����������������������������������������������������������������� Maxim Integrated Products 8

MAX14972

Dual SuperSpeed USB 3.0 Equalizer/Redriver

Pin Description (continued)

Functional Diagram

PIN

NAME

FUNCTION

15

OS2

Two-State Transition-Bit Output Amplitude Control, Channel 2. Connect OS2 to GND for default state.

16

DE2

Three-State Transition Bit and Nontransition Bit Output Amplitude Control, Channel 2. Connect DE2 to

17

EQ2

Three-State Input Equalization Control, Channel 2. Leave EQ2 unconnected for default state.

19

RX2+

Noninverting Input, Channel 2. AC-couple RX2+ with a low-ESR 100nF capacitor.

20

RX2-

Inverting Input, Channel 2. AC-couple RX2- with a low-ESR 100nF capacitor.

22

TX1+

Noninverting Output, Channel 1. AC-couple TX1+ with a low-ESR 100nF capacitor.

23

TX1-

Inverting Output, Channel 1. AC-couple TX1- with a low-ESR 100nF capacitor.

—

EP

Exposed Pad. Internally connected to GND. Connect to a large ground plane to maximize thermal

performance. Not intended as an electrical connection point.

CONTROL LOGIC

RX1+

RX1-

TX2-

TX2+

TX1+

TX1-

RX2-

RX2+

OS1 OS2 EQ1 EQ2 DE1 DE2 ENRXD CM

GND

MAX14972