BCM6020 Broadcom Corporation, BCM6020 Datasheet

BCM6020

Manufacturer Part Number

BCM6020

Description

Manufacturer

Broadcom Corporation

Datasheet

1.BCM6020.pdf (2 pages)

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BROADCOM

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Download datasheet (215Kb)

•

The Broadcom BCM6020 is a single-chip QAM, twisted-pair,

scalable, digital subscriber line (DSL) transceiver that is

optimized for low-cost, low-power, and high-density

applications on both shielded and unshielded telephone wiring.

General

• Supports bit rates to 52 Mbps and baud rates to13 Mbaud

• Less than 1W power consumption

• Integrated carrier and clock recovery loops for ease of use

• Programmable 4–256 QAM constellations

• Single 3.3V supply operation

• On-chip A/D and D/A converters

• On-chip clock generation

• Adjustable upstream and downstream center frequencies

• Extensive power management features

• JTAG test interface

• Small 100-pin PQFP form factor

Transport interfaces

• Complete ATM UTOPIA Level 1 and 2

• Rate matching and cell delineation

• Bit-synchronous or byte-synchronous modes

• Programmable frame formats

• Coded/uncoded payload support

Transceiver

• Transmit notching for amateur radio band compatibility

• On-chip and off-chip RAM interleaving

• Reed-Solomon FEC

• Packet scrambling

• Digital square root Nyquist filters

• x/sin x transmit pre-emphasis

• Enhanced adaptive decision feedback equalizer

F E A T U R E S

BCM6020 SCALABLE DSL TRANSCEIVER

•

BCM6020

Operates up to 52 Mbps fully symmetric.

Supports symmetric and asymmetric services.

Operates on shielded and unshielded distribution cables.

Suitable for CO, HDT, ONU, and CPE applications.

Small size and low power enables high port-densities.

Simple spectrum control through register programming.

Supports frame-based and cell-based transport streams.

Splitter

Central Office Linecard Block Diagram

POTS

Backplane

Interface

S U M M A R Y O F B E N E F I T S

Hybrid

2W/

BPF

AMP

Microcontroller

BCM6020

AGC

Interleave RAM

BPF

Extended

BCM6020

Interleave RAM

Extended

BPF

AGC

Microcontroller

AMP

BPF

Hybrid

2W/

Protocol

ASIC

Splitter

POTS

10BASE-T

RJ-45

Related parts for BCM6020

BCM6020 Summary of contents

Page 1

... BCM6020 SCALABLE DSL TRANSCEIVER The Broadcom BCM6020 is a single-chip QAM, twisted-pair, • scalable, digital subscriber line (DSL) transceiver that is optimized for low-cost, low-power, and high-density applications on both shielded and unshielded telephone wiring. General • • Supports bit rates to 52 Mbps and baud rates to13 Mbaud • ...

Page 2

... Spectral compatibility is assured by virtue of its programmable center frequency and baud rate. With its small footprint, the BCM6020 is ideal for use in NIC, PC card, and Mini PCI CPE modem designs. Robustness (to even severe bursty ingress) is guaranteed through support of on-chip and off-chip ® ...

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