BCM3118B Broadcom Corporation, BCM3118B Datasheet

BCM3118B

Manufacturer Part Number

BCM3118B

Description

Manufacturer

Broadcom Corporation

Datasheet

1.BCM3118B.pdf (2 pages)

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B C M 3 1 1 8 B

•

Downstream QAM receiver for international

applications

Integrated QAMLink receiver with Forward Error

Correction (FEC)

• 1-7 MBaud variable symbol rate receiver

• Supports variable channelization

• Supports 4, 16, 32, 64, 128 and 256-QAM

• Digital demodulator, Nyquist filters, tracking loops,

• Digital derotator for wideband carrier phase tracking

DVB/DAVIC-compliant FEC decoder

• Reed-Solomon (N,K) = 204,188: t=8

• Convolutional detinterleaver, I=1-12 with internal

Integrated 10-bit analog-to-digital converter

On-chip generation of all clock and control signals

JTAG test interface

100-pin PQFP Package

DOCSIS/EuroDOCSIS 1.1/1.0

C or SPI-compatible microcontroller interface

and 20-tap adaptive decision feedback equalizer

RAM, I=204 with external RAM

B C M 3 1 1 8 B

Interactive Set-Top Box with DOCSIS and Watch and Record Dual Video Channels

Out-of-Band

Video 1

Video 2

F E A T U R E S

Q A M L I N K

BCM3118B

BCM3250

Set-Top Box

Single-Chip

Advanced

Front End

PRODUCT

D V B / D AV I C

•

Fully integrated solution enables less-complex,

low-cost cable modems and cable-TV set-top boxes

Significantly increases channel capacity

Variable data rates enable systems to adapt to

channels encoded at different data rates

Integrated A/D converter reduces system

manufacturing costs and complexity

A universal chip solution that supports DVB, DAVIC,

ITU-T J.83/Annex A and Annex C, IEEE 802.14-based

systems

Digital adaptive equalizers ensure robust performance

in the presence of multipath reflections

S U M M A R Y

BCM3118B

Video 1

Video 2

PCI

Brief

Video/Graphics

High Definition

BCM7030

Subsystem

CPU

O F

R E C E I V E R

B E N E F I T S

Audio Out

Video Out

Related parts for BCM3118B

BCM3118B Summary of contents

Page 1

... Digital adaptive equalizers ensure robust performance in the presence of multipath reflections Video 1 BCM3250 Advanced Single-Chip Set-Top Box Front End PCI BCM3118B Video Video Out BCM7030 High Definition Video/Graphics Subsystem Audio Out ...

Page 2

... Reed-Solomon FEC, and derandomizer. The final error-corrected output is delivered in an MPEG-2 transport format. The BCM3118B can be used as a stand-alone chip or with Broadcom's BCM3250 for a complete watch and record solution with EuroDOCSIS. Compliant with the ITU-T J83/Annex A and Annex C, DVB/DAVIC and the IEEE802 ...

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