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EK1HMC7044LP10B User Guide UG-826 Evaluating the HMC7044 Dual Loop Clock Jitter Cleaner PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 | Page 1 of 10
FEATURES
Simple power connection using USB connection and on-board LDO voltage regulators LDOs can be bypassed for power measurements AC-coupled differential SMA connectors SMA connectors for 2 reference Inputs 6 clock outputs
1 VCXO output
Microsoft Windows®–based evaluation software with simple graphical user interface On-board PLL loop filter Easy access to digital input/output and diagnostic signals via input/output header (4 GPIOs) Status LEDs for diagnostic signals USB computer interface EVALUATION KIT CONTENTS EV3HMC7044LP10B evaluation board USB interface board and USB cable EK1HMC7044LP10B user guide GENERAL DESCRIPTION This user guide describe the hardware and software of the HMC7044 evaluation kit. The evaluation board schematic and printed circuit board (PCB) layout artwork can be found on the EK1HMC7044LP10B product page at www.analog.com. The HMC7044 meets the requirements of multicarrier GSM and LTE base station designs and offers a wide range of clock management and distribution features to simplify baseband and radio card clock tree designs. The high performance dual-loop core of the HMC7044 enables the base station designer to attenuate the incoming jitter of a primary system reference clock, such as a CPRI source, with the help of the narrow-band configured first PLL loop, which disciplines an external VCXO, and to generate the low phase noise, high frequency clocks with the wider-band second PLL to drive data converter sample clock inputs. The EV3HMC7044LP10B evaluation board is a compact, easy to use platform for evaluating all the features of the HMC7044. A 122.88 MHz VCXO is mounted on the evaluation board to provide a complete solution. All inputs and outputs are configured as differential on the evaluation board. Full specifications on the HMC7044 are available in the product data sheet, which should be consulted in conjunction with this user guide when working with the evaluation board. EVALUATION BOARD PHOTOGRAPH 13041-001 Figure 1.
UG-826 EK1HMC7044LP10B User Guide Rev. 0 | Page 2 of 10 TABLE OF CONTENTS Using the Software to Control the Functional Blocks of the
REVISION HISTORY
9/15—Revision 0: Initial Version
connections to the EV3HMC7044LP10B evaluation board. Remove all jumpers (JP2 and JP3).
- Install the HMC7044 evaluation software before
privileges are required for the installation.
- Connect a 5 V supply voltage to Test Point TP38 of the
- Connect the USB interface board to the evaluation board,
- Connect the USB cable to the USB interface and the PC.
- The Found New Hardware Wizard automatically appears
software automatically and then click Next.
- The Found New Hardware Wizard may appear twice
running the HMC7044 board software.
- Connect a signal generator to the CLKIN0_RFSYNC_P
signal generator is sufficient.
- Connect an oscilloscope, spectrum analyzer, or other
on all unused differential output pairs. which is useful for measuring HMC7044 power consumption. EK1HMC7044LP10B product page at www.analog.com.
- Remove the on-board LDOs (U2 and U4).
- Populate R12 (to isolate the SPI interface board current
consumption from the HMC7044). on the 3.3 V main header (TP15). connected to TP15 of the evaluation board. LDO of the VCXO supply, VCC_VCXO. Figure 2. HMC7044 Evaluation Kit Setup
major source of unwanted spurs. differential 100 Ω resistor must be populated on the board. Figure 21. Output Termination Selection
UG-826 EK1HMC7044LP10B User Guide Rev. 0 | Page 10 of 10 QUICK START GUIDE TO THE HMC7044 The HMC7044 can be initialized from SPI settings. To load the provided configuration file, do the following: 1. Follow the instructions provided in the Evaluation Board Software Setup section. 2. Connect a signal generator to the CLKIN0_RFSYNC_P SMA Connector J11. By default, the reference inputs on the evaluation board are ac-coupled. Terminate the CLKIN0_ RFSYNC_N SMA Connector J10 with a 50 Ω termination. An amplitude setting of 6 dBm from a signal generator is sufficient, and the frequency must be 122.88 MHz. 3. Connect a 5 V supply voltage to Test Point TP38 of the evaluation board. 4. Provided with the installer is a setup file named HMC7044_ 983MHz_122p88MHz_VCXO_DoublerON.py, located in the Configuration Files directory. Load this configuration file from the File menu in the main software window. 5. Click Restart. 6. Connect an oscilloscope, spectrum analyzer, or other lab equipment to any output of the CLKOUTx_P or CLKOUTx_N SMA connectors. Place a 50 Ω termination on all unused differential output pairs. ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality. Legal Terms and Conditions 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. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc. (“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term “Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board. Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby submits to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed. ©2015 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the prop erty of their respective owners. UG13041-0-9/15(0)