1

18

17

16

15

14

2

3

4

13

12

11

10

5

6

7

8

9

RX_CON_1+

RX_CON_1–

TX_CON_2+

TX_CON_2–

CNFG_A1

CNFG_B1

CNFG_B2

CNFG_A2

GND

3

TUSB542

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SLLSER3B – DECEMBER 2015 – REVISED JANUARY 2016

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5 Pin Configuration and Functions

RWQ Package

18 Pins (X2QFN)

Top View

Pin Functions

PIN

I/O

DESCRIPTION

NAME

NO.

VDD18

5

P

1.8 V Power Supply

GND

PAD

G

Reference Ground Thermal Pad. Must connect to GND on the board.

SEL

16

Input

2:1 SS MUX control. See Table 1 for signal path settings.210K

Ω internal pullup resistor.

H: AP SS signals are connected to Type-C position 1 signals.

L: AP SS signals are connected to Type-C position 2 signals

CNFG_A1

1

Tri-level Input

Tri-level configuration input pin A1 (for Ch 1): sets channel 1 (AP to redriver) EQ, DE and OS

configurations. Pin has integrated pull-up and pull-down resistors of 105 k

Ω. Refer to Table 2

for configuration settings.

CNFG_B1

4

Tri-level Input

Tri-level configuration input pin B1 (for Ch 1): sets channel 1 (AP to redriver) EQ, DE and OS

configurations. Pin has integrated pull-up and pull-down resistors of 105 k

Ω. Refer to Table 2

for configuration settings.

CNFG_A2

13

Tri-level Input

Tri-level configuration input pin A2 (for Ch 2): sets channel 2 (redriver to device) EQ, DE and

OS configurations. Pin has integrated pull-up and pull-down resistors of 10 5k

Ω. Refer to

Table 2 for configuration settings.

CNFG_B2

10

Tri-level Input

Tri-level configuration input pin B2 (for Ch 2): sets channel 2 (redriver to device) EQ, DE and

OS configurations. Pin has integrated pull-up and pull-down resistors of 105 k

Ω.refer to

Table 2 for configuration settings.

RX_AP+

18

Diff output

Differential output to Application Processor (AP), 5 Gbps SS positive signal

RX_AP-

17

Diff output

Differential output to AP, 5 Gbps SS negative signal

TX_AP+

15

Diff input

Differential input from AP, 5 Gbps SS positive signal

TX_AP-

14

Diff input

Differential input from AP, 5 Gbps SS negative signal

Rx_Con_1+

2

Diff input

Differential input from Type-C Connector, Position 1, SS positive signal

Rx_Con_1-

3

Diff input

Differential input from Type-C Connector, Position 1, SS negative signal

Tx_Con_1+

6

Diff output

Differential output to Type-C Connector, Position 1, SS positive signal

Tx_Con_1-

7

Diff output

Differential output to Type-C Connector, Position 1, SS negative signal

Rx_Con_2-

8

Diff input

Differential input from Type-C Connector, Position 2, SS negative signal