Brief
BCM7402
®
AVC/MPEG-2/VC-1 HD DIGITAL VIDEO SYSTEM-ON-A-CHIP SOLUTION FOR SATELLITE, IP, AND CABLE
AVC/MPEG-2/VC-1 Platform Example
•Advanced AVC/MPEG-2/VC-1 decoder
•H.264/AVC main and high profile to level 4.1
•VC-1 advanced profile @ level 3
•VC-1 simple and main profile
•HD MPEG-2 and SD MPEG-2
•MPEG still-picture decode
•Advanced audio processor supporting the following:
•AAC LC, AAC LC+SBR level 2, AAC+ level 2
•Dolby® Digital, Dolby Digital Plus
•MPEG I layers 1, 2, and 3 (MP3)
•Windows Media® audio
•One pair of on-chip stereo high-fidelity audio DACs
•3D SRS audio support
•One I2S input port and one I2S output port
•SPDIF output
•Advanced 2D-effects graphic engine
•Studio quality text and graphics at HD resolution
•Supports multiple layers and windows
•Digital noise reduction (DNR)
•Reduces MPEG artifacts including block noise reduction
•Reduces mosquito noise
•Motion-adaptive deinterlacer with reverse 3:2/2:2 pulldown
•Letterbox detection
•OpenCable™ ready with on-chip MPOD support
• 300-MHz MIPS32®/16e class processor
•64-bit DDR DRAM controller
•HD analog video encoder with simultaneous SD outputs
•NTSC-M, NTSC-J, PAL-BDGHIN, PAL-M, PAL-Nc analog
outputs
•480i/480p/576i/576p/720p/1080i output formats
•Component RGB or YPrPb output
•Macrovision® 7.1 support
•SCART 1 and 2
•Component, S-Video, and composite via six on-chip V-DACs
•VBI encoders for CC/TTX with NABTS/CGMSA/WSS/Gemstar®
standards and dedicated TTX sideband
•RF modulator with BTSC encoder
•ITU-R-656 input and output ports
•HDMI 1.1/DVI 1.0 Mac and PHY with HDCP 1.1
•Broadcom security processor
•AES/1DES/3DES/CSS/CPRM/DTCP copy protection
•MPEG-2/DIRECTV/DVB/ARIB data transport demux with
1DES/3DES/DVB/Multi2/AES descramblers
•V.92-capable soft modem with integrated SiLab Si305x system
side device
•3.3V 33-MHz PCI 2.2
•Dual USB 2.0 host controller with dual-port transceiver
•Additional independent USB 1.1 host controller
•Ethernet Mac and PHY
• UHF remote control receiver
•Dual smart card support
FEATURES FEATURES (CONT.)
Audio
Out
RF
Mod
USB 2.0
TS In
HDMI/DVI
Out
IR and
UHF I/F
S/PDIF
Out
NTSC
PAL
Video
Comp.
Video
1394
MAC/PHY
1394
MAC/PHY
Front Panel I/F
OpenCable
™
CableCARD
™
DDR x64
SDRAM
200 MHz
256 MB
DDR x64
SDRAM
200 MHz
256 MB
Flash
64M x8
Flash
64M x8
BCM7402
450 DMIPS
MPEG-2 HD
AVC, VC-1
RF OUT
CABLE IN
STEREO AUDIO OUT
S/PDIF OUT VIDEO OUT YPbPr OUT
HDMI OUT
Dual
USB 2.0
FIREWIRE
BCM3420BCM3420
BCM3420
BCM3420BCM3420
BCM3420
BCM3420BCM3420
BCM3420
TS In
TS In
DDR SDRAM
16M B
DDR SDRAM
16 MB
Diplexer
Diplexer
BCM3255
DOCSIS 2.0
500+ DMIPS
Power
PCI
10/100
Ethernet
Ethernet
OVERVIEW
®
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: info@broadcom.com
Web: www.broadcom.com
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2005 by BROADCOM CORPORATION. All rights reserved.
