Datasheet

Driver
50 W
+
-
I
OS
50 W
0Vor3.6V
Data +
Data -
Clk +
Clk -
Parallel
BERT
600,800mV
V Differential
[NoPre-emphasis]
PP
Coax
Coax
Coax
Coax
Coax
Coax
Coax
Coax
SN 75 DP 139
SMA
SMA
SMA
SMA
Avcc
(4)
R
T
R
T
(5)
AVcc
R
T
R
T
Jitter Test
Instrument
(2,3)
TTP 4
TTP 2TTP 1
FR 4 PCBtrace
(1)
&
ACcouplingCaps
FR 4 PCBtrace
RX
+EQ
OUT
RX
+EQ
OUT
SMA
SMA
SMA
SMA
TTP 3
Jitter Test
Instrument
(2,3)
1. TheFR4tracebetween TTP1and TTP2isdesignedtoemulate1-8"ofFR4, ACcouplingcap,connectorandanother1-8"ofFR4. Tracewidth-4mils.
2. AllJitterismeasuredataBERof10
3.Residualjitterreflectsthetotaljittermeasuredat TTP4minusthejittermeasuredat TTP1
4. AVCC=3.3V
5.RT =50 ,
6.JitterdataistakenwithSN75DP139configuredinthefastestslewratesetting(default)
7.Rvsadj=4.02k
8. TheinputsignalfromparallelBERT doesnothaveanypre-emphasis.Refertorecommendedoperatingconditions
-9
Ω
Ω
(8)
(6) (7)
SN75DP139
SLLS977D –APRIL 2009–REVISED JULY 2013 www.ti.com
Figure 18. TMDS Jitter Measurements
Figure 19. TMDS Main Link Short Circuit Output Circuit
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