VSC8479-01
General Description
The VSC8479-01 is the industry’s first comprehensive 10G-EPON burst mode transceiver solution with a fast-locking, integrated clock
and data recovery unit (CDR) and clock multiplier unit (CMU). The VSC8479-01 device delivers industry-leading power, performance,
programmability, feature integration, and cost-effective packaging ideal for even the most price-sensitive applications, such as PON and
cost-down designs.
Targeted for 300-pin multisource agreement (MSA) modules and DWDM line card applications, the VSC8479-01 is also suitable for
XFP/SFP+ motherboards with its proven interoperability with all major module vendors. Burst mode capability supports 10G-EPON
optical line terminal (OLT) units, and continuous mode operation supports optical network units (ONUs). The VSC8479-01 is the first 10G
transceiver to meet and exceed the 10G-EPON IEEE P802.3av/D3.0 Draft standard for burst mode performance.
The Rx path features a high-sensitivity receiver with programmable VGA and input bandwidth equalization (EQ) for stressed input data
eye compensation, and can acquire 10G-EPON data in under 100 ns. An external post amplifier is not required for most applications.
The high-speed output is swing- and pre-emphasis-programmable to support an array of laser driver and XFI/SFI host ASIC applications.
The VSC8479-01 device supports all features, functions, and clock modes required for 300-pin MSA transponder module full
compliance. All loopback modes are supported with multiple line timing clock modes. Low power dissipation enables 300-pin MSA
module vendors to provide performance and functionality advantages, while dropping the overall power dissipation in existing modules.
Highly flexible reference clock source selection and reference clock clean-up support schemes minimize external circuitry. A selectable
two-wire serial or serial peripheral interface (SPI) provides full microcontroller access to status and control registers, including software
read-back capability of external control input pins. Any combination of discrete pins and serial register status and control can be
employed. A selectable PRBS or user-defined pattern generator and error counter provides built-in self-testing and system analysis.
Robust crosstalk immunity enables the Tx and Rx paths to be operated asynchronously, while exceeding SONET jitter generation and
jitter tolerance requirements. The high-speed output clock can optionally be configured for higher performance applications. An
adjustable loss of signal (LOS) indicator is built-in for optical modulation amplitude monitoring. A flexible power supply scheme is
designed to operate on a single 1.8 V supply, with an optional 3.3 V I/O supply for 3.3 V compliant interfacing. The Tx and Rx paths can
also be powered down independently.
The compact 12 mm × 12 mm footprint and feature integration into a single device enables the VSC8479-01 to achieve impressive cost
and board size reductions required for price- and size-aggressive small form factor module applications.
VSC8479-01 Block Diagram
© 2009 by Vitesse Semiconductor Corporation. VPPD-02344 Revision 1.1. Vitesse Semiconductor Corporation ("Vitesse") retains the right to make changes to its products or
specifications. As such, all information in this document, including descriptions of features, functions, performance, technical specifications and availability, is subject to change
without notice at any time, and Vitesse assumes no responsibility for use of any information herein. Nothing contained herein conveys to the purchaser of microelectronic devices
any license under the patent or any other intellectual property rights of any manufacturer. Vitesse®, and numerous other trademarks, are trademarks of Vitesse in the United States
and/or other jurisdictions. Other trademarks used herein that are not the property of Vitesse are the property of their respective owners. While Vitesse products support IEC 60825,
use of Vitesse products does not ensure compliance to IEC 60825. Buyers are responsible for ensuring compliance to IEC 60825. Buyers must fully indemnify Vitesse for any
damages resulting from non-compliance to IEC 60825.
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
