bcm3551 Broadcom Corp., bcm3551 Datasheet - Page 2

• Manufacturer Part Number: bcm3551
• Description: Bcm3551 - Digital Tv System-on-chip
• Manufacturer: Broadcom Corp.

The BCM3551 combines a cable/terrestrial 4/1024-QAM and 8/16-VSB
receiver, an out-of-band QPSK receiver, NTSC demodulator,
DVI/HDMI receiver, a transport processor, a digital audio processor, a
high-definition (HD) MPEG video decoder, 2D graphics processing,
digital processing of analog video and audio, analog video digitizer and
DAC functions, stereo high-fidelity audio DACs, a 250-MHz MIPS
processor, and a peripheral control unit providing a variety of television
control functions.
The cable/terrestrial receiver directly samples a tuner output with an
A/D converter. It digitally resamples and demodulates the signal with
recovered clock and carrier timing, filters and equalizes the data, and
passes soft decisions to an ATSC A/53 and ITU-T J.83 Annex A/B/C
compatible decoder. A CEA/EIA-909 smart antenna interface is
included on chip.
The out-of-band receiver digitizes a SAW centered IF. It demodulates
the signal with recovered clock and carrier timing, filters and equalizes
the data and incorporates a DigiCipher
Broadcom
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.
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2006 by BROADCOM CORPORATION. All rights reserved.
3551-PB02-R
®
, the pulse logo, Connecting everything
10/23/06
Component (Pb)
Component (Pr)
Component (Y)
Composite_2
Composite_3
Composite_1
S-video(C)
S-video(L)
DVI/HDMI
HD_DVI
ITU656
SPDIF
OB_IF
DS_IF
I
2
S
®
®
3 x 10-bit A/Ds
Video Front
Receiver
12-bit A/D
II/ DAVIC-compatible FEC
®
HDMI
A/D
End
, and the Connecting everything logo are among the
QAM/VSB Demodulator
Demod
QPSK
OOB
A2 and BTSC Decoders
NTSC Demod+
BCM3551 Block Diagram
VBI Decoder
NTSC/PAL
Decoder
Interface HW
Controller
Common
Comb
3D
O V E R V I E W
POD Cable CARD
Processor/
EIA/CEA
Decoder
Audio
909
MPEG-2 Transport Processor,
decoder. The common hardware interface provides a direct interface to a
POD/CableCard.
The BCM3551 has an MPEG-2 DVB compliant transport processor with
advanced section filtering capability, DVB descrambler, MPEG-2
(MP@HL profile) video decoder, a BTSC audio decoder, a Dolby
AC3/MPEG-2 layer 1, 2, audio decoder with SPDIF and a pair of analog
outputs (L-R), a single NTSC/PAL/SECAM video encoder with optional
Macrovision
PAL decoder is supported by motion adaptive de-interlacing and a 3D
comb filter. The BCM3551 includes Broadcom’s advanced 2D graphics
processing. Two transport stream inputs, one ISO7816 smart card
interface and a high speed interface supporting 1394 are included.
The BCM3551 incorporates a complete MIPS32™ based
microprocessor subsystem including caches with bridging to memory
and a local bus, where external peripherals can be attached. Integrated
peripherals include USB 2.0, three UARTs, counter/timers, GPIO,
keypad, LED, IR Tx/Rx, IR Keyboard, BSC, and SPI controllers.
Graphics Processing
Motion Adaptive
Enhancement
Deinterlacing
Processing
DES
Picture
Video
And
32-bit DDR Interface
MPEG-2 HD/SD Video Decoder
200 MHz
®
output, and a NTSC analog video decoder. The NTSC/
HD/SD Video
2D Graphics
Encoder
32-bit PCI 33-MHz Interface
16KI and 16KD
MIPS32/16
250 MHz
Dual UARTs
Keypad LED
Audio DACs
Peripherals
3x Video
USB 2.0
DACs
GPIO
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com
USB 2.0
Hsync, Vsync
ITU656
HDVO
L-R
AUDC
SPDIF
PCI/EBI
YPrPb, Svideo,
CVBS
I
2
S