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AD8176ABPZ Fiches technique(PDF) 1 Page - Analog Devices |
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AD8176ABPZ Fiches technique(HTML) 1 Page - Analog Devices |
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1 / 32 page  475 MHz, Triple 16 × 9 Video Crosspoint Switch Preliminary Technical Data AD8176 Rev. PrA Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. 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 ©2007 Analog Devices, Inc. All rights reserved. FEATURES Large, triple 16 x 9 high speed, non-blocking switch array Differential or single-ended operation Supports sync-on common-mode and sync-on color operating modes RGB and HV outputs available for driving monitor directly G = +4 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 Bandwidth: 475 MHz Slew rate: 1800 V/μs Settling time TBD ns to 1% to support 1600 × 1200 @ 85Hz Low power of 3.5 W Low all-hostile crosstalk −68 dB @ 5 MHz −40 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 = +2 OUTPUT BUFFER G = +1 9 144 45 VBLK VOCM_CMENCON VOCM_CMENCOFF R G B R G B CMENC SERIN RST UPDATE CS CLK WE SER/PAR D0 D1 D2 D3 D4 VPOS VNEG VDD DGND SEROUT H B G R V H B G R V 45 A0 A1 A2 A3 AD8176 1 0 SWITCH MATRIX G = +2 45-BIT SHIFT REGISTER WITH 5-BIT PARALLEL LOADING DECODE 9 × 5:16 DECODERS PARALLEL LATCH Figure 1. AD8176 GENERAL DESCRIPTION The AD8176 is a high speed, triple 16 × 9 video crosspoint switch matrix. It supports 1600 × 1200 RGB displays @ 85 Hz refresh rate, by offering a 475 MHz bandwidth and a slew rate of 1800 V/μs. With −68 dB of crosstalk and TBD dB isolation (@ 5 MHz), the AD8176 is useful in many high speed video applications. The AD176 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 can be conveniently set via external pins. The outputs can be used single-ended in conjunction with decoded H and V outputs to drive a monitor directly. The independent output buffers of the AD8176 can be placed into a high impedance state to create larger arrays by paralleling crosspoint outputs. Inputs can be paralleled as well. The AD8176 offers both serial and a parallel programming modes. The AD8176 is packaged in a fully-populated 26 × 26 ball PBGA package and is available over the extended industrial temperature range of −40°C to +85°C. |
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