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AD8191A
Rev. 0 | Page 9 of 28
TYPICAL PERFORMANCE CHARACTERISTICS
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
AD8191A
EVALUATION
BOARD
SERIAL DATA
ANALYZER
SMA COAX CABLE
HDMI CABLE
TP1
TP2
TP3
0
701
3-
0
04
Figure 4. Test Circuit Diagram for Rx Eye Diagram
0.125UI/DIV AT 1.65Gbps
250
mV
/D
IV
07
01
3-
0
05
Figure 5. Rx Eye Diagram at TP2 (Cable = 2 meters, 30 AWG)
0.125UI/DIV AT 1.65Gbps
250
mV
/D
IV
07
01
3-
0
06
Figure 6. Rx Eye Diagram at TP2 (Cable = 20 meters, 24 AWG)
0.125UI/DIV AT 1.65Gbps
250
mV
/D
IV
07
01
3-
0
07
Figure 7. Rx Eye Diagram at TP3, EQ = 6 dB (Cable = 2 meters, 30 AWG)
0.125UI/DIV AT 1.65Gbps
250
mV
/D
IV
07
01
3-
0
08
Figure 8. Rx Eye Diagram at TP3, EQ = 12 dB (Cable = 20 meters, 24 AWG)