BCM3252
®
Brief
SUMMARY OF BENEFITS
•
The BCM3252 provides a complete front-end solution for next-
generation set-top box products. North America and
international markets enable a single design to be deployed on
a worldwide basis.
Able to support IP video data rates at up to 80 Mbps, allowing
for future transition to an all IP network.
S oftware switchable from broadcast (video channel
configuration) to channel bonding, enabling in field-network
configuration transitions.
High-performance processor capable of supporting DOCSIS/
EuroDOCSIS 2.0+, channel bonding, and other network-
centric applications.
OOB provides support for existing OOB channels that are
used today. Facilitates move to DSG and DOCSIS.
USB 2.0, PCI, and Ethernet make for flexibility in connection
to back-end devices, BCM7038, BCM7400, BCM7401, and
BCM7402.
BOM savings resulting from integration enable lower overall
set-top box cost.
Broadcom-supplied code for channel bonding and DOCSIS
enables quick time-to-market.
DUAL-CHANNEL FRONT-END DOCSIS
®
2.0+ STB IC WITH
CHANNEL BONDING
FEATURES
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Dual QAM in-band demodulators
•
Out-of-band (OOB) demodulator for support of DVS-178 and
DVS-167
•
800DMIPS dual-threaded R4K MIPS processor
•
DOCSIS
®
/EuroDOCSIS™ 2.0+ including DSG and channel
bonding
•
DOCSIS and channel bonding code supplied by Broadcom
®
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DAVIC MAC
USB 2.0 MAC and PHY (full data rate USB supported)
PCI
Boot from unified back-end Flash (i.e., Flash connected to
BCM7038, BCM7400, BCM7401, or BCM7402)
•
Ethernet MAC and PHY
•
BOM savings include integrated regulators, VCX0, and
upstream amplifier
•
IPv6 supported
Basic Interactive DOCSIS 2.0+/DSG HD Set-Top Box Block Diagram
Stereo Audio Out
Opt.
Firewire
S/PDIF Out
Video Out
HDMI Out
RF Out
Dual
USB 2.0
Cable
Power
YPbPr Out
Audio
Out
HDMI/DVI
Out
S/PDIF
Out
NTSC/
Video
Comp.
Video
RF
Mode
DDR
SDRAM
8 MB
Diplexer
(Opt.)
1394
MAC/PHY
Optional
DDR
SDRAM
200 MHz
256 MB
x64
USB 2.0
MII
TS In
Sec. up/CA
BCM3420
BCM7402
HD AVC
VC-1
TS In
PCI
BCM3252
DOCSIS
®
2.0+
800DMIPS
BCM3420
MOCA
HomePlug AV
IEEE 802.11g,n
Flash
32Mx8
IR & UHF I/F
OpenCable
™
CableCARD
™
BOARDCOM [ Broadcom Corporation. ]
