450 MHz, Triple 16 9 Video Crosspoint Switch Data Sheet AD8176 FEATURES FUNCTIONAL BLOCK DIAGRAM D0 D1 D2 D3 D4 VPOS VNEG VDD DGND Large, triple 16 9 high speed, nonblocking switch array Pin compatible with AD8175 (16 9 switch array) and AD8176 A0 AD8177, AD8178 (16 5 switch arrays) A1 Differential or single-ended operation A2 SERIN Supports sync-on common-mode and sync-on color A3 operating modes SER/PAR 45-BIT SHIFT RGB and HV outputs available for driving monitor directly REGISTER WITH WE 1 SEROUT 5-BIT PARALLEL G = +4 operation (differential input to differential output) LOADING CLK 0 Flexible power supplies: +5 V or 2.5 V 45 CS Logic ground for convenient control interface UPDATE Serial or parallel programming of switch array PARALLEL LATCH RST High impedance output disable allows connection of CMENC 45 multiple devices with minimal loading on output bus 9 Adjustable output CM and black level through external pins DECODE 9 5:16 DECODERS Excellent ac performance Bandwidth: 450 MHz 144 INPUT OUTPUT Slew rate: 1650 V/s RECEIVER BUFFER G = +2 G = +1 Settling time: 4 ns to 1% to support 1600 1200 at 85 Hz 2 2 Low power of 3.5 W R R 2 2 G G Low all hostile crosstalk 2 2 B B 82 dB at 5 MHz H 47 dB at 500 MHz V Wide input common-mode range of 4 V SWITCH MATRIX Reset pin allows disabling of all outputs G = +2 Fully populated 26 26 ball PBGA package (27 mm 27 mm, 1 mm ball pitch) 2 2 R R Convenient grouping of RGB signals for easy routing 2 2 G G 2 2 B B APPLICATIONS H RGB video switching V KVM Professional video VBLK VOCM CMENCON VOCM CMENCOFF Figure 1. GENERAL DESCRIPTION The AD8176 is a high speed, triple 16 9 video crosspoint switch CM and black level can be conveniently set via external pins. matrix. It supports 1600 1200 RGB displays at 85 Hz refresh The outputs can be used single-ended in conjunction with rate, by offering a 450 MHz bandwidth and a slew rate of decoded H and V outputs to drive a monitor directly. 1650 V/s. With 82 dB of crosstalk and 83 dB isolation (at The independent output buffers of the AD8176 can be placed 5 MHz), the AD8176 is useful in many high speed video into a high impedance state to create larger arrays by paralleling applications. crosspoint outputs. Inputs can be paralleled as well. The AD8176 The AD8176 supports two modes of operation: differential-in offers both serial and a parallel programming modes. to differential-out mode with sync-on CM signaling passed The AD8176 is packaged in a fully populated 26 26 ball through the switch and differential-in to differential-out mode PBGA package and is available over the extended industrial with CM signaling removed through the switch. The output temperature range of 40C to +85C. Rev. A Document Feedback 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20072016 Analog Devices, Inc. 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OBSOLETE 16 x RGB CHANNELS ENABLE/DISABLE SET INDIVIDUAL, OR RESET ALL OUTPUTS TO OFF 9 x RGB, HV CHANNELS 06596-001AD8176 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Pin Configuration and Function Descriptions ..............................8 Applications ....................................................................................... 1 Truth Table and Logic Diagram ............................................... 17 Functional Block Diagram .............................................................. 1 Equivalent Circuits ......................................................................... 19 General Description ......................................................................... 1 Typical Performance Characteristics ........................................... 21 Revision History ............................................................................... 2 Theory of Operation ...................................................................... 26 Specifications ..................................................................................... 3 Applications Information .............................................................. 27 Timing Characteristics (Serial Mode) ....................................... 5 Operating Modes ........................................................................ 27 Timing Characteristics (Parallel Mode) .................................... 6 Programming .............................................................................. 28 Absolute Maximum Ratings ............................................................ 7 Differential and Single-Ended Operation ............................... 29 Thermal Resistance ...................................................................... 7 Outline Dimensions ....................................................................... 37 Power Dissipation ......................................................................... 7 Ordering Guide .......................................................................... 37 ESD Caution .................................................................................. 7 REVISION HISTORY 5/16Rev. 0 to Rev. A Changes to General Description Section ...................................... 1 Changes to Off Isolation, Input-Output Parameter, Table 1 ....... 3 Changes to Areas of Crosstalk Section ........................................ 34 Deleted Figure 53 Renumbered Sequentially............................. 37 Changes to Ordering Guide .......................................................... 37 7/07Revision 0: Initial Version Rev. A Page 2 of 37 OBSOLETE