Datasheet

Differential
AUXInput
Differential
AUXOutput
AUXInput
2.2V
1.8V
0V
0V
t
PHL(AUXCO)
t
PLH(AUXCO)
AUX
Input
+ or -
AUX
Output
+ or -
0V
0V
t
PHL(AUXC1)
t
PLH(AUXC1)
3.6V
3.6V
1.8V
1.8V
DisplayPort Link Pins
ELECTRICAL CHARACTERISTICS
SN75DP122A
SLLS939 – NOVEMBER 2008 ............................................................................................................................................................................................ www.ti.com
Figure 8. Auxiliary Channel Delay Measurement (CAD = LOW)
Figure 9. Auxiliary Channel Delay Measurement (CAD = HIGH)
The SN75DP122A is designed to support DisplayPort ’ s high speed differential main link through the DisplayPort
port. The main link I/O of the SN75DP122A are designed to track the magnitude and frequency characteristics of
the input waveform and replicate them on the output. A feature has also been incorporated in the SN75DP122A
to increase the either increase of decrease the output amplitude via the resistor connected between the DPVADJ
pin and ground.
over recommended operating conditions (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Δ V
I/O(2)
V
ID
= 200 mV, DPV
adj
= 6.5 k Ω 0 30 60 mV
Δ V
I/O(3)
V
ID
= 300 mV, DPV
adj
= 6.5 k Ω – 24 11 36 mV
Difference between input and output) voltages
(V
OD
– V
ID
)
Δ V
I/O(4)
V
ID
= 400 mV, DPV
adj
= 6.5 k Ω – 45 – 15 15 mV
Δ V
I/O(6)
V
ID
= 600 mV, DPV
adj
= 6.5 k Ω – 87 – 47 – 22 mV
R
INT
Input termination impedance 45 50 55 Ω
V
Iterm
Input termination voltage 0 2 V
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Product Folder Link(s): SN75DP122A