NCN3411 - 4-Differential Channel 1:2 Mux/Demux Switch for ...

NCN3411

4-Differential Channel 1:2 Mux/Demux Switch for PCI Express Gen3

The NCN3411 is a 4-Channel differential SPDT switch designed to route PCI Express Gen3 signals. When used in a PCI Express application, the switch can handle up to two PCIe lanes. Due to the ultra-low ON-state capacitance (2 pF typ) and resistance (7.5 W typ), these switches are ideal for switching high frequency data signals up to a signal bit rate of 8 Gbps. This switch pinout is designed to be used in BTX form factor desktop PCs and is available in a space-saving 3.5 x 9 x 0.75 mm WQFN42 package.

Features

? VDD Power Supply from 1.5 V to 2.0 V ? 4 Differential Channels 2:1 MUX/DEMUX ? Compatible with PCIe 3.0 ? Data Rate: Supports 8 Gbps ? Low Crosstalk -30 dB @ 4 GHz ? Low Bit-to-Bit Skew: 5 ps ? Low RON Resistance: 13 W max ? Low CON Capacitance: 2 pF ? Low Supply Current: 200 mA ? Off Isolation: -20 dB @ 4 GHz ? Space Saving Small WQFN-42 Package ? This is a Pb-Free Device

Typical Applications

? Notebook Computer ? Desktop computer ? Server/Storage Area Network

PCIe Slot

PCI Express Controller

A0 +/-

A1 +/- A2 +/- NCN3411

A3 +/-

B0 +/- B1 +/- B2 +/- B3 +/- C0 +/- C1 +/- C2 +/- C3 +/-

Figure 1. Application Schematic

PCIe Slot



MARKING DIAGRAM

1

WQFN42 CASE 510AP

NCN3411 AWLYYWWG

XXXXX = Specific Device Code

A

= Assembly Location

WL = Wafer Lot

YY = Year

WW = Work Week

G

= Pb-Free Package

ORDERING INFORMATION

Device

Package

Shipping

NCN3411MTTWG WQFN42 2000 / Tape & Reel (Pb-Free)

For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.

? Semiconductor Components Industries, LLC, 2011

1

September, 2011 - Rev. 0

Publication Order Number: NCN3411/D

NCN3411

A0+

B0+

A0-

B0-

A1+

B1+

A1-

B1-

C0+

C0-

C1+

C1-

A2+

B2+

A2-

B2-

A3+

B3+

A3-

B3-

C2+

C2-

C3+

C3-

SEL

TRUTH TABLE Function AN to BN AN to CN

Figure 2. NCN3411 Functional Block Diagram (Top View)

SEL L H

2

NCN3411

42 VDD 41 GND 40 VDD 39 GND

GND 1 A0+ 2 A0- 3 GND 4 VDD 5 A1+ 6 A1- 7 VDD 8 SEL 9 GND 10 A2+ 11 A2- 12 VDD 13 GND 14 A3+ 15 A3- 16 GND 17

Exposed Pad on

Underside (Connect to Gnd)

38 B0+ 37 B0- 36 B1+ 35 B1- 34 C0+ 33 C0- 32 C1+ 31 C1- 30 VDD 29 B2+ 28 B2- 27 B3+ 26 B3- 25 C2+ 24 C2- 23 C3+ 22 C3-

VDD 18 GND 19 VDD 20 GND 21

Figure 3. Pin Description (Top View)

3

NCN3411

PIN FUNCTION AND DESCRIPTION

Pin

Pin Name

2

A0+

3

A0-

6

A1+

7

A1-

11

A2+

12

A2-

15

A3+

16

A3-

38

B0+

37

B0-

36

B1+

35

B1-

29

B2+

28

B2-

27

B3+

26

B3-

34

C0+

33

C0-

32

C1+

31

C1-

25

C2+

24

C2-

23

C3+

22

C3-

9

SEL

5, 8, 13, 18, 20, 30, 40, 42

1, 4, 10, 14, 17, 19, 21, 39, 41

Exposed Pad

VDD GND

-

Signal I/0, Channel 0, Port A

Description

Signal I/0, Channel 1, Port A

Signal I/0, Channel 2, Port A

Signal I/0, Channel 3, Port A

Signal I/0, Channel 0, Port B

Signal I/0, Channel 1, Port B

Signal I/0, Channel 2, Port B

Signal I/0, Channel 3, Port B

Signal I/0, Channel 0, Port C

Signal I/0, Channel 1, Port C

Signal I/0, Channel 2, Port C

Signal I/0, Channel 3, Port C

Operational Mode Select (When SEL = 0: A B, When SEL = 1: A C)

DC Supply: 1.5 V to 2.0 V

Power Ground

The exposed pad on the backside of package is internally connected to GND. Externally the pad should also be user-connected to GND.

4

NCN3411

MAXIMUM RATINGS

Parameter

Symbol

Rating

Units

Power Supply Voltage Input/Output Voltage Range of the Switch (AN, BN, CN) Selection Pin Voltages Continuous Current Through One Switch Maximum Junction Temperature (Note 1) Operating Ambient Temperature Storage Temperature Range Thermal Resistance, Junction-to-Air Latch-up Current (Note 2) Human Body Model (HBM) ESD Rating (Note 3)

VDD VIS VSEL Icc TJ TA Tstg RqJA ILU ESD HBM

-0.5 to 2.5 -0.5 to VDD -0.5 to VDD

?120 150 -40 to +85 -65 to +150 75 ?100 7000

VDC VDC VDC mA ?C ?C ?C ?C/W mA

V

Machine Model (MM) ESD Rating (Note 3)

ESD MM

400

V

Moisture Sensitivity (Note 4)

MSL

Level 1

-

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. Power dissipation must be considered to ensure maximum junction temperature (TJ) is not exceeded. 2. Latch up Current Maximum Rating: ?100 mA per JEDEC standard: JESD78. 3. This device series contains ESD protection and passes the following tests:

Human Body Model (HBM) ?7.0 kV per JEDEC standard: JESD22-A114 for all pins. Machine Model (MM) ?400 V per JEDEC standard: JESD22-A115 for all pins. 4. Moisture Sensitivity Level (MSL): 1 per IPC/JEDEC standard: J-STD-020A.

5

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