MAX14972 Datasheet, PDF (8/12 Pages) Maxim Integrated Products – Dual SuperSpeed USB 3.0 Equalizer/Redriver

MAX14972
Dual SuperSpeed USB 3.0 Equalizer/Redriver
Pin Description (continued)
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
V_CC for default state.
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.
Functional Diagram
VCC
MAX14972
RX1+
TX1+
RX1-
TX1-
TX2-
RX2-
TX2+
RX2+
CONTROL LOGIC
GND
OS1 OS2 EQ1 EQ2 DE1 DE2 ENRXD CM
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