PDF《500 MHz, Triple 16 ? 9》

500 MHz, Triple

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9 Video Crosspoint Switch Data Sheet AD8175 Rev.

B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No licenseisgrantedbyimplicationor otherwiseunderanypatentorpatentrightsofAnalogDevices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ?2007C2011 Analog Devices, Inc. All rights reserved. FEATURES High channel count, triple

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9 high speed, non-blocking switch array Differential or single-ended operation Supports sync-on common-mode and sync-on color operating modes Decoded HV sync outputs available G = +2 operation (differential input to differential output) Flexible power supplies: +5 V or ±2.5 V Logic ground for convenient control interface Serial or parallel programming of switch array High impedance output disable allows connection of multiple devices with minimal loading on output bus Adjustable output CM and black level through external pins Excellent ac performance (to support

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1200 @

85 Hz) Bandwidth:

500 MHz Slew rate:

1800 V/?s Settling time:

4 ns to 1% Low power of 3.5 W Low all-hostile crosstalk ?88 dB @

5 MHz ?46 dB @

500 MHz Wide input common-mode range of

4 V Reset pin allows disabling of all outputs Fully populated

26 x

26 ball PBGA package (27 mm x

27 mm,

1 mm ball pitch) Convenient grouping of RGB signals for easy routing APPLICATIONS RGB video switching KVM Professional video FUNCTIONAL BLOCK DIAGRAM

2 2

2 2

2 2

2 2

2 2

2 2 INPUT RECEIVER G = +1 OUTPUT BUFFER G = +1

9 144 SET INDIVIDUAL, OR RESET ALL OUTPUTS TO OFF ENABLE/DISABLE

45 VBLK VOCM_CMENCON VOCM_CMENCOFF R G B R G B

16 x RGB CHANNELS CMENC SERIN RST UPDATE CS CLK WE SER/PAR D0 D1 D2 D3 D4 VPOS VNEG VDD DGND SEROUT

9 x RGB, HV CHANNELS H B G R V H B G R V

45 A0 A1 A2 A3 AD8175 06478-001

1 0 SWITCH MATRIX G = +2 45-BIT SHIFT REGISTER WITH 5-BIT PARALLEL LOADING DECODE

9 * 5:16 DECODERS PARALLEL LATCH Figure 1. GENERAL DESCRIPTION The AD8175 is a high speed, triple

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9 video crosspoint switch matrix. It supports

1600 *

1200 RGB displays @

85 Hz refresh rate, by offering a

500 MHz bandwidth and a slew rate of

1800 V/?s. With ?88 dB of crosstalk and ?94 dB isolation (@

5 MHz), the AD8175 is useful in many high speed video applications. The AD8175 supports two modes of operation: differential-in to differential-out mode with sync-on CM signaling passed through the switch and differential-in to differential-out mode with CM signaling removed through the switch. The output CM and black level can be conveniently set via external pins. The independent output buffers of the AD8175 can be placed into a high impedance state to create larger arrays by paralleling crosspoint outputs. Inputs can be paralleled as well. The AD8175 offers both serial and parallel programming modes. The AD8175 is packaged in a fully-populated

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26 ball PBGA package and is available over the extended industrial temperature range of ?40°C to +85°C. AD8175 Data Sheet Rev. B | Page

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40 TABLE OF CONTENTS Features

1 Applications.1 Functional Block Diagram

1 General Description.1 Revision History

2 Specifications.3 Timing Characteristics (Serial Mode)5 Timing Characteristics (Parallel Mode)6 Absolute Maximum Ratings.7 Thermal Resistance.7 Power Dissipation.7 ESD Caution.7 Pin Configuration and Function Descriptions.8 Truth Table and Logic Diagram