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| PHYSICAL LAYER PRODUCTS VSC8142, 8145, 8147 2.5G Multi-rate SONET/SDH Transceiver Family S P E C I F I C AT I O N S : VSC8142 Rates: OC-48/12/3, FEC, GbE, Fibre Channel and Other Various Data Rates Power Dissipation: 700mW Selectable Reference Clock Frequency (78MHz or 155MHz) Supply Voltage: 2.5V or Optional 2.5V/3.3V 23mm x 23mm, 208 BGA Package 16-bit LVPECL Parallel Interface Operating Temperature Ranges: -40C to +85C Ambient, 0C to 70C Ambient F E AT U R E S : OC-48/-12/-3, FEC, GbE, Fibre Channel and Other Various Data Rates Integrated Clock Recovery and Clock Multiplier Units Wide Ranging PLLs with Bypass Capabilities Low-speed Bit Order Swap (MSB/LSB) On-board FIFO with Auto-reset Function High-speed Clock Output Power-down Option LOS Detect with Auto-lock to Reference Clock Facility, Equipment, and Split Loopback Modes VSC8145 Rates: OC-48/-12/-3, FEC, GbE, Fibre Channel and Other Various Data Rates Power Dissipation: 800mW Selectable Reference Clock Frequency (155MHz or 622MHz) Supply Voltage: 2.5V 21mm x 21mm, 156 BGA Package 4-bit LVDS Parallel Interface Operating Temperature Ranges: -40C to +85C Ambient, 0C to 70C Ambient VSC8147 0.18_ CMOS Technology Rates: OC-48, FEC A P P L I C AT I O N S : SONET/SDH Systems DWDM Systems Optical Crossconnects Optical Test Equipment Power Dissipation: 800mW Supply Voltage: 2.5V 14mm x 14mm, 100-pin PQFP Package 4-bit LVDS Parallel Interface Operating Temperature Ranges: -40C to +85C Ambient, 0C to 70C Ambient PB-VSC8142,45,47-001 VSC8142, 8145, 8147 2.5G Multi-rate SONET/SDH Transceiver Family GENERAL DESCRIPTION: The VSC8142, VSC8145 and VSC8147 are extended multi-rate transceivers with integrated Clock Recovery Unit (CRU) and Clock Multiplier Unit (CMU) for use in SONET/SDH, DWDM, and other optical transport systems. The devices perform all required serialization and deserialization functions for OC-48, OC12, OC-3, FEC, Gigabit Ethernet, Fibre Channel and FDDI/Fast Ethernet data rates. The integrated CRU Phase Locked Loop (PLL) recovers the highspeed clock from the input Non-Return to Zero (NRZ) data signal. The integrated CMU PLL multiplies a low-speed reference clock to provide the high-speed serial line clock for internal logic and output retiming. Both CRU and CMU can be bypassed to accommodate rates not supported by the PLLs. The parallel interface incorporates an on-board FIFO with auto-reset to eliminating interfacetiming issues. The devices support serial looptiming as well as Facility, Equipment, and Split loopback modes. The VSC8142, VSC8145 and VSC8147 exceed the Telecordia and ITU-T standards for jitter generation, tolerance and transfer providing ample design margin. The typical 800mW power dissipation, along with the thermally-enhance packages, eliminates the need for external heatsinks and allow the devices to be used in diverse operating environments. All device are available in commercial and industrial temperature ranges. BENEFITS: Full SONET/SDH Jitter Compliance: - Low Jitter Generation: less than 5mUI (typical) - High Jitter Tolerance: exceeds 2x the SONET mask Wide-ranging PLLs that not only Provide Support for the Standard SONET/SDH Rates, but also for: - Fibre Channel, 2xFibre Channel - Gigabit Ethernet - FEC - FDDI - Fast Ethernet Integrated CRU and CMU can be Bypassed if an External CDR is Required, (e.g, the All-Rate/Adaptive VSC8123 CDR) The Order of the MSB and LSB on the Low-speed Interfaces can be Reversed, Giving the Designer Increased Flexibility When Laying Out the Board On-board FIFO Auto-Reset Function Eliminates the Need to use an External Logic Loss of Signal Detection on High-speed Data Inputs for Robust Line Monitoring Support Automatic Lock to Reference Clock on LOS Detection Provides Continuous Clocking for Upstream Devices Integrated High-speed and Low-speed Test Capabilities Provide System Diagnostic Support BLOCK DIAGRAM: RSDI DEMUX CRU RDO(0:3) RCLK4 RefClk TSDO MUX FIFO TDI(0:3) TCLK41 TSCLKO CMU TCLK40 RefClk For more information on Vitesse products, visit the Vitesse web site at www.vitesse.com or contact Vitesse Sales at (800) VITESSE or sales@vitesse.com 741 Calle Plano Camarillo, CA 93012, USA Tel: +1 805.388.3700 Fax: +1 805.987.5896 www.vitesse.com (c)2003 Vitesse Semiconductor Corporation |
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