AD8178 Datasheet PDF

Part Number : AD8178

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

Manufacturers : Analog Devices

Pinouts :

AD8178 datasheet

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.

Large, triple 16 × 5 high speed, nonblocking switch array
Pin compatible with the AD8175andAD8176(16 × 9 switch
arrays) and the 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
Low all hostile crosstalk
−82 dB @ 5 MHz
−47 dB @ 500 MHz
Wide input common-mode range of 4 V
Reset pin allows disabling of all outputs
Fully populated 26 × 26 ball PBGA package
(27 mm × 27 mm, 1 mm ball pitch)
Convenient grouping of RGB signals for easy routing

RGB video switching
Professional video

VS= ± 2.5 V at TA= 25°C, G = +4, RL= 100 Ω (each output), VBLK = 0 V, output CM voltage = 0 V, differential I/O mode, unless
otherwise noted.

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AD8178 pdf

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