TUSB1064 datasheet(34/50 Pages) TI2

34 / 50 page

Frequency (GHz)

-60

-55

-50

-45

-40

-35

-30

-25

-20

-15

-10

-5

D009

Length=12in, Width=6mil

Length=16in, Width=6mil

Length=20in, Width=6mil

Length=24in, Width=6mil

Length=4in, Width=4mil

Length=8in, Width=10mil

Length=8in, Width=6mil

SBU1

SBU2

AUXn

AUXp

TUSB1064

SBU2

SBU1

AUXP

AUXN

PD Controller

SBU2

SBU1

1M (+/-5%)

AUXP

AUXN

SRC_DET#

SRC_DET

100nF

DP SINK

3.3V

Make AUX connections as short as

possible to minimize stub effects

DP0

DP1

DP2

DP3

TX1

RX1

RX2

TX2

ML0

ML1

ML2

ML3

TUSB1064

SLLSF48C – MARCH 2018 – REVISED SEPTEMBER 2019

www.ti.com

Product Folder Links: TUSB1064

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The use-case with the AUX-to-SBU switching performed by an external device is shown in Figure 29. In this

case, it is assumed that the PD controller is capable of correcting the polarity inversion of the AUX signal and the

TUSB1064 is provided with the corrected polarity of the AUX signal through its AUXp/AUXn pins. If the

TUSB1064 device configuration is through the I2C Mode, AUX snooping should be disabled by setting

AUX_SNOOP_DISABLE register 0x13[7] = 1'b1. The DisplayPort sink device has to handle the polarity inversion

of the Main Link signals as well as the Main Link lane swapping.

Figure 29. DisplayPort AUX Connections for UFP_D Pin Assignment E with External AUX Switching

9.2.4 PCB Insertion Loss Curves

Figure 30. Insertion Loss of FR4 PCB Traces

TUSB1064 Datasheet(PDF) 34 Page - Texas Instruments

TUSB1064 Datasheet(HTML) 34 Page - Texas Instruments

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