AD9912/PCBZ Analog Devices Inc, AD9912/PCBZ Datasheet

Eval Board

AD9912/PCBZ

Manufacturer Part Number
AD9912/PCBZ
Description
Eval Board
Manufacturer
Analog Devices Inc
Series
AgileRF™r
Datasheets

Specifications of AD9912/PCBZ

Kit Features
Flexible System Clock I/P Accepts Crystal
Supported Devices
AD9912
Tool / Board Applications
Direct Digital Synthesizer
Development Tool Type
Hardware - Eval/Demo Board
Mcu Supported Families
AD9912
Main Purpose
Timing, Direct Digital Synthesis (DDS)
Embedded
No
Utilized Ic / Part
AD9912
Primary Attributes
14-Bit DAC, 48-Bit Tuning Word Width
Secondary Attributes
1GHz, Graphical User Interface
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
FEATURES
Flexible system clock input accepts crystal, crystal oscillator,
Dedicated pad for mounting crystal or crystal oscillator
DAC output easily accessible via SMA connector
SMA connectors provided for external reconstruction filter
Easy to use Windows graphical user interface
Software control of all AD9912 features
Power supplies that are easily separated
Connection via USB port
Dedicated SMA connectors for CMOS, DAC, and HSTL outputs
Residual phase noise @ 250 MHz
PACKAGE CONTENTS
AD9912 evaluation board
USB cable
CD-ROM with the following contents:
Rev. 0
Evaluation boards are only intended for device evaluation and not for production purposes.
Evaluation boards are supplied “as is” and without warranties of any kind, express, implied, or
statutory including, but not limited to, any implied warranty of merchantability or fitness for a
particular purpose. No license is granted by implication or otherwise under any patents or other
intellectual property by application or use of evaluation boards. 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. Analog Devices reserves the right to change devices or specifications at any time
without notice. Trademarks and registered trademarks are the property of their respective owners.
Evaluation boards are not authorized to be used in life support devices or systems.
or external reference clock
10 Hz offset: −113 dBc/Hz
1 kHz offset: −133 dBc/Hz
100 kHz offset: −153 dBc/Hz
40 MHz offset: −161 dBc/Hz
Evaluation software
Instructions
Data sheet
Schematics
AD9912/PCBZ
CONNTROLLER
CONNECTOR
SWITCHES ARE IMPLEMENTED
USB
USB
CRYSTAL OSCILLATOR
AS 0Ω RESISTORS
ARE NOT INSTALLED
CRYSTAL AND
EVALUATION BOARD BLOCK DIAGRAM
SERIAL
PORT
SYSCLKB
SYSCLK/
AD9912
DAC_OUTB
DAC_OUT/
LOOP_FILTER
Figure 1.
OUT_CMOS
SYSCLK
INPUT
OUT/OUTB
FDBK_INB
FDBK_IN/
DAC OUTPUT
UNFILTERED
RECONSTRUCTION
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
GENERAL DESCRIPTION
The
AD9912 direct digital synthesizer (DDS). It easily connects to a
host computer via a USB interface and allows easy access to all
AD9912 features via the Windows®-based evaluation software
and graphical user interface.
This document provides instructions for the setup and installa-
tion of the board and software and includes a description
of the various software menus and hardware connections.
Additional evaluation board details are available in the AD9912
evaluation board schematics on the included CD-ROM.
This document covers both Revision A and Revision B of the
AD9912 evaluation board. The two versions differ in that
Revision B has a convenient connection for a 1 kΩ pull-down
resistor on the loop filter pin, whereas Revision A does not.
The AD9912/PCBZ operates over an industrial temperature
range, spanning −40°C to +85°C.
LOW-PASS
FILTER
AD9912
SYSTEM
CLOCK
PLL LOOP
FILTER
AD9912 Evaluation Board
evaluation board is an evaluation platform for the
DAC OUTPUT
FILTERED
©2008 Analog Devices, Inc. All rights reserved.
FDBK
IN
OUTB
OUT/
CMOS
OUT
AD9912/PCBZ
www.analog.com

Related parts for AD9912/PCBZ

AD9912/PCBZ Summary of contents

Page 1

... AD9912 evaluation board. The two versions differ in that Revision B has a convenient connection for a 1 kΩ pull-down resistor on the loop filter pin, whereas Revision A does not. The AD9912/PCBZ operates over an industrial temperature range, spanning −40°C to +85°C. EVALUATION BOARD BLOCK DIAGRAM ...

