AD8178

Obsolete

450 MHz, Triple 16 × 5 Video Crosspoint Switch

Data Sheet (Rev. A) Product Selection Table

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Part Details

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

Documentation

User Guide 1

UG-890: Evaluation Board for the AD8175/AD8176/AD8177/AD8178 Triple Video Crosspoint Switches (Rev.0) 10/27/2015

Obsolete Data Sheet 1

AD8178: 450 MHz, Triple 16 x 5 Video Crosspoint Switch Obsolete Data Sheet (Rev.A) 07/01/2007

This is the most up-to-date revision of the Data Sheet.

Evaluation Kits

Evaluation Board for the AD8175/AD8176/AD8177/AD8178

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Features and Benefits

Full-featured evaluation board for the AD8175/AD8176/AD8177/AD8178
Supports both single-ended and differential inputand output
Supports RGBHV signal
Drives SMA and CAT5 cables
Decoded HV sync outputs available
Single +5 V or dual ±2.5 V operation

Product Details

The AD8175 and AD8176 are high speed, triple 16 × 9 video crosspoint switch matrixes with a gain of 2 and 4, respectively. Both the AD8175 and AD8176 support 1600 × 1200 RGB displays at a 85 Hz refresh rate. The AD8175 has a 500 MHz bandwidth, 1800 V/μs slew rate, −88 dB crosstalk, and −94 dB isolation (at 5 MHz). The AD8176 has a 450 MHz bandwidth, 1650 V/μs slew rate, −82 dB crosstalk, and −90 dB isolation (at 5 MHz).

The AD8177 and AD8178 have the same specifications as the AD8175 and AD8176, respectively, but are 16 × 5 video crosspoint switch matrixes.

The AD8175, AD8176, AD8177, and AD8178 support two modes of operation: differential in to differential out mode with sync on common-mode (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 single ended in conjunction with decoded H and V outputs to drive a monitor directly.

The independent output buffers of the AD8175, AD8176, AD8177, and AD8178 can be placed into a high impedance state to create larger arrays by paralleling the crosspoint outputs. The inputs can also be paralleled. The AD8175, AD8176, AD8177, and AD8178 offer both serial and parallel programming modes.

The AD8175/AD8176/AD8177/AD8178 are packaged in a fully populated, 26 × 16 ball PBGA package and are available over the extended industrial temperature range of −40°C to +85°C.

The user guide UG-890 provides all of the supporting documents for evaluating the AD8175/AD8176/AD8177/AD8178 using the AD8175-EVALZ/AD8176-EVALZ/AD8177-EVALZ/AD8178-EVALZ evaluation board. Additional information is available in the AD8175, AD8176, AD8177, and AD8178 data sheets, which should be consulted in conjunction with UG-890 when working with the evaluation board.

Resources

UG-890: Evaluation Board for the AD8175/AD8176/AD8177/AD8178 Triple Video Crosspoint Switches (Rev.0)
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