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AD8151 Arkusz danych(PDF) 1 Page - Analog Devices |
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AD8151 Arkusz danych(HTML) 1 Page - Analog Devices |
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1 / 36 page  REV. 0 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. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a AD8151* One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 2001 FUNCTIONAL BLOCK DIAGRAM CS RE D A WE UPDATE RESET 7 5 SECOND RANK 17 7-BIT LATCH 33 17 DIFFERENTIAL SWITCH MATRIX 17 OUTP OUTN 33 33 INP INN AD8151 FIRST RANK 17 7-BIT LATCH 17 FEATURES Low Cost 33 17, Fully Differential, Nonblocking Array 3.2 Gb/s per Port NRZ Data Rate Wide Power Supply Range: +3.3 V, –3.3 V Low Power 425 mA (Outputs Enabled) 35 mA (Outputs Disabled) LV PECL and LV ECL Compatible CMOS/TTL-Level Control Inputs: 3 V to 5 V Low Jitter No Heat Sinks Required Drives a Backplane Directly Programmable Output Current Optimize Termination Impedance User-Controlled Voltage at the Load Minimize Power Dissipation Individual Output Disable for Busing and Reducing Power Double Row Latch Buffered Inputs Available in 184-Lead LQFP APPLICATIONS High-Speed Serial Backplane Routing to OC-48 with FEC Fiber Optic Network Switching Fiber Channel LVDS 33 17, 3.2 Gb/s Digital Crosspoint Switch *Patent Pending. X stream is a trademark of Analog Devices, Inc. PRODUCT DESCRIPTION AD8151 is a member of the X stream line of products and is a breakthrough in digital switching, offering a large switch array (33 × 17) on very little power, typically less than 1.5 W. Addi- tionally, it operates at data rates in excess of 3.2 Gb/s per port, making it suitable for Sonet OC-48 with 8b/10b Forward Error Correction (FEC). Further, the pricing of the AD8151 makes it affordable enough to be used for lower data rates as well. The AD8151’s flexible supply voltages allow the user to operate with either PECL or ECL data levels and will operate down to 3.3 V for further power reduction. The control interface is CMOS/ TTL compatible (3 V to 5 V). Its fully differential signal path reduces jitter and crosstalk while allowing the use of smaller single-ended voltage swings. The AD8151 is offered in a 184-lead LQFP package that operates over the extended commercial temperature range of 0 °C to 85°C. Figure 1. Eye Pattern, 3.2 Gb/s, PRBS 23 streamª |
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