Table 5-1. Pin Functions (continued)

PIN

I/O

DESCRIPTION

NAME

NO.

DE2

3

I, CMOS

Sets the output de-emphasis for Channel 2. 3-state input with integrated pull-up and pull-

down resistors.

DE2 = Low = 0 dB

DE2 = Mid = -3.5 dB

DE2 = High = -6.2 dB

OS2

4

I, CMOS

Sets the output swing (differential voltage amplitude) for Channel 2. 2-state input with an

integrated pull down resistor.

OS2 = Low = 0.9 mV

OS2 = High = 1.1 mV

EN_RXD

5

I, CMOS

Enable. The device has a 660-kΩ pulldown resistor. Device is active when EN_RXD = High.

Drive actively high or install a pullup resistor (recommend 4.7 KΩ) for normal operation.

Does reset state machine.

RSV

14

I, CMOS

Reserved. Can be left as no-connect.

VCC

1, 13

P

Positive power supply. Power supply is 3.3 V.

GND

10, 21, PAD

G

Ground. PAD must be connected to Ground. Pins 10, 21 can be connected to Ground or left

unconnected.

NC

6, 7, 18, 24

—

No connection. These pins can be tied to any desired voltages including connecting them to

GND.

TUSB522P

SLLSEV9E – JULY 2016 – REVISED NOVEMBER 2023

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