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AD9525BCPZ Datasheet(PDF) 1 Page - Analog Devices |
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AD9525BCPZ Datasheet(HTML) 1 Page - Analog Devices |
1 / 48 page Low Jitter Clock Generator with Eight LVPECL Outputs Data Sheet AD9525 Rev. 0 Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2012 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES Integrated ultralow noise synthesizer 8 differential 3.6 GHz LVPECL outputs and 1 LVPECL SYNC output or 2 CMOS SYNC outputs 2 differential reference inputs and 1 single-ended reference input APPLICATIONS LTE and multicarrier GSM base stations Clocking high speed ADCs, DACs ATE and high performance instrumentation 40/100 Gb/sec OTN line side clocking Cable/DOCSIS CMTS clocking Test and measurement FUNCTIONAL BLOCK DIAGRAM REFB PLL DIVIDERS ÷S SPI CONTROL AD9525 REFA REFA REFB SYNC_OUT SYNC_OUT REFC CLKIN CLKIN OUT7 OUT7 OUT6 OUT6 OUT5 OUT5 OUT4 OUT4 OUT3 OUT3 OUT2 OUT2 OUT1 OUT1 OUT0 OUT0 Figure 1. GENERAL DESCRIPTION The AD9525 is designed to support converter clock requirements for long-term evolution (LTE) and multicarrier GSM base station designs. The AD9525 provides a low power, multioutput, clock distribution function with low jitter performance, along with an on-chip PLL that can be used with an external VCO or VCXO. The VCO input and eight LVPECL outputs can operate up to a frequency of 3.6 GHz. All outputs share a common divider that can provide a division of 1 to 6. The AD9525 offers a dedicated output that can be used to provide a programmable signal for resetting or synchronizing a data converter. The output signal is activated by a SPI write. The AD9525 is available in a 48-lead LFCSP and can be operated from a single 3.3 V supply. The external VCXO or VCO can have an operating voltage of up to 5.5 V. The AD9525 operates over the extended industrial temperature range of −40°C to +85°C. |
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