VITESSE VSC8479

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 :
1.8V Single Power Supply with Optional 3.3V LVTTL I/O
16:1 Mux/Demux Transceiver With Integrated Clock Multiplier Unit,
and Clock and Data Recov-ery Unit with Limiting Amplifier
1.15 Watt Typical Power
0.13µm 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
-5ºC Ambient to 90ºC 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
TxRef Clock, RxRef Clock and ExRef Clock Sources
- Flexible Reference Clock Routing
- Reference Clock “Clean-up” Phase Detector
Robust Asynchronous Operation and High Immunity to Crosstalk
Selectable Duobinary Modulation Pre-Coder
Multiple Reference Clock Source and Clean up Schemes
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
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
FIFO Alarm
16:1
MUX
High-Speed Clock*
FIFO 16
x 16
SFI-4
Phase 1/
XSBI
High-Speed Data
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
Diagnostic Loopback
RXMCLK
Adjustable LOS
CDR
High-Speed Data
Line Loopback
1:16
DEMUX
EQ
VGA
Control/Status Signals
Mute Controls
Invert Controls
LOL Alarms
External Pin Read Back
SFI-4
Phase 1/
XSBI
RXPOCLK
16Low-Speed Data
2
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 [email protected]
©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