廬
nLiten BBT3421 Quad Multi-rate Re-Timer
Data Sheet
August, 2002
FN7482
4 Channel Multi-rate Intelligent CMOS
Re-Timer
Features
鈥?4 channels of clock & data recovery and retiming
鈥?Multi-Speed Operation for OC-48, InfiniBand, XAUI,
10GFC-SN4 rate
- 2.488Gbps to 3.187Gbps with half-rate support
鈥?IEEE 802.3ae Compliant
- 10GBASE-LX4 (WWDM)
- Random jitter 2.5ps (typical)
鈥?250mW typical power consumption per channel
鈥?1.8V power supply with 3.3V I/O tolerant
鈥?Drive up to 40鈥?FR-4 traces and 500 meters of MMF fiber
鈥?Single-ended or differential input reference clock
- Data rate/20 for multi-rate data
鈥?Intelligent Retiming
鈥?Deskewing and Channel-to-Channel Alignment
鈥?Clock Compensation
- Tx/Rx Rate Matching via IDLE Insertion/Deletion
- Received Data Aligned to Local Reference Clock for
Transmission
- Accommodate up to 鹵100ppm clock frequency offset
鈥?CML Rx with Signal Detect and Programmable
Transmission Medium Equalization
鈥?CML Tx with Adjustable Pre-emphasis
鈥?Long Run Length (512 bit) frequency lock ideal for
proprietary encoding schemes
鈥?Extensive configuration and status reporting via 802.3
compliant MDC/MDIO serial interface
鈥?MDIO Interface Compliant with IEEE 802.3ae Clause 45
and Clause 22 Frame Formats
鈥?10 x 10mm 144 pin 0.8mm pitch LFBGA package
Applications
鈥?Intelligent Retimer required for 10Gigabit Ethernet
compliance (10GBASE-LX4)
鈥?Support 10Gigabit Fibre Channel
鈥?Support OC-48 Rate
鈥?Support InfiniBand
鈥?Ideal for parallel optics Backplane Extension of up to 40
inches
Benefits
鈥?Industry-leading power performance
鈥?Programmable Receiver Equalization and preemphasis
increase link distance and design flexibility
- Reduced EMI, cross-talk
鈥?Link distances greater than 40鈥?FR-4 traces and two
connectors
鈥?Proven Interoperability with various backplanes, optical
modules and semiconductors
鈥?Ease of testing
- PRBS (both 2
23
-1 and 13458 byte) Built-In Self Tests,
error code output
- JTAG Boundary Scan, Support for Built-In Self Test
鈥?Complete applications collateral
- Evaluation Board
- Applications Note
- Verilog Model; SPICE Model
- High-Speed System Engineering technical support
Get FULL DATASHEET
Line Card
nPower BBT3420
XAUI to XGMII
Transceiver
Backplane
Optical Transponder
XGMII
nPower BBT3420
XAUI to XGMII
Transceiver
XAUI
Up to 40"
XGMII
Custom ASIC
Upper Layer &
MAC Functions
nPower
BBT3421 XAUI
to XAUI
Re-Timer
Optical
Transceiver
Switch Card
XAUI
Up to 40"
Switch
Fabric
XAUI
Up to 40"
nPower
BBT3421 XAUI
to XAUI
Re-Timer
Other Line Cards
FIGURE 1. BBT3421 APPLICATIONS
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright 漏 Intersil Americas Inc. 2004. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.
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