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SN75DP122RTQT Datasheet(PDF) 10 Page - Texas Instruments

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Part # SN75DP122RTQT
Description  DisplayPort 1:2 Switch With Integrated TMDS Translator
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

SN75DP122RTQT Datasheet(HTML) 10 Page - Texas Instruments

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DisplayPort Auxiliary Pins
ELECTRICAL CHARACTERISTICS
SWITCHING CHARACTERISTICS
3.3V
10 pF
0.5 pF
AUX+
AUX-
50 W
50 W
100 W
SN75DP122
CAD=0
AUX
+ or -
3.3 V
3.3 V
10 pF
50 pF
2kW
100kW
SN75DP122
CAD=1
SN75DP122
SLLS892A – FEBRUARY 2008 – REVISED NOVEMBER 2008......................................................................................................................................... www.ti.com
The SN75DP122 is designed to support the bidirectional auxiliary signals through the DisplayPort port in both a
differential (DisplayPort) mode and an I2C (DVI, HDMI) mode. The performance of the Auxiliary bus is optimized
based on the status of the CAD_SINK pin.
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP MAX
UNIT
VPass1
Maximum passthrough voltage (CAD=1)
VDD = 4.5 V, VI = 5 V, IO = 100 µA
2.4
3.6
V
IOZ
Output current from unselected output
VDD = 5.25 V, VO = 0 V to 3.6 V, VI = 0 V
–5
5
µA
DC bias = 1 V, AC = 1.4 Vp-p, F = 100 kHz,
CIO(off)
I/O capacitance when in low power
9
12
pF
CAD = High
DC bias = 1 V, AC = 1.4 Vp-p, F = 100 kHz,
CIO(on)
I/O capacitance when in normal operation
18
25
pF
CAD = Low
rON(C0)
On resistance
VDD = 4.5 V, VI = 0 V or 3.6 V, IO = 5 mA, CAD = Low
5
10
ΔrON
On resistance
VDD = 4.5 V, VI = 0 V or 2 V, IO = 5 mA, CAD = Low
1
5
rON(C1)
On resistance
VDD = 4.5 V, VI = 0.4 V , IO = 3 mA , CAD = High
10
18
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tsk(AUX)
Intra-pair skew
VID = 400 mV, VIC = 2 V
40
80
ps
IL(AUX)
Single Line Insertion Loss
VID = 500 mV, VIC = 2 V, F = 1 MHz, CAD = Low
0.4
dB
tPLH(AUXC0)
Propagation delay time, low to high
CAD = Low, F = 1 MHz
3
ns
tPHL(AUXC0)
Propagation delay time, high to low
CAD = Low, F = 1 MHz
3
ns
tPLH(AUXC1)
Propagation delay time, low to high
CAD = High, F = 100 kHz
3
ns
tPHL(AUXC1)
Propagation delay time, high to low
CAD = High, F = 100 kHz
3
ns
Figure 5. Auxiliary Channel Test Circuit (CAD = LOW)
Figure 6. Auxiliary Channel Test Circuit (CAD = HIGH)
10
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Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): SN75DP122


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