Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsInterface ICsInterface IC - multiplexers, demultiplexers WQFN 42

Top View

RUA

Package

GND

Pad

38 22

GND

A1-

A1+

A2+

A2-

GND

VDD

GND

A0-

A3-

GND

A0+

GND

A3+

VDD

GND

C0+

B3-

C2+

VDD

B2+

B3+

C0-

C1+

C2-

C3+

C1-

VDD

GND

C3-

SEL

GND

B0+

B0-

B1+

B1-

B2-

38 22

HD3SS3412

www.ti.com

SLAS828B –FEBRUARY 2012–REVISED NOVEMBER 2013

4-Channel High-Performance Differential Switch

Check for Samples: HD3SS3412

FEATURES

• Compatible With Multiple Interface Standards

Operating up to 12Gbps Including PCI Express

Gen III and USB 3.0

• Wide –3dB Differential BW of over 8GHz

• Excellent Dynamic Characteristics (at 4GHz)

– Crosstalk = –35dB

– Off Isolation = –19 dB

– Insertion Loss = –1.5 dB

– Return Loss = –11 dB

• Bidirectional "MUX/De-MUX" Type Differential

Switch

• VDD Operating Range 3.3 V ±10%

• Small 3.5-mm x 9.0-mm, 42-Pin TQFN Package

• Common Industry Standard Pinout

• Supports XAUI and SGMII

APPLICATIONS

• Desktop and Notebook PCs

• Server and Storage Area Networks

• PCI Express Backplanes

Figure 1. HD3SS3412 Pinout and Switch Flow

Through Routing

• Shared I/O Ports

DESCRIPTION

The HD3SS3412 is a high-speed passive switch capable of switching four differential channels, including

applications such as two full PCI Express x1 lanes from one source to one of two target locations in a PC/server

application. With its bidirectional capability the HD3SS3412 also supports applications that allow connections

between one target and two source devices, such as a shared peripheral between two platforms. The

HD3SS3412 has a single control line (SEL pin) which can be used to control the signal path between Port A and

either Port B or Port C.

The HD3SS3412 is offered in an industry standard 42-pin QFN package available in a common footprint shared

by several other vendors. The device is specified to operate from a single supply voltage of 3.3 V over the full

temperature range of 0°C to 70ºC.

The HD3SS3412 is a generic 4-CH high speed MUX/de-MUX type of switch that can be used for routing high-

speed signals between two different locations on a circuit board. Although it was designed specifically to address

PCI Express Gen III applications, the HD3SS3412 will also support several other high-speed data protocols with

a differential amplitude of <1800 mVpp and a common mode voltage of <2.0 V, as with USB 3.0 and DisplayPort

1.2. The device’s one select input (SEL) pin can easily be controlled by an available GPIO pin within a system or

from a micro-controller.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (20 pages)

