bcm93740 Broadcom Corp., bcm93740 Datasheet - Page 2

• Manufacturer Part Number: bcm93740
• Description: Advanced 3d Set-top Box Development Platform
• Manufacturer: Broadcom Corp.

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
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
Broadcom Corporation and/or its subsidiaries in the United States and certain other countries.
All other trademarks are the property of their respective owners.
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
®
, the pulse logo, QAMLink
®
Advanced Set-Top Box Single-Chip Front End with
®
, and Connecting everything
®
Diplex
Filter
B C M 9 3 7 4 0
CMOS
CMOS
CMOS
Tuner
Tuner
Tuner
PA
Dual MPEG2 Encoder
Upstream Burst Mod
QAMLink Transceiver
Universal Front-end
BCM3250
DAVIC 1.2/1.5 MAC
EuroDOCSIS MAC
Dual QAM Demod
®
are trademarks of
BCM7041
OOB Demod
BCM3125
DOCSIS/
Smart Card
POD
Bus
CA
PCI
BCM7030
Advanced Dual SD/
Transport/Decoder
3D Graphics
O V E R V I E W
Subsystem
R5000 CPU
HD Video
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
high-performance 3D graphics engine for applications such as
gaming and e-commerce.
The BCM93740 also includes a high-performance MIPS
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.
300 MIPS
PCI Bus
®
fonts on a standard or high definition television and a
Audio Input
BCM4413
Audio Out
Video Out
Ethernet
1394 I/F
SDRAM
Analog
Codec
HPNA
Flash
ROM
V.90
I/O
Parallel Ports
Expansion
Connector
Controller
Module
USB I/F
Serial/
VoIP
IDE
PCI
Hard Disk
Drive
Email: [e-mail]
Web: www.broadcom.com
Phone: [phone]
FAX: [phone]
®
RISC