AD8191 datasheet(10/32 Pages) AD

Teilenummer	AD8191

Bauteilbeschribung	4:1 HDMI/DVI Switch with Equalization

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Hersteller	AD [Analog Devices]

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AD8191

Rev. 0 | Page 10 of 32

TA = 27°C, AVCC = 3.3 V, VTTI = 3.3 V, VTTO = 3.3 V, DVCC = 3.3 V, AMUXVCC = 5 V, AVEE = 0 V, DVEE = 0 V, differential input

swing = 1000 mV, TMDS outputs terminated with external 50 Ω resistors to 3.3 V, pattern = PRBS 27 − 1, data rate = 1.65 Gbps, unless

otherwise noted.

REFERENCE EYE DIAGRAM AT TP1

DIGITAL

PATTERN

GENERATOR

SMA COAX CABLE

HDMI CABLE

TP1

TP2

TP3

AD8191

EVALUATION

BOARD

SERIAL DATA

ANALYZER

Figure 9. Test Circuit Diagram for TX Eye Diagrams

0.125UI/DIV AT 1.65Gbps

Figure 10. TX Eye Diagram at TP2, PE = 2 dB

0.125UI/DIV AT 1.65Gbps

Figure 11. TX Eye Diagram at TP2, PE = 6 dB

0.125UI/DIV AT 1.65Gbps

Figure 12. TX Eye Diagram at TP3, PE = 2 dB (Cable = 2 meters, 30 AWG)

0.125UI/DIV AT 1.65Gbps

Figure 13. TX Diagram at TP3, PE = 6 dB (Cable = 10 meters, 28 AWG)

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