AD8178:  450 MHz, Triple 16 × 5 Video Crosspoint Switch

The AD8178 is a high speed, triple 16 × 5 video crosspoint switch matrix. It supports 1600 × 1200 RGB displays @ 85 Hz refresh rate, by offering a 450 MHz bandwidth and a slew rate of 1650 V/μs. With ...More

AD8178:  450 MHz, Triple 16 × 5 Video Crosspoint Switch

Product Description

The AD8178 is a high speed, triple 16 × 5 video crosspoint switch matrix. It supports 1600 × 1200 RGB displays @ 85 Hz refresh rate, by offering a 450 MHz bandwidth and a slew rate of 1650 V/μs. With −82 dB of crosstalk and −90 dB isolation (@ 5 MHz), the AD8178 is useful in many high speed video applications.

The AD8178 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 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 AD8178 can be placed into a high impedance state to create larger arrays by paralleling crosspoint outputs. Inputs can be paralleled as well. The AD8178 offers both serial and a parallel programming modes.

The AD8178 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.

Applications

  • RGB video switching
  • KVM
  • Professional video

    • Data Sheet, Rev. 0, 7/07

    Features

    • Large, triple 16 × 5 high speed, nonblocking switch array
    • Pin compatible with AD8175, AD8176 (16 × 9 switch arrays) and AD8177 (16 × 5 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: 450 MHz Slew rate: 1650 V/μs Settling time: 4 ns to 1% to support 1600 × 1200 @ 85Hz
    • Low power of 2.3 W

    Diagrams

    AD8178 Diagram
    Functional Block Diagram for AD8178

    Specifications

    Type Triple 16 x 5
    Output Buffer Yes G = 4
    Supply Voltage (V) ±2.5V
    Output Swing (V) ±2V
    Small Signal BW (MHz) 450MHz
    Slew Rate (V/us) 1650
    Cross Talk @ 10 MHz (-dB) 74
    Control Interface Serial/Parallel

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    Part# Type Output Buffer Supply Voltage (V) Output Swing (V) Small Signal BW (MHz) Slew Rate (V/us) Cross Talk @ 10 MHz (-dB) Price* (1000-4999)
    AD8104 32 x 16 Yes G = 1 ±2.5 ±2 600 1,800 72 $177.10
    AD8105 32 x 16 Yes G = 2 ±2.5 ±2 600 1,800 68 $177.10
    AD8106 16 x 5 Yes G = 1 ±5 ±3 390 500 70 $15.13
    AD8107 16 x 5 Yes G = 2 ±5 ±3 260 500 80 $15.13
    AD8108 8 X 8 Yes G = 1 ±5 ±2.5 350 400 76 $18.72
    AD8109 8 X 8 Yes G = 2 ±5 ±3 250 480 83 $18.72
    AD8110 16 x 8 Yes G = 1 ±5 ±3 390 500 70 $32.89
    AD8111 16 x 8 Yes G = 2 ±5 ±3 260 500 80 $32.89
    AD8112 16 x 8 Yes G = 2 ±12 ±10 60 100 83 @ 20 kHz $10.07
    AD8113 16 X 16 Yes G = 2 ±12 ±10 60 100 83 @ 20 kHz $25.25
    AD8114 16 X 16 Yes G = 1 ±5 ±3 225 375 60 $54.64
    AD8115 16 X 16 Yes G = 2 ±5 ±3 200 450 52 $54.64
    AD8116 16 X 16 Yes G = 1 ±5 ±3 200 300 60 $79.95
    AD8117 32 X 32 Yes G = 1 ±2.5 ±2 600 1,800 65 $298.54
    AD8118 32 X 32 Yes G = 2 ±2.5 ±2 600 1,800 70 $298.54
    AD8175 Triple 16 x 9 Yes G = 2 ±2.5 ±2 500 1,800 82 $96.14
    AD8176 Triple 16 x 9 Yes G = 4 ±2.5 ±2 450 1,650 74 $96.14
    AD8177 Triple 16 x 5 Yes G = 2 ±2.5 ±2 500 1,800 82 $60.21
    AD8178 Triple 16 x 5 Yes G = 4 ±2.5 ±2 450 1,650 74 $60.21
    ADG2128 16 x 8 No ±5 ±5 300 n/a 79 dB @ 5 MHz $6.25
    ADV3200 32 X 32 Yes G = 1 ±2.5 ±1.2 300 400 48 dB @ 5 MHz