VSC3312-01 8.5 Gbps 12x12 Crosspoint Switch The VSC3312-01 is a 12-port 8.5 Gbps asynchronous switch with advanced Applications signal equalization designed for high-speed serial backplanes and cable Wideband signal switching and clean-up interconnect applications. VSC3312-01 switches allow multicast, loopback, Line driver or receiver and recon gurable Input/Output (I/O) capability for great exibility in allocating and routing signals in a broad range of applications. The VSC3312-01 Backplane signal fanout, driver, or receiver includes dual time-constant equalization, which signi cantly reduces jitter Copper cable driver or receiver associated with driving multigigabit signals across backplanes and cables. A PCB signal enhancement fully asynchronous architecture allows any data rate or protocol on any channel without the need for an external reference clock. This gives the VSC3312-01 Speci cations wire-like interoperability in virtually any application that uses binary signaling. The VSC3312-01 can also be used as a buffer that simpli es and enhances 8.5 Gbps non-return-to-zero (NRZ) per- the design of high-speed signal paths by providing signal equalization at both channel data rate inputs and outputs to reduce or reverse signal degradation due to transmission 2.5 V core, 1.8 V, 2.5 V, and 3.3 V high- line effects. speed I/O The VSC3312-01 has a total of 24 ports. Eight are dedicated inputs, eight 3.2 W maximum at 3.3 V, or 2.4 W at 2.5 V, are dedicated outputs, and the remaining eight may be con gured as either or 2 W at 1.8 V inputs or outputs without restriction. This design provides the exibility of using the device as a standard 12x12 crosspoint, or any ratio from 8x16 to 16x8. This unique feature allows full I/O utilization in any application that has less than a 2:1 ratio between inputs and outputs. In many cases, this translates to a signi cant reduction in chip count. Featuring programmable input signal equalization and output pre-emphasis, each with multiple time constants, the VSC3312-01 is also ideal for countering signal degradation over a wide variety of transmission media types and lengths. Typical power consumption for the device is 160 mW per active channel, and unused channels may be deactivated to save the power associated with those ports. The output drivers for the VSC3312-01 also feature a wide supply voltage range (from 1.8 V to 3.3 V) that allows exibility in matching the output swing to application requirements. The VSC3312-01 has a LOS detector with programmable thresholds on every input port. The LOS status can be made to appear at either of two status pins for external use. The LOS signal can also be switched to each of the outputs in concert with the high-speed switching core. LOS forwarding can be enabled for each of the outputs, which will cause the outputs to be squelched in response to a LOS detect at the corresponding input, thereby propagating signal envelopes through the switch. Programming of the VSC3312-01 is through a standard two-wire serial interface. The interface address can be hardwired through static pins or through a proprietary two-pin interface that allows for address selection after power- up. All pin functions such as Con g, ResetB, and Status pin states are also accessible through registers to ensure maximum exibility. Line Cards Backplane Switch Card ASIC VSC3312 ASIC 1 Gbps to 1 Gbps to 8.5 Gbps 8.5 Gbps Lanes Lanes Microsemi makes no warranty, representation, or guarantee regarding the information contained herein or the suitability of its products and services for any particular purpose, nor does Microsemi assume any liability whatsoever arising out of the application or use of any product or circuit. The products sold hereunder and any other products sold by Microsemi have been subject to limited testing and should not be used in conjunction with mission-critical equipment or applications. Any performance speci cations are believed to be reliable but are not veri ed, and Buyer must conduct and complete all performance and other testing of the products, alone and together with, or installed in, any end-products. Buyer shall not rely on any data and performance speci cations or parameters provided by Microsemi. It is the Buyers responsibility to independently determine suitability of any products and to test and verify the same. The information provided by Microsemi hereunder is provided as is, where is and with all faults, and the entire risk associated with such information is entirely with the Buyer. 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Information provided in this document is proprietary to Microsemi, and Microsemi reserves the right to make any changes to the information in this document or to any products and services at any time without notice.VSC3312-01 8.5 Gbps 12x12 Crosspoint Switch Features Related Products 8.5 Gbps NRZ data bandwidth Visit www.microsemi.com for information about other related Fully non-blocking and multicasting switch core with per-pin products. signal inversion capability Multiple time-constant programmable input and output equalization Wide equalization adjustment range Fully asynchronous operation with <1 ns latency Recon gurable I/O capability LOS detection and forwarding Bene ts Transparent support for virtually all data rates and protocols Allows complete exibility in routing and distributing signals Compensates for multiple impairments in a signal path Supports all types of interconnect media: PCB, backplanes, and cable No adjustments based on data rate or reference clock required Customize the I/O to the application OOB forwarding for protocols like SAS and SATA Switch Core 12 12 12 Pre- 12 Inputs 11:0 Equalizer Outputs 11:0 Emphasis Registers Two-Wire Interface or Four-Wire Interface Microsemi Corporation (Nasdaq: MSCC) offers a comprehensive portfolio of semiconductor and system solutions for com- munications, defense and security, aerospace, and industrial markets. Products include high-performance and radiation- hardened analog mixed-signal integrated circuits, FPGAs, SoCs, and ASICs power management products timing and synchronization devices and precise time solutions voice processing devices RF solutions discrete components enter- prise storage and communications solutions, security technologies, and scalable anti-tamper products Ethernet solutions Power-over-Ethernet ICs and midspans custom design capabilities and services. Microsemi is headquartered in Aliso Viejo, California, and has approximately 4,800 employees worldwide. Learn more at www.microsemi.com. Microsemi Corporate Headquarters One Enterprise, Aliso Viejo, CA 92656 USA Within the USA: +1 (800) 713-4113 Outside the USA: +1 (949) 380-6100 20062016 Micr osemi Corporation. All rights reserved. Microsemi and the Microsemi logo are registered trademarks of Microsemi Corporation. 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