33 17, 1.5 Gbps Digital Crosspoint Switch AD8150 FEATURES FUNCTIONAL BLOCK DIAGRAM INP INN Low cost CS 33 17, fully differential, nonblocking array RE >1.5 Gbps per port NRZ data rate 33 33 Wide power supply range: +5 V, +3.3 V, 3.3 V, 5 V 7 17 D OUTP FIRST SECOND Low power 33 17 RANK RANK DIFFERENTIAL 17 17 SWITCH 400 mA (outputs enabled) 7-BIT 7-BIT MATRIX 5 17 LATCH LATCH A OUTN 30 mA (outputs disabled) PECL and ECL compatible CMOS/TTL-level control inputs: 3 V to 5 V WE AD8150 Low jitter: <50 ps p-p UPDATE No heat sinks required RESET Drives a backplane directly Programmable output current Figure 1. Functional Block Diagram Optimize termination impedance User-controlled voltage at the load 500mV Minimize power dissipation Individual output disable for busing and building Larger arrays Double row latch 100mV/ Buffered inputs DIV Available in 184-lead LQFP APPLICATIONS HD and SD digital video Fiber optic network switching GENERAL DESCRIPTION 500mV AD8150 is a member of the Xstream line of products and is a 100ps/DIV breakthrough in digital switching, offering a large switch array Figure 2. Output Eye Pattern, 1.5 Gbps (33 17) on very little power, typically less than 1.5 W. Additionally, it operates at data rates in excess of 1.5 Gbps per port, making it suitable for HDTV applications. Further, the pricing of the AD8150 makes it affordable enough to be used for SD applications. The AD8150 is also useful for OC-24 optical network switching. The AD8150s 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 AD8150 is offered in a 184-lead LQFP package that operates over the industrial temperature range of 0C to 85C. Rev. A 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. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Specifications subject to change without notice. No license is granted by implication Tel: 781.329.4700 www.analog.com or otherwise under any patent or patent rights of Analog Devices. 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OUTPUT ADDRESS DECODER INPUT DECODERS 01074-002 01074-001AD8150 TABLE OF CONTENTS Specifications..................................................................................... 3 High Speed Data Outputs (OUTyyP, OUTyyN) .................... 23 Absolute Maximum Ratings............................................................ 4 Output Current Set Pin (REF).................................................. 24 Maximum Power Dissipiation .................................................... 4 Power Supplies............................................................................ 25 ESD Caution.................................................................................. 4 Power Dissipation....................................................................... 27 Pin Configuration and Function Descriptions............................. 5 Heat Sinking................................................................................ 28 Typical Performance Characteristics ............................................. 9 Applications..................................................................................... 29 Test Circuit ...................................................................................... 13 AD8150 Input and Output Busing........................................... 29 Control Interface............................................................................. 14 Evaluation Board ............................................................................ 30 Control Interface Truth Tables ................................................. 14 Configuration Programming.................................................... 30 Control Interface Timing Diagrams ........................................ 15 Power Supplies............................................................................ 30 Control Interface Programming Example .............................. 20 Software Installation .................................................................. 30 Control Interface Description................................................... 21 Software Operation .................................................................... 31 Control Pin Description ............................................................ 21 PCB Layout...................................................................................... 32 Control Interface Translators.................................................... 22 Outline Dimensions....................................................................... 42 Circuit Description......................................................................... 23 Ordering Guide .......................................................................... 42 High Speed Data Inputs (INxxP, INxxN)................................ 23 REVISION HISTORY 9/05 Rev. 0 to Rev. A Updated Format..................................................................Universal Change to Absolute Maximum Ratings......................................... 4 Changes to Maximum Power Dissipation Section....................... 4 Change to Figure 3 ........................................................................... 4 Changes to Figure 40...................................................................... 26 Updated Outline Dimensions ....................................................... 42 Changes to Ordering Guide .......................................................... 42 Revision 0: Initial Version Rev. A Page 2 of 44