BCM6020 SCALABLE TRANSCEIVER FEATURES Broadcom BCM6020 single-chi

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BCM6020 SCALABLE TRANSCEIVER FEATURES Broadcom BCM6020 single-chi

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BCM6020
BCM6020 SCALABLE TRANSCEIVER
FEATURES Broadcom BCM6020 single-chip QAM, twisted-pair, SUMMARY BENEFITS
Operates Mbps fully symmetric. Supports symmetric asymmetric services. Operates shielded unshielded distribution cables. Suitable HDT, ONU, applications. Small size power enables high port-densities. Simple spectrum control through register programming. Supports frame-based cell-based transport streams.
scalable, digital subscriber line (DSL) transceiver that optimized low-cost, low-power, high-density applications both shielded unshielded telephone wiring. General Supports rates Mbps baud rates to13 Mbaud Less than power consumption Integrated carrier clock recovery loops ease Programmable 4-256 constellations Single 3.3V supply operation On-chip converters On-chip clock generation Adjustable upstream downstream center frequencies Extensive power management features JTAG test interface Small 100-pin PQFP form factor Transport interfaces Complete AUTOPIA Level Rate matching cell delineation Bit-synchronous byte-synchronous modes Programmable frame formats Coded/uncoded payload support Transceiver Transmit notching amateur radio band compatibility On-chip off-chip interleaving Reed-Solomon Packet scrambling Digital square root Nyquist filters x/sin transmit pre-emphasis Enhanced adaptive decision feedback equalizer
Central Office Linecard Block Diagram
Extended Interleave
Backplane Interface
BCM6020
Hybrid
POTS Splitter
Microcontroller
Extended Interleave
POTS Splitter
Hybrid
BCM6020
Protocol ASIC
10BASE-T
RJ-45
Microcontroller
OVERVIEW
Interleave Packet Format Logic ReedSolomon Encoder/ Interleaver
TRANSMITTER
Nyquist Filter Interpolation Filter Programmable Rate
Nyquist Filter
Interpolation Filter
RECEIVER
ReedSolomon Decoder/ De-Interleaver Adaptive DecisionFeedback Equalizer Nyquist Filter Programmable Rate
Packet Format Logic
Nyquist Filter
MBus/SPI Interface
Interleave
JTAG
PLL/Clock Generation
Acquisition/Tracking Loops
BCM6020 first single-chip VDSLsolution offer support unshielded telephone distribution cable through on-chip advanced digital filtering, precoding, equalization techniques. BCM6020 offers DSLsystem vendors unmatched capability provision high-speed data transmission services twisted-pair copper wire supporting applications such Internet access, extensions,work-at-home, remote office, switched digital video. Rates Mbps supported fully-symmetric. BCM6020 also configured support full-speed ADSL G.Lite data rates. BCM6020has been designed application where cost, power, compact size paramount. especially suited frame-based applications such Ethernet transport bridging over long-reach telephone-grade wiring. Spectral compatibility assured virtue programmable center frequency baud rate. With small footprint, BCM6020 ideal NIC, card, Mini modem designs. Robustness even severe bursty ingress) guaranteed through support on-chip off-chip
interleaving memory. This feature useful industrial applications where such ingress problem. BCM6020 also supports UTOPIA Level Level interfaces, easily connected industry-standard Asegmentation reassembly engines. This facilitates delivery multiple virtual circuits traffic classes. flexible frame structure enables transport encoded uncoded traffic, embedded operations channel protocol supported. Automatic rate-adaptive software available support symmetric asymmetric links. BCM6020 employs enhanced adaptive decision feedback equalizer. Because equalizer length programmable, effectively combats intersymbol interference over wide range symbol rates.The BCM6020 also ideal connections SOHO routers integrated access devices. Supporting multi-megabitsymmetric data rates excess HDSL, SDSL, G.Lite, represents next step broadband access small businesses.
Broadcom®, pulse logo, Connecting everything® trademarks Broadcom Corporation and/ subsidiaries United States certain other countries. other trademarks mentioned property their respective owners.
BROADCOM CORPORATION 16215 Alton Parkway, P.O. 57013 Irvine, California 92619-7013
2004 BROADCOM CORPORATION. rights reserved. 6020-PB09-R 08/27/04
Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com

BCM6020 SCALABLE TRANSCEIVER FEATURES Broadcom BCM6020 single-chi

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