7402-PB01-R 11/14/06
Broadcom®, the pulse logo, Connecting everything®, and the Connecting everything logo are among
the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries
and/or the EU. Any other trademarks or trade names mentioned are the property of their respective
owners.
BCM7402 Block Diagram
The BCM7402 is a high-definition satellite, cable, and IP set-top box non-
DVR solution offering integrated AVC (H.264/MPEG-4 Part 10), MPEG-2,
and VC-1 video decoding technology. It combines a data transport processor,
high-definition AVC/MPEG-2/VC-1 video decoder, advanced-audio decoder,
2D graphics processing, high-quality video scaling and motion adaptive
deinterlacing, six video DACs, stereo high-fidelity audio DACs, a MIPS32/
MIPS16e™ class CPU, and a peripheral control unit providing a variety of
set-top box control functions.
The MPEG-2 DVB-compliant transport stream/PES parser and
demultiplexer is capable of simultaneously processing 256 PIDs via 128 PID
channels in up to five independent external transport stream inputs and two
internal playback channels. All 128 PID channels can be used by the record,
audio, and video interface engine (RAVE), PCR processing, message filter,
and for output via the high-speed transport or remux module. The transport
provides 1DES/3DES/DVB/Multi2/AES descrambling support. A memory-
to-memory DMA security module may be programmed for supporting AES/
1DES/3DES/CSS/CPRM/CPPM/DTCP copy protection algorithms/
standards. The BCM7402 features the Broadcom secure processor providing
secure key generation, management, and protection.
An advanced video decoder is featured in the BCM7402, capable of
supporting high-definition AVC, VC-1, and MPEG-2 streams. AVC support
is for main- and high-profile to level 4.1 for 720p and 1080i high-definition
support or to level 3.1 for standard definition streams. AVC high profile was
added to the fidelity range extensions specifically to address the needs of
consumer broadcast applications. Tools include additional transform sizes
and spatial prediction modes and support for adaptive quantization matrix.
The video decoder also supports high-definition VC-1 (advanced-profile
level 3, main, and simple profiles) and MPEG-2, main profile at main and
high levels. The BCM7402 has an advanced audio processor capable of
decoding Dolby Digital, Dolby Digital Plus, AAC 5.1, AAC+ level 2, and
MPEG 1 layers 1, 2, and 3 with simultaneous pass-through support. 3D SRS
audio is also supported. Available audio outputs are I2S, SPDIF, and one pair
of analog outputs.
High-quality video and graphics processing is integrated, featuring advanced
studio quality 2D graphics processing. Also included are motion-adaptive
deinterlacing with 3:2 pulldown, and letterbox detection. Digital noise reduction
minimizes mosquito noise and MPEG artifacts, including block noise.
The BCM7402 has a dual-stream analog video encoder with Macrovision
that supports the following output standards: NTSC-M, NTSC-J, PAL-
BDGHIN, PAL-M, and PAL-Nc. The following output formats are
supported: composite, S-Video, SCART, RGB, and YPrPb component. The
following output resolutions are supported: 480i, 480p, 576i, 576p, 720p, and
1080i. Six output video DACs are available to be shared among the output
functions. The BCM7402 also supports output over an HDMI interface and
a channel 3/4 RF modulator. An ITU-R-656 output port is also available with
teletext sideband.
The BCM7402 incorporates a complete MIPS32™-based microprocessor
subsystem, including caches with bridging to memory and a local bus.
Integrated peripherals include three UARTS, two ISO7816 smart card
interfaces, counter/timers, a GPIO, a LED/keypad controller, IR receivers, an
IR blaster, a UHF remote control receiver, an integrated soft modem system
side device, and BSC and SPI controllers. Advanced connectivity features
include two USB 2.0/1.1 ports, an additional independent USB 1.1 port, a
serial ATA port, and an Ethernet port with Mac with integrated PHY and
alternate media independent interface (MII).
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