The BCM3350 integrates all the silicon components of
a cable modem, resulting in dramatic overall system
cost reduction.
Includes a 100 MIPS CPU with EJTAG embedded
ICE support for ease of software development and
debug.
Displays superior performance in noisy plant
environments as a result of Broadcom's newest
generation of Broadcom QAMLink technology.
Features a full IPv6 IPSec module to support
advanced applications such as Virtual Private
Networking (VPN).
The full USB 1.1 compliant interface enabling simple
plug and play external cable modem implementations.
The integrated 10/100 Ethernet MAC and PHY with
MII eliminating the need for any external Ethernet
components.
Includes seamless interface with the BCM4210/4100
HPNA 1/2 components for low-cost home networking
extensions.
Features a completely static design with powerdown
features for low-power operation.
BCM3350 QAMLINK
SINGLE-CHIP CABLE MODEM
Low-Cost DOCSIS/EuroDOCSIS Cable Modem
S U M M A R Y O F B E N E F I T S
PRODUCT
Brief
B C M 3 3 5 0
10/100
Ethernet
RJ-11
USB 1.1
BCM4210
HPNA 2.0
BCM
4100
BCM3350
Single-Chip
DOCSIS/
EuroDOCSIS 1.0/1.1
Cable Modem
FLASH
SAW
Tuner
SDRAM
The highest level of silicon integration ever achieved
for a DOCSIS/EuroDOCSIS cable modem, integrating
all the major silicon components of a cable modem
into a single device
The BCM3350 integrates:
QAMLink transceiver supporting Annex A/B/C operation
DOCSIS/EuroDOCSIS 1.0/1.1 based MAC
High performance 100 MIPS CPU
10/100 Ethernet MAC and PHY with MII interface
USB 1.1 slave port with integrated transceiver
IPSEC interface including DES, 3-DES, CBC, MD5, SHA
algorithm support
TDM interface capable of supporting up to four voice
channels
SDRAM interface
External bus interface with eight programmable chip selects
GPIO interface
2.5V operation
352-pin TBGA package
B C M 3 3 5 0 F E A T U R E S
Direct TDM CODEC Interface
MIPS R3000 CPU
with EJTAG Interface
Peripheral Bus
BPI Interface
Reg Interface
Peripheral Bus Bridge
Upstream
MAC
Two-channel
DS DMA
Downstream
MAC
16-channel
US DMA
IP Security Module
Serial Ports
GPIO Port
JTAG Port
10-bit
DAC
10-bit
ADC
Amp/Tuner Control
Acquisition
and Tracking Loops
SPI
D-CACHE
I-CACHE
Clock Gen & PLLs
Timers
PIC
QPSK/16QAM
Modulator
Starvue
MCNS/DAVIC FEC
Register Interface
FEC Memory
ITU-T J.83
Annex A/B/C FEC
QAM
Demodulator
10/100BASE-TX
Ethernet MAC
10/100BASE-TX
Transceiver
DMA Controller & Central Arbiter
16-bit External Bus Interface
32-bit SDRAM Controller
USB Device Controller
USB XVER
The Broadcom BCM3350 represents a new level of cost-
reduction for DOCSIS/EuroDOCSIS cable modems. Key
modules integrated in the BCM3350 include:
64/256 QAM receiver which supports direct IF sampling
with an integrated 10-bit A/D converter and a ITU-J.83
Annex A/B/C compatible decoder. QPSK/16QAM
transmitter consisting of programmable
DOCSIS/EuroDOCSIS and DAVIC FEC encoder, with pre-
equalization filter and a 10-bit D/A converter with output
power control.
DOCSIS/EuroDOCSIS 1.0/1.1 based MAC supports an
integrated DES encryption/decryption engine, and QoS,
support for 16 SIDS in the downstream, 16 destination
address filters, 256 multicast DA filters and 16 independent
upstream queues for QoS, as well as extended network
management MIB/diagnostic features
100 MIPS R3000 processor with 4K two-way set
associative I-cache and a 4K two-way associative D-cache.
Full-speed USB 1.1 interface supports concurrent
operations of control, bulk, isochronous and interrupt
endpoints. It also supports USB standard commands, as
well as class/vendor specific commands.
10/100 Ethernet Transceiver and Media Access Controller
(MAC) with MII. The transceiver/MAC performs all of
the functions for 100BASE-TX Ethernet in full- or half-
duplex mode over Category (CAT) 5 twisted pair cable and
10BASE-T Ethernet in full- or half-duplex mode over CAT
3, 4, or 5 twisted pair cable.
IPSec module with single-DES (CBC & ECB modes),
triple-DES (CBC & ECB modes), MD-5 and SHA
authentication in hardware providing support for
application in Virtual Private Networks (VPN).
TDM four-wire serial interface with variable timeslots
from 232 that can be assigned to one of four transparent
input/output channel controllers enabling support for up
to four voice channels or one video (384 Kbs) and one
voice channel.
The BCM3350 represents the first silicon solution that
integrates all the key silicon components of a cable modem
into a single device, reducing the overall cost and complexity
of cable modem products.
Ordering Information:
BCM3350KPP
Commercial Temperature Grade
BCM3350IPB
Industrial Temperature Grade
B C M 3 3 5 0 O V E R V I E W
For more information please contact us at:
Phone: 949-450-8700, FAX: 949-450-8710
Email: info@broadcom.com
Visit our web site at: www.broadcom.com
2001 BROADCOM CORPORATION
3350-PB03-R-4.20.01
Broadcom
, the pulse logo and QAMLink are registered trademarks of Broadcom
Corporation and/or its subsidiaries in the United States and certain other countries.
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
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