HMC905LP3E v01.0414 6 GHz LOW NOISE PROGRAMMABLEDIVIDER (N = 1 to 4)Pin Description (Continued) 4 Pin Number Function Description Interface Schematic 4 T Divider Negative Output, Open Drain. T M 10 IOUTN Typically 50 Ohms connected to Vcc. M S - S S - S R R O Divider Positive Output, Open Drain. O T 11 IOUTP Typically 50 Ohms connected to Vcc. T C C E E T T E E S & D Application Note: The HMC905LP3E is a high performance RF divider. Such dividers are high gain devices with internal feedback. The S & D R device will oscil ate if used with AC coupled RF inputs and if no RF input is applied. Normal y, if the RF input signal R E is removed the device should be disabled, or it should be placed in divide by 1 mode. The device is stable in divide E ID by one mode with no RF input. The device will oscil ate in divide 2, 3, or 4 modes with no RF input. In general, very ID IV small RF input levels will stop all oscil ations. At the minimum rated RF input sensitivity level or higher, no oscil ations or spurious signals exist and excel ent low noise performance is achieved. For input frequency lower than 400 MHz, IV square wave input signal is recommended. Y D For single ended applications, apply the signal on the positive input RFinp and terminate the unused output with 50 Y D C ohms. C N N E E U U Q Q E E R R F F Info F rmoatr p ion rfiurcne is , d hed ebly ivAe n r al y a og D n evd t ice o p s is bla eli c eve o ed t rd o b e e ras: H ccuratite tiatne M d reli iac bl reo . w Ho av wev e C er, n o o For price, delivery, and to place orders: Analog Devices, Inc., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rporation, 20 Alpha Road, Chelmsford, MA 01824 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 Phone: 978-250-3343 Fax: 978-250-3373 O rights of third parties that may result from its use. Specifications subject to change without notice. No P rd hone e r O : 7 n 81- -3li 2n 9 e a -47 t w 0 w 0 • O w rd .h e it r o t niltie n .c e ao t m license is granted by implication or otherwise under any patent or patent rights of Analog Devices. www.analog.com 4 - 8 Application Support: Pho Trademarks and registered trademarks are the property of their respective owners. ne: 978-250-33 A 4 p 3 o plica r a tio p n S p u s p @ po h rt itt : P ite ho . n c e o : 1m -800-ANALOG-D
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