Evaluation Board User Guide UG-075 One Technology Way P.O. Box 9106 Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 www.analog.com AD9516-x, AD9517-x, and AD9518-x Evaluation Board FEATURES GENERAL DESCRIPTION Simple power connection using 6 V wall adapter and The AD9516-x, AD9517-x, and AD9518-x are very low noise on-board LDO voltage regulators PLL clock synthesizers featuring an integrated VCO, clock LDOs are easily bypassed for power measurements dividers, and up to 14 outputs. The AD9516 features automatic 8 ac-coupled differential LVPECL SMA connectors holdover and a flexible reference input circuit allowing for very 2 ac-coupled LVPECL differential headers smooth reference clock switching. The AD9516 family also 2 dc-coupled differential LVDS SMA connectors that are features the necessary provisions for an external VCXO. reconfigurable to four CMOS SMA connectors The AD9516 evaluation board is a compact, easy-to-use 2 dc-coupled LVDS differential headers that are platform for evaluating all features of the AD9516. This user reconfigurable to four CMOS connectors guide covers all six versions of the AD9516 family, as well as SMA connectors for the AD9517 and AD9518 families (hereafter referred to as 2 reference inputs AD951x). The AD9516, AD9517, and AD9518 differ only Charge pump output in package size, and the number of outputs. The evaluation Clock distribution input software main window for the AD9517 and AD9518 reflects USB connection to PC fewer outputs, but the operation is identical for all devices. Microsoft Windows-based evaluation software with simple Although the Quick Start Guide to the AD9516 PLL section graphical user interface applies specifically to the AD9516-3, increasing the N (feed- On-board PLL loop filter back) divider and channel divider increases the VCO frequency Easy access to digital I/O and diagnostic signals to the allowable frequency range of other AD9516 versions. via I/O header Status LEDs for diagnostic signals For the AD9516-5, which lacks an internal VCO, certain portions of this document that apply to the internal VCO APPLICATIONS (such as VCO calibration) can be ignored. Clocking of analog-to-digital and digital-to-analog For convenience, detailed information from the AD9516 data converters up to 2.9 GHz sheet has been included here. Use this user guide in conjunction Networking and communications line cards with the AD9516, AD9517, and AD9518 data sheets, as well as Test and measurement equipment additional documentation available at www.analog.com. Wireless base stations, controllers Clock cleanup/jitter attenuation Clock distribution AD9516 EVALUATION BOARD Figure 1. See the last page for an important warning and disclaimers. Rev. 0 Page 1 of 16 08745-001UG-075 Evaluation Board User Guide TABLE OF CONTENTS Features .............................................................................................. 1 REFMON, STATUS, and LD Buttons.........................................8 Applications ....................................................................................... 1 Register W/R Box ..........................................................................9 General Description ......................................................................... 1 SYNC, PD (Power Down), and RESET Buttons .......................9 AD9516 Evaluation Board ............................................................... 1 Reference (R) Divider Window ...................................................9 Revision History ............................................................................... 2 R and N Delay Window ................................................................9 Evaluation Board Hardware ............................................................ 3 Feedback (N) Divider Window ...................................................9 Power and PC Connections ........................................................ 3 Phase Frequency Detector (PFD) Window ............................ 10 Signal Connections ...................................................................... 3 Charge Pump Window .............................................................. 10 Bypassing the Wall Power Supply ............................................... 3 VCO Calibration Window ........................................................ 10 Bypassing the PLL (Clock Distribution Only) ............................. 3 Channel Divider Window ......................................................... 11 Using an External VCXO ............................................................ 3 LVPECL Output Driver Window ............................................. 11 Evaluation Board Software .............................................................. 4 LVDS/CMOS Output Driver Window .................................... 12 Software Installation .................................................................... 4 LVDS/CMOS Output Delay Window ..................................... 12 Running the Software .................................................................. 4 Debug Window ........................................................................... 12 Quick Start Guide to the AD9516 PLL .......................................... 5 Evaluation Software Menu Items.................................................. 13 Evaluation Software Components .................................................. 7 Menu Bar ..................................................................................... 13 Main Window ............................................................................... 7 AD9516 PLL Loop Filter ............................................................... 14 PLL Reference Input Window .................................................... 8 Loop Filter for Clock Cleanup .................................................. 15 PLL Configuration Window ....................................................... 8 ESD Caution................................................................................ 16 REVISION HISTORY 1/10Revision 0: Initial Version Rev. 0 Page 2 of 16