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TRANSPORT PRODUCTS
VSC8479
9.95 Gbps to 11.3 Gbps 16-bit Transceiver
S P E C I F I C AT I O N S : Continuous Frequency of Operation: 9.95 Gbps to 11.3 Gbps Exceeds SONET Band Jitter Generation Performance (35 mUI) Better than 2X Margin to the OC-192 Jitter Tolerance SONET Mask Excellent Crosstalk Immunity and Asynchronous Tx and Rx Operation 10mV Input Data Sensitivity (differential) OIF 99.102.8 LVDS Compatible Parallel Data Inputs and Outputs F E AT U R E S : 16:1 Mux/Demux Transceiver With Integrated Clock Multiplier Unit, and Clock and Data Recov-ery Unit with Limiting Amplifier 0.13m CMOS Process Technology XFI Output Compliance Mode for XFP Modules Programmable Input Signal Bandwidth Equalization (EQ) - Enhanced Optical Performance - Enhanced XFI Stressed Eye Performance Built-in Self-test Generation and Error Detection: - Industry Standard PRBS Generation and Detection - User Defined Patterns Full Support for 300-Pin MSA Transponder Modules: - Multiple Reference Clock Source Inputs and Selectable Frequencies - Facility and Equipment Loopback Modes - Support for Line Timing Mode with Clock Clean-up - Loss of Lock (LOL) and FIFO Alarm Outputs - Adjustable Loss of Signal (LOS) Alarm Two-wire or SPI Micro-controller Serial Interface Port (selectable) - Programmable Registers for Access to All Control/Status Signals TxRef Clock, RxRef Clock and ExRef Clock Sources - Flexible Reference Clock Routing - Reference Clock "Clean-up" Phase Detector Selectable Duobinary Modulation Pre-Coder Programmable High-speed Input Voltage Offset Adjust High-speed Data Inversion and Low-Speed Bit Order Swap High-speed CML Clock Output with Power Down Mode PB-VSC8479-002 1.8V Single Power Supply with Optional 3.3V LVTTL I/O 1.15 Watt Typical Power -5C Ambient to 90C Case Temperature 17mm x 17mm, 244-Ball, CBGA Package
A P P L I C AT I O N S : XFP Module XFI to Host SERDES Applications 300 Pin MSA Transponder Modules 10GE and Fibre Channel to SFI-4 SERDES Applications SONET/SDH and DWDM Systems
BENEFITS: Proven XFP Module Inter-operability Low Power, Full Featured CMOS Transceiver Single Chip Mux/Demux Solution: Provides Complete Set of 300 Pin MSA Transponder Functions Including all Loopback and Clocking Modes Robust Asynchronous Operation and High Immunity to Crosstalk Multiple Reference Clock Source and Clean up Schemes
VSC8479
9.95 Gbps to 11.3 Gbps 16-bit Transceiver
GENERAL DESCRIPTION: The VSC8479 is a 1:16, 16:1 transceiver with integrated Clock and Data Recovery unit (CDR) and Clock Multiplier Unit (CMU) that provides the most comprehensive solution available in the industry. Continuous frequency of operation spans from 9.953 Gbps to 11.3 Gbps over full temperature range. Targeted for XFP Host ASIC SERDES, 300 pin module and DWDM line card applications, the VSC8479 provides industry leading optimization of power, performance, programmability, price and feature integration. The 1.15 W total power dissipation enables 300 pin MSA module vendors to provide performance and functionality advantages while dropping the overall power dissipation of their existing modules. The VSC8479 is a perfect choice for XFP motherboards with proven inter-operability with all major XFP module vendors. The receiver path has a high sensitivity receiver with a programmable VGA and input bandwidth equalization (EQ) to provide stressed input data eye compensation. No external post amplifier is required for most applications. The high-speed output is swing and pre-emphasis programmable to support a variety laser driver and XFI host ASIC applications. The VSC8479 fully supports all features, functions and clock modes required for 300-pin multi-source agreement (MSA) transponder module full compliance. All loopback modes are supported with multiple line timing clock modes. A highly flexible reference clock source selection and reference clock clean-up support scheme is provided to minimize external circuitry. A selectable two-wire serial or Serial Peripheral Interface (SPI) provides full microcontroller access to all status and control registers, including software read-back capability of all external control input pins. Any combination of discrete pins and serial register status and control can be employed. A highly flexible PRBS and user defined pattern checker and error count provides system analysis and built-in self-testing. Robust cross talk immunity enables the VSC8479 to operate the Tx and Rx paths asynchronously to each other while exceeding SONET level jitter generation and jitter tolerance performance. A high-speed output clock can be optionally enabled for higher performance applications. An adjustable loss of signal (LOS) indicator is integrated into the device enabling optical modulation amplitude monitoring. The power supply scheme provides a high degree of flexibility. The device can operate on a single +1.8V supply with an optional +3.3V I/O supply for 3.3V compliant interfacing. The Tx path and Rx path can be powered down independently. The single chip, small footprint (17 x 17 mm) allows for both cost reduction and board size reduction for price and size aggressive, small form factor module applications. All VSC8479 devices are tested at high-speed to insure the highest performance and quality standards you've come to expect from Vitesse.
VSC8479 BLOCK DIAGRAM:
TXPCLK with Phase Adjust TXMCLK High-Speed Clock* High-Speed Data 16:1 MUX FIFO Alarm FIFO 16 x 16 SFI-4 Phase 1/ XSBI TXPICLK 16 Low-Speed Data
Tx Ref Clock Rx Ref Clock Ex Ref Clock Reference Clk Distribution and Clean Up Support CMU Loopback and BIST
Line Loopback Diagnostic Loopback RXMCLK
Adjustable LOS CDR High-Speed Data Control/Status Signals Mute Controls Invert Controls LOL Alarms External Pin Read Back
EQ VGA
2
1:16 DEMUX
SFI-4 Phase 1/ XSBI
RXPOCLK 16Low-Speed Data
I C / SPI Interface
* With Enable/Disable Two-wire Interface / SPI Port
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
(c)2004 Vitesse Semiconductor Corporation Vitesse, ASIC-Friendly, FibreTimer, TimeStream and Snoop Loop are trademarks of Vitesse Semiconductor Corporation. All other trademarks or registered trademarks mentioned herein are the property of their respective holders. Vitesse Semiconductor Corporation ("Vitesse") retains the right to make changes to its products or specifications to improve performance, reliability or manufacturability. All information in this document, including descriptions of features, functions, performance, technical specifications and availability, is subject to change without notice at any time.
741 Calle Plano Camarillo, CA 93012, USA Tel: +1 805.388.3700 Fax: +1 805.987.5896 www.vitesse.com

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