB

Module/board Type
Evaluation Board
For Use With/related Products
AD9956
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
DESCRIPTION
This data sheet describes the AD9956/PCB evaluation board
hardware and software. The current version of software
provides a graphical user interface (GUI) that allows easy
communication with the many on-chip functions of the device.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
J2
J1
REFCLK
J3
EVALUATION BOARD FUNCTIONAL BLOCK DIAGRAM
DIVIDER
PLL_OSC
SYSCLK
REFCLK
RF
÷R
PHASE FREQUENCY DETECTOR/
÷M
÷N
SYSCLK
CHARGE PUMP
AD9956
2.7 GHz DDS-Based AgileRF
CML DRIVER
PLL_REF
PLL_OSC
DDS
CP_OUT
Figure 1.
DAC IOUT
DAC IOUT
DRV_OUT
DRV_OUT
AD9956-VCO/PCB. THESE SOCKETS LEFT VACANT
VCO AND LOOP FILTER ONLY POPULATED ON
FOR USER TO POPULATE ON AD9956/PCB
The AD9956 is a highly sophisticated AgileRF synthesizer with
numerous user-programmable functions. See the AD9956 data
sheet for detailed information about the part.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
50Ω
J5
LPF
J4
© 2005 Analog Devices, Inc. All rights reserved.
Evaluation Board for
VCO
LPF
J7
J6
J16
AD9956/PCB
Synthesizer
www.analog.com

Related parts for AD9956-VCO/PCB

AD9956-VCO/PCB Summary of contents

Page 1

... PLL_REF CP_OUT ÷N PLL_OSC VCO AND LOOP FILTER ONLY POPULATED ON AD9956-VCO/PCB. THESE SOCKETS LEFT VACANT FOR USER TO POPULATE ON AD9956/PCB Figure 1. The AD9956 is a highly sophisticated AgileRF synthesizer with numerous user-programmable functions. See the AD9956 data sheet for detailed information about the part. ...

Page 2

... AD9956/PCB TABLE OF CONTENTS Hardware ........................................................................................... 3 System Requirements................................................................... 3 Setup............................................................................................... 3 Software ............................................................................................. 4 Setup............................................................................................... 4 Running and Using the Software................................................ 4 Control Dialog Box ...................................................................... 5 Profile Dialog Box ........................................................................ 6 REVISION HISTORY 1/05—Revision 0: Initial Version Clock Driver Control, Phase-Frequency Detector & Charge Pump Dialog Box ..........................................................................7 DUT Signals Dialog Box ..............................................................8 DUT I/O Dialog Box ....................................................................8 Debug Window ...

Page 3

... RF divider/DDS directly, connect the external clock- ing signal to the DUT RF IN SMA connector, J1. This input leads to the REFCLK/ REFCLK inputs of the AD9956. In many closed-loop applications, the VCO supplies this signal. When using the part in this kind of application, the external signal should be applied to the DUT REF IN connector, J2 ...

Page 4

... Read install.pdf completely and then follow the instruc- tions in this file to install the software on your PC. Figure 2. AD9956/PCB Evaluation Board Software Status Message upon Successful Load RUNNING AND USING THE SOFTWARE To launch the evaluation software: 1. Find the executable, AD9956v.exe, in the following folder: c:\Program Files\ADI\AD9956 Evaluation Software 2 ...

Page 5

... Linear Sweep Use the Linear Sweep section to enable the linear sweep functions of the DDS. See the AD9956 data sheet for a detailed explanation of these modes of operation. Select Enable to turn on the frequency accumulator. If the No Dwell box is not checked, the part is set in ordinary linear sweep mode ...

Page 6

... The next time the flag is read, the bar stops flashing if the flag is cleared. PROFILE DIALOG BOX The DDS section of the AD9956 has eight programmable frequency and phase offset profiles. You can write values for these profiles in the Profile dialog box, shown in Figure 4. ...

Page 7

... MHz. The Pll Lock Detect Ctrl section controls the lock detect functionality of the AD9956. To enable the lock detect signal, select the Lock Detect Enable check box. The lock detect signal can work in two modes. When you select Lock Detect, Logic 1 indicates that the loop has achieved a locked state, and Logic 0 indicates that the loop is unlocked ...

Page 8

... AD9956/PCB DUT SIGNALS DIALOG BOX This dialog box controls the reset, I/O update, and I/O reset signals for the master and slave devices. Click the lock icon between the corresponding Master and Slave buttons to lock the two together. Click Master or Slave Reset, I/O Update, or I/O Reset, to specify the unit that issues the command to both devices ...

Page 9

... DEBUG WINDOW The Debug Window, shown in Figure 9, lets you directly write to any of the internal registers and subsequently read them back. You can also directly toggle the states of any external inputs such as PS0, PS1, or PS2. Figure 9. Debug Window Rev Page AD9956/PCB ...

Page 10

... ORDERING GUIDE Model Description AD9956/PCB Evaluation Board AD9956-VCO/PCB Evaluation Board with 2.4 GHz VCO and Charge Pump Filter ESD CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges ...

Page 11

... NOTES Rev Page AD9956/PCB ...

Page 12

... AD9956/PCB NOTES © 2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. EB05278–0–1/05(0) Rev Page ...

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