VSC8248 Quad Port 8.5 Gbps to 11.3 Gbps CDR with EDC and KR Output Microsemis new high-performance clock and data recovery (CDR) IC Highlights provides superior signal integrity, speed exibility, programmable output, Broad application support and integrated diagnostics for a wide range of applications. High-performance analog EDC The VSC8248 is a quad channel clock and data recovery (CDR) device Flexible KR output driver with on-chip adaptive electronic dispersion compensation (EDC), programmable input equalization, and KR-compliant output. Applications A versatile CDR and retimer for all 10G Ethernet applications, the Low cost, high port density 10G SFP+ VSC8248 device is compliant with IEEE 802.3ae and IEEE 802.3aq platforms physical layer speci cations, operating at 8.5 Gbps to 11.3 Gbps 40G/100G CFP module designs: 410G, and 1.25 Gbps for legacy 1G Ethernet. Also supported are 8G Fibre 1010G, and 1012G Channel and 10G QDR In niband protocols and rates and related legacy 10G KR and legacy backplane upgrades subrates. The VSC8248s exibility makes it an excellent candidate for upcoming 410G and 1010G CFP module designs. Integrated EDC compensates for signal degradations in both the optical and electrical domains. For optical systems, this includes chromatic dispersion in long-haul single mode ber systems, and modal dispersion in multi-mode ber systems. High-performance FFE-DFE EDC technology compensates for ber signal impairment and PCB- related signal propagation impact. In copper applications, the VSC8248 EDC compensates for intersymbol interference (ISI) caused by signal propagation through interconnections, vias, and stubs in line cards, backplanes, and copper cables. For optimized performance in the optical and electrical domains, the VSC8248 includes an integrated, fully KR-compliant multi-tap output driver, which enables the device to drive VCSEL lasers in low-cost applications, optimize jitter on the optical link, or drive signals across high-loss, low-bandwidth backplanes. All four channels can support the same rate and protocol, or operate independently on a per-channel basis. Integrated BIST functions include pattern generators and error detectors at all supported data rates and client-side and line-side loopbacks. Line Card SFP+ VSC8248 VSC8248 SFP+ FPGA 4 Quad Quad or SFP+ EDC/CDR EDC/CDR ASIC SFP+ 4 10G Backplane or QSFP+ 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. Microsemi does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any other IP rights, whether with regard to such information itself or anything described by such information. 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.VSC8248 Quad Port 8.5 Gbps to 11.3 Gbps CDR with EDC and KR Output Flexibility Wide Range of Support MDIO, two-wire serial master, and two-wire serial slave 8.5G to 11.3G Ethernet interfaces Legacy 1.25G Ethernet, 2G and 4G Fibre Channel, and 2.5G Embedded microcontroller with on-board RAM for reduced and 5G In niband system chip count Compliant with IEEE 802.3aq, IEEE 802.3ae, and SFF-8431 Rx EDC programmable to user-de ned values or adaptive (SFI) electrical speci cations mode operation Supports all SFP+ application codes and copper links Output pre-emphasis and signal programming for optimized Related Products signal integrity VScope input signal quality monitor integrated circuit for Visit www.microsemi.com for information about these related optimal eye opening and lower BER products: Power-on reset initializes default mode independently of the VSC3144 6.5 Gbps or 10.709 Gbps 144 144 Asynchronous serial interface Crosspoint Switch Independent per-channel operation and power-down VSC3316 11.5 Gbps 16 16 Crosspoint Switch and Signal Host-side and line-side loopbacks and BIST Conditioner VSC8484 and VSC8488 10 Gbps LAN/WAN PHY Key Speci cations VSC7985 and VSC7986 10 Gbps VCSEL/DML Drivers 1.8 V and 1.2 V typical core power supplies (1.2 V to 3.3 V TTL VSC7987 10 Gbps Multirate Limiting Post Ampli er supply) 16 mm 16 mm, 225-pin FCBGA package PMD C Management Module Logic Management SoG MUX LDLDLD DC Power 4 10G LDLDLD Rx VSC7985/86 Tx LDLDLD 148-pin DRV combo CFP- Rx CFP LD Compliant Tx Interface VSC8248 Logic Rx SoG DMUX PDLDLD Tx Rx 4 10G 4 10G PDLDLD Rx VSC7978 TIA Tx Tx 4 10G LDPDLD VSC7987 PA LDPDLD CFP Module Mother Board Pluggable Optical Daughter Board CFP Module Reference Design 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 20102016 Microsemi Corporation. All rights reserved. Microsemi and the Microsemi logo are registered trademarks of Microsemi Corporation. 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