VSC7142 Datasheet, PDF (1/2 Pages) Vitesse Semiconductor Corporation – Dual Repeater/Retimer for Fibre Channel and Gigabit Ethernet

DATACOM PRODUCTS
VSC7142
VSC7142 Dual Repeater/Retimer for Fibre Channel and Gigabit Ethernet
FEATURES:
Two FibreTimer™ Cells Configurable as:
- Repeaters for Low Latency
- Retimers for True Fibre Channel Compliance
- Provides Design Flexibility by Allowing Mixing and Matching
of the Functions for Design Optimization
Digital Design of the FibreTimers Produce a Device that is
Well Controlled Over Voltage, Process and Temperature
Variations – Provides a More Robust and Reliable Design
Supports Both 1.0625 Gb/s and 2.125 Gb/s Fibre Channel
Data Rates – Dual Mode Provides Flexibility by Having One
Device for New and Legacy Designs
Supports 1.25 Gb/s Data Rates for Gigabit Ethernet Applications
User-Selectable, On-chip Receive Termination at Either 100Ÿ
or 150Ÿ
Speed Independent Tx and Rx Paths Aid in Fibre Channel
Auto-Speed Negotiation
World-class Signal Integrity for Jitter Compliance – Reduces
Debug and Redesign Efforts
Two Digital/Analog Signal Detect Units to Detect the Presence
of Valid Fibre Channel Encoded Serial Data – Improves Signal
Detect Reliability
User Selectable Pre-emphasis on all High-speed Outputs –
Compensates for Deterministic Jitter Due to Long Traces
and Cables
106.25MHz or 125MHz Reference Clock
5V-tolerant LVTTL Inputs – Provides Design Flexibility and
Backward Compatibility
Cable Equalization on all High-speed Inputs – Reliably
Recovers Jittery Signals
Single 2.5V Supply – Reduces Wiring Complexity
64-pin, 10x10mm TQFP Package – Ideal for High Density
Designs
BLOCK DIAGRAM:
I0+
I0−
1
Fibre
Timer0
1
0
0
MUX0
MUX2
0
O0+
O0−
1
Fibre
MUX3
Timer1
0
1
MUX1
O1+
O1−
I1+
I1−
PB-VSC7142-001