MAX14972 Datasheet, PDF (7/12 Pages) Maxim Integrated Products – Dual SuperSpeed USB 3.0 Equalizer/Redriver

MAX14972
Dual SuperSpeed USB 3.0 Equalizer/Redriver
Pin Configuration
TOP VIEW
18 17 16 15 14 13
RX2+ 19
12 TX2+
RX2- 20
11 TX2-
GND 21
TX1+ 22
MAX14972
10 GND
9 RX1+
TX1- 23
+
N.C. 24
*EP
8 RX1-
7 N.C.
12 3 4 56
TQFN
*CONNECT EXPOSED PAD (EP) TO GND.
Pin Description
PIN
1, 13
2
3
4
5
6, 10, 18, 21
7, 24
8
9
11
12
14
NAME
V_CC
EQ1
DE1
OS1
ENRXD
GND
N.C.
RX1-
RX1+
TX2-
TX2+
CM
FUNCTION
Power-Supply Input. Bypass V_CC to GND with 0.1FF and 2.2FF low-ESR capacitors in parallel as
close as possible to the device.
Three-State Input Equalization Control, Channel 1. Leave EQ1 unconnected for default state.
Three-State Transition Bit and Nontransition Bit Output Amplitude Control, Channel 1. Connect DE1 to
V_CC for default state.
Two-State Transition-Bit Output Amplitude Control, Channel 1. Connect OS1 to GND for default state.
Active-High Enable. Drive ENRXD high or leave unconnected for normal operation. Drive ENRXD low
to enter standby state. ENRXD has a 400kI (typ) pullup resistor to V_CC.
Ground
No Connection. Not internally connected.
Inverting Input, Channel 1. AC-couple RX1- with a low-ESR 100nF capacitor.
Noninverting Input, Channel 1. AC-couple RX1+ with a low-ESR 100nF capacitor.
Inverting Output, Channel 2. AC-couple TX2- with a low-ESR 100nF capacitor.
Noninverting Output, Channel 2. AC-couple TX2+ with a low-ESR 100nF capacitor.
Active-High Compliance Mode Control. Drive CM high to force active state. Drive CM low or leave
unconnected for normal operation. CM has a 400kI (typ) pulldown resistor to GND.
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