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BCM93120 Datasheet

  • BCM93120

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  • ETC

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BCM93120
PRODUCT
Brief
O F
B E N E F I T S
BCM93120 QAMLINK
廬
SET-TOP BOX REFERENCE DESIGN
B C M 9 3 1 2 0
BCM3120
F E AT U R E S
S U M M A R Y
鈥?/div>
Cable set-top box transceiver based on the Broadcom
鈥?/div>
QPSK to 256-QAM downstream demodulator with
integrated 10-bit A/D converter and ITU-T J.83 Annex
A/B/C FEC
鈥?/div>
The BCM93120 reference design deliverables include
schematics, BOM, Gerber files, software device
drivers and documentation.
鈥?/div>
The highly integrated BCM3120 enables the
from 70 鈥?130 MHz.
development of very low cost set-top box products:
鈥?/div>
QPSK, 16-QAM upstream burst modulator with
integrated 10-bit D/A converter and
DOCSIS/EuroDOCSIS, DAVIC-compliant FEC
鈥?/div>
Burst modulator is digitally tunable from 0 鈥?65 MHz.
鈥?/div>
OOB Demodulator is frequency agile
鈥?/div>
In-band demodulator samples at picture IF.
鈥?/div>
Out-of-band (OOB) QPSK demodulator with integrated
6-bit A/D converter and ITU-T J.83 Annex B/DAVIC
compliant FEC
鈥?/div>
Audio/Video/Graphic Subsystem based upon the
BCM7010
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Supports MPEG2/DC2 transport and video decoding
Supports Dolby Digital
廬
AC-3鈩?Audio
4 and 8-bit OSD with 16-level blend
NTSC/PAL encoder with analog NTSC, S video outputs
and Macrovision 7.01
鈥?/div>
Integrates analog front-end on BCM3120.
鈥?/div>
Integrates audio and video DACs on BCM7010.
鈥?/div>
Performs within 0.5 dB of theory at 1E-5 BER.
鈥?/div>
The highly integrated BCM7010 enables the
鈥?/div>
Dolby Digital audio includes analog and SPDIF
outputs.
development of very low cost set-top box products:
鈥?/div>
Software device drivers for the BCM3120 and
BCM7010
鈥?/div>
4 and 8-bit OSD controller provides 16-level blending.
鈥?/div>
NTSC/PAL encoder with analog NTSC, S video output
and Macrovision鈩?7.01.
鈥?/div>
Broadcom diagnostic/debug interface
鈥?/div>
MC68331 microcontroller
鈥?/div>
Broadcom-developed device drivers enable rapid time
to deployment.
BCM93120 QAMLink Set-Top Box Reference Design

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