Page 2

... AD9912/PCBZ TABLE OF CONTENTS Features .............................................................................................. 1 Package Contents .............................................................................. 1 General Description ......................................................................... 1 Evaluation Board Block Diagram ................................................... 1 Revision History ............................................................................... 2 Evaluation Board Physical Connections ....................................... 3 Power Connections ...................................................................... 3 Connections to PC ....................................................................... 3 Signal Connections ...................................................................... 3 Using an Oscillator for the System Clock .................................. 4 Using a Crystal for the System Clock ........................................ 4 Using an External Reconstruction Filter ................................... 4 Evaluation Board Software Setup ................................................... 5 Software Installation ...

Page 3

... CMOS driver (default): connect an oscilloscope/ spectrum analyzer to CMOS_OUT (J7). Note that R106 must be installed to connect J7 to the CMOS out on the AD9912. Connect DUT FILTER OUT (J5) to FDBK IN (J6). Note that this step is not necessary if R20 (near J5) and R18 (near FDBK IN/J6) are stuffed. Rev Page AD9912/PCBZ ...

Page 4

... AD9912/PCBZ • HSTL driver: put a 50 Ω terminator on OUTB (J2), and connect OUT (J1 spectrum analyzer. Connect DUT FILTER OUT (J5) to FDBK IN (J6). Note that this step is not necessary if R20 (near J5) and R18 (near FDBK IN/J6) are stuffed. Enable the HSTL driver in the evaluation software. ...

Page 5

... Interactive Block Diagram window. See the Evaluation Software Main Window section for a description of the main window features, or see the Evaluation Software Functional Blocks section for details on the individual blocks of the AD9912. Rev Page AD9912/PCBZ ...

Page 6

... AD9912/PCBZ EVALUATION SOFTWARE MAIN WINDOW The main window of the evaluation software consists of three major areas: the menu bar, the button bar, and the window display area. The window display area is where windows such as the Interactive Block Diagram window appear. Note that the ...

Page 7

... AD9912 to its default power-up state. I/O Update This button toggles the IO_UPDATE pin on the AD9912. Block Diagram This button selects the Interactive Block Diagram window. Debug Window This button selects the Debug window. See the Debug Window section for a description. Rev Page AD9912/PCBZ ...

Page 8

... AD9912/PCBZ EVALUATION SOFTWARE FUNCTIONAL BLOCKS The AD9912 evaluation software is made up of subsections that correspond to the AD9912’s major functional blocks. These subsections are listed in the following sections, and each of these has its own window. The main window is the Interactive Block Diagram window, and from it, the window for each functional block can be accessed by clicking that block ...

Page 9

... C5 C7 9.70pF 4.70pF 1.50pF 310MHz 370MHz 610MHz 9.0pF 20.0pF 23.0pF PHASE 100M FREQUENCY (Hz) Rev Page AD9912/PCBZ LC combination 8.2 pF combination: C10 = 4.7 pF combination 1.5 pF 14.0pF 50.0Ω EQUIVALENT CIRCUIT FOR TRANSFORMER, IMPEDANCE MATCH, AND AD9912 FDBK_IN 200 MAGNITUDE 150 100 50 0 –50 – ...

Page 10

... AD9912/PCBZ DIFFERENTIAL FILTER DESIGN The differential filter advantages include fewer components and a simpler design when the AD9912 is used in an actual design. Note that the 100 Ω differential source impedance is internal to the IOUT/IOUB driver. Also, note that the ac coupling between the IOUT differential pair and the FDBK_IN differential pair is critical ...

Page 11

... PLL and bipolar edge detector. Table 1. Recommended SYSCLK PLL Loop Filter Values SYSCLK Series R Multiplier (R98) 8 (or less) 390 Ω 10 470 Ω kΩ 40 (default) 2.2 kΩ 60 2.7 kΩ Rev Page AD9912/PCBZ Series C Shunt C (C83) (C88 820 390 180 120 ...

Page 12

... AD9912/PCBZ ORDERING INFORMATION ORDERING GUIDE Model Description 1 AD9912/PCBZ Evaluation Board RoHS Compliant Part ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. EB07190-0-1/08(0) ESD CAUTION Rev Page ...

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