PAGE 1
HD3SS3412 www.ti.
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HD3SS3412 SLAS828B – FEBRUARY 2012 – REVISED NOVEMBER 2013 www.ti.com ORDERING INFORMATION (1) (1) PART NUMBER PART MARKING PACKAGE HD3SS3412RUAR HD3SS3412 42-pin RUA Reel (Large) HD3SS3412RUAT HD3SS3412 42-pin RUA Reel (Small) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com Table 1.
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HD3SS3412 www.ti.com SLAS828B – FEBRUARY 2012 – REVISED NOVEMBER 2013 PIN FUNCTIONS (continued) PIN I/O DESCRIPTION NAME NO.
PAGE 4
HD3SS3412 SLAS828B – FEBRUARY 2012 – REVISED NOVEMBER 2013 www.ti.
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HD3SS3412 www.ti.com SLAS828B – FEBRUARY 2012 – REVISED NOVEMBER 2013 RECOMMENDED OPERATING CONDITIONS Typical values for all parameters are at VDD = 3.3 V and TA = 25°C. (Temperature limits are specified by design) MIN TYP 3.3 MAX UNIT VDD Supply voltage 3.0 3.6 V VIH Input high voltage (SEL pin) 2.0 VDD V VIL Input low voltage (SEL pin) –0.1 0.8 V VI/O_Diff Differential voltage (differential pins) Switch I/O diff voltage 0 1.
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HD3SS3412 SLAS828B – FEBRUARY 2012 – REVISED NOVEMBER 2013 www.ti.com TEST TIMING DIAGRAMS Select to Switch Output On (TON) and Off (TOFF) 50% SEL 90% VOUT 10% Toff Ton Figure 2.
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HD3SS3412 www.ti.com SLAS828B – FEBRUARY 2012 – REVISED NOVEMBER 2013 TYPICAL PERFORMANCE PLOTS 0 m1 5 m2 m3 m1 freq=300.0kHz freq=300.0kHz dB(SDD21)=-0.491 m4 -2 -5 m2 freq= 2.514GHz dB(SDD21)=-1.221 -6 -8 dB(SDD11) -4 dB(SDD21) m5 freq= 329.0kHz dB(SDD11)=-28.545 0 m3 freq= 3.985GHz dB(SDD21)=-1.536 -10 -12 -14 -15 m7 freq= 3.985GHz dB(SDD11)=-11.177 -20 -25 m5 -30 2E10 1E10 1E9 1E8 1E7 1E6 2E10 1E10 1E9 1E8 1E7 1E6 m4 freq= 8.331GHz dB(SDD21)=-2.
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HD3SS3412 SLAS828B – FEBRUARY 2012 – REVISED NOVEMBER 2013 www.ti.com TYPICAL PERFORMANCE PLOTS (continued) Figure 9. 10Gbps Source Eye Diagram at A: VID = 800 mVpp; 27–1 PRBS; VCM= 0 V A 1.4 Inches Rogers Microstrip 1.7 Inches Rogers Microstrip 7 10Gbps PRBS 2 - 1 Vi=0.8Vpp ; Vcm =0V Oscilloscope Figure 10.
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HD3SS3412 www.ti.com SLAS828B – FEBRUARY 2012 – REVISED NOVEMBER 2013 TYPICAL PERFORMANCE PLOTS (continued) Figure 11. 10Gbps Output Eye Diagram at A: VID = 800 mVpp; 27–1 PRBS; VCM= 0V; VDD= 3.
PAGE 10
HD3SS3412 SLAS828B – FEBRUARY 2012 – REVISED NOVEMBER 2013 www.ti.
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HD3SS3412 www.ti.com SLAS828B – FEBRUARY 2012 – REVISED NOVEMBER 2013 APPLICATION INFORMATION AC Coupling Caps Many interfaces require AC coupling between the transmitter and receiver. The 0402 capacitors are the preferred option to provide AC coupling, and the 0603 size capacitors also work. The 0805 size capacitors and C-packs should be avoided. When placing AC coupling capacitors symmetric placement is best. A capacitor value of 0.1 µF is best and the value should be match for the ± signal pair.
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HD3SS3412 SLAS828B – FEBRUARY 2012 – REVISED NOVEMBER 2013 www.ti.com Figure 14.
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HD3SS3412 www.ti.com SLAS828B – FEBRUARY 2012 – REVISED NOVEMBER 2013 REVISION HISTORY NOTE: Page numbers of current version may differ from previous versions. Changes from Original (February 2012 ) to Revision A Page • Changed Differential BW Feature bullet from "7.5GHZ" to "8GHz" ...................................................................................... 1 • Changed Dynamic Characteristics Feature sub-bullet from "Isolation" to "Off Isolation" ............................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant HD3SS3412RUAR WQFN RUA 42 3000 330.0 16.4 3.8 9.3 1.0 8.0 16.0 Q1 HD3SS3412RUAT WQFN RUA 42 250 180.0 16.4 3.8 9.3 1.0 8.0 16.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) HD3SS3412RUAR WQFN RUA 42 3000 367.0 367.0 38.0 HD3SS3412RUAT WQFN RUA 42 250 210.0 185.0 35.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.