
AD8190
Rev. 0 | Page 9 of 24
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
AD8190
EVALUATION
BOARD
SERIAL DATA
ANALYZER
06
12
2-
0
3
1
Figure 9. Test Circuit Diagram for TX Eye Diagram
0.125UI/DIV AT 1.65Gbps
250
mV
/D
IV
06
12
2-
0
20
Figure 10. TX Eye Diagram at TP2, PE = 2 dB
0.125UI/DIV AT 1.65Gbps
250
mV
/D
IV
06
12
2-
0
19
Figure 11. TX Eye Diagram at TP2, PE = 6 dB
0.125UI/DIV AT 1.65Gbps
250
mV
/D
IV
06
12
2-
0
18
Figure 12. TX Eye Diagram at TP3, PE = 2 dB (Cable = 2 m, 30 AWG)
0.125UI/DIV AT 1.65Gbps
250
mV
/D
IV
06
12
2-
0
15
Figure 13. TX Eye Diagram at TP3, PE = 6 dB (Cable = 10 m, 28 AWG)