BCM93740
PRODUCT
®
Brief
O F
B E N E F I T S
BCM93740 ADVANCED 3D SET-TOP BOX DEVELOPMENT PLATFORM
B C M 9 3 7 4 0
F E AT U R E S
S U M M A R Y
Advanced Set-Top Box Front
•
BCM3250DOCSIS/EuroDOCSIS/DAVICEnd,
including
cable
modems
• Dual 256 QAM variable symbol rate receivers supporting
ITU-T J.83 Annex A/B/C
• QPSK out-of-band (OOB) Receiver and QPSK/16 QAM
upstream burst modulator
• DOCSIS™/EuroDOCSIS 1.1 MAC supporting Quality of
Service (QoS)
• DAVIC 1.2/1.5 MAC
•
Highly integrated front-end and back-end results in a
•
Triple CMOS tuner architecture allows for
analog channels.
cost-effective advanced set-top box solution
simultaneous web browsing, video and personal video
recording (PVR)
•
MPEG-2 encoding fully supports watch and record on
•
Supports dual standard definition decoding or HDTV
•
Supports high definition (HD) PVR
•
PCI architecture allows the use of low cost PC
•
DOCSIS/EuroDOCSIS 1.1 cable modem QoS enables
•
Support for DOCSIS/EuroDOCSIS 1.1, DAVIC
applications to support VoIP and video conferencing
1.2/1.5, and DCII enable deployment in virtually all
major markets worldwide
today’s demanding set-top box operating systems,
applications, and cable modem traffic
•
•
•
•
•
Schematics and Gerber files
Bill of materials (BOM)
Data sheets and user manual
Software source code
Applications support
Dual Standard Definition/High Definition
•
BCM7030Graphics Subsystem
Video/3D
•
•
•
•
•
•
ATSC-compliant all format MP@HL MPEG2 video decoder
Broadcom’s advanced 3D graphics engine
Dolby
®
AC-3/MUSICAM
®
NTSC analog video decoder
NTSC/PAL/HD video encoder
PCI and local bus interfaces
decoding (all formats)
peripherals
•
• 256 QAM demodulator, upstream burst modulator
•
BCM7041
dual
MPEG2 encoder
•
Triple Broadcom CMOS tuners
•
High-performance 300 MIPS RISC R5000 class
microprocessor
•
VoIP module supporting up to two lines of voice data
•
Peripheral devices include: HPNA 1/2, IEEE1394,
POD interface with PCMCIA connector, Ethernet,
BCM3125 QAMLink
®
transceiver
•
Single high-performance RISC processor can support
•
Reference design includes:
•
V.90 Softmodem
Software device drivers supporting multiple operating
systems
BCM93740 Advanced 3D Set-Top Box Development Platform with VoIP Module
B C M 9 3 7 4 0
O V E R V I E W
V.90
Codec
POD
CA
Smart Card
BCM4413
HPNA
Ethernet
VoIP
Module
BCM7041
Dual MPEG2 Encoder
CMOS
Tuner
Diplex
Filter
R5000 CPU
300 MIPS
1394 I/F
Local Bus
USB I/F
ROM
Flash
I/O
IDE
Controller
SDRAM
Serial/
Parallel Ports
Audio Input
Hard Disk
Drive
BCM3250
Universal Front-end
PA
DOCSIS/
EuroDOCSIS MAC
DAVIC 1.2/1.5 MAC
Dual QAM Demod
OOB Demod
Upstream Burst Mod
PCI
Bus
BCM7030
Advanced Dual SD/
HD Video
Transport/Decoder
3D Graphics
Subsystem
Analog
Audio Out
Video Out
PCI Bus
PCI
Expansion
Connector
CMOS
Tuner
CMOS
Tuner
BCM3125
QAMLink Transceiver
The Broadcom
BCM93740
is an advanced set-top box
development platform supporting high definition television
(HDTV), dual standard definition decoding and broadband cable
modem internet access. It is a highly integrated, cost-effective
design built on the latest generation of Broadcom silicon and
software offering low risk and quick time-to-market for the next
generation of interactive set-top boxes.
The triple tuner architecture allows for web browsing, video and
Personal Video Recording (PVR) on a separate channel. Time
shifting is also simultaneously supported on the channel being
viewed. The dual MPEG-2 encoder allows full support of watch
and record on 2 analog channels. Also included is support of high
definition (HD) PVR.
The core chip set on the
BCM93740
includes the BCM3250
QAMLink
®
Advanced Set-Top Box Single-Chip Front End with
DOCSIS™/EuroDOCSIS/DAVIC modems, the BCM7030
Advanced High Definition Video/3D Graphics Subsystem, and a
high-performance MIPS R5000™ class processor. The BCM3125
supplies the additional QAM demodulator and upstream burst
modulator. The BCM7041 dual MPEG-2 encoder provides the real-
time encoding for analog PVR.
The BCM3250 is a complete front-end advanced set-top box
solution providing dual 256-QAM receivers, an out-of-band QPSK
receiver and a QPSK/16-QAM upstream burst modulator. All
major physical layer standards are supported allowing set-tops
based on the
BCM93740
design to be deployed worldwide. The
device includes a complete DOCSIS/EuroDOCSIS 1.1 MAC
(including QoS) and DAVIC 1.2/1.5 MAC for broadband
Broadcom
®
, the pulse logo,
QAMLink
®
, and
Connecting everything
®
are trademarks of
Broadcom Corporation and/or its subsidiaries in the United States and certain other countries.
All other trademarks are the property of their respective owners.
interactive services.
The BCM7030 is a device that cost-effectively supports the
requirements of television and set-top box systems that require high
definition, multiple stream standard definition video decoding with
the capability of simultaneous high definition and standard
definition outputs.
Features also include studio-quality text for presenting standard
Windows
®
fonts on a standard or high definition television and a
high-performance 3D graphics engine for applications such as
gaming and e-commerce.
The
BCM93740
also includes a high-performance MIPS
®
RISC
processor supporting middleware, graphics, applications, and
cable modem traffic. The single processor design eliminates the
need for multiple processors in the set-top, substantially reducing
system cost.
The
BCM93740
contains a number of peripherals required for
next-generation set-top boxes. Some of these include home
phoneline networking (HPNA 1/2) for streaming of data and video
throughout the home, a VoIP module supporting 2 lines of voice, an
IEEE1394 connector for connecting to digital consumer electronic
devices, hard disk drive support for digital video recording (DVR),
and a POD interface for external conditional access. In addition, a
low-cost V.90 softmodem is included for alternative low data-rate
connections.
The
BCM93740
supports industry standard operating systems,
middleware, and APIs. Driver source code for these are provided
as part of the reference design.
®
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2002 by BROADCOM CORPORATION. All rights reserved.
93740-PB02-R 11.20.02
Phone: 949-450-8700
FAX: 949-450-8710
Email: info@broadcom.com
Web: www.broadcom.com
Linux开发
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
