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BCM3033 Datasheet, PDF (1/2 Pages) Broadcom Corporation. – QAMLINK UNIVERSAL MODULATOR | |||
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BCM3033
PRODUCT
®
Brief
BCM3033 QAMLINK® UNIVERSAL MODULATOR
BCM3033 FEATURES
⢠BCM3033 is a universal headend QAM modulator
⢠Integrated QAMLink modulator
⢠Supports 4, 16, 32, 64, 128 and 256-QAM
⢠Variable data rates up to 7 megabaud
⢠Linear phase digital square-root Nyquist transmit filters
⢠>60-dB stop band attenuation in digital filters
⢠Perfect quadrature amplitude and phase balance
⢠X/sinX filter for DAC distortion compensation
⢠Integrated ITU-T J.83/Annex A
(DVB/DAVIC/IEEE802.14), Annex B (DigiCipher® II/
SCTE/DOCSISâ¢/EuroDOCSIS/IEEE 802.14), and
Annex C (Japan) FEC Encoding
⢠Integrated 10-bit digital-to-analog converter
⢠Compatible with Broadcomâs QAMLink receivers
⢠BSC or SPI-compatible microcontroller interface
⢠JTAG test interface
⢠120-pin PQFP package
SUMMARY OF BENEFITS
⢠A high-performance, integrated solution for
modulators in digital cable TV headend, digital cable
modem headend, digital microwave radio, SMATV
and MMDS applications
⢠An integrated solution that reduces board space and
manufacturing costs
⢠A flexible solution that supports the FEC encoding
standards for North America, Europe, and Asia
⢠A universal modulator solution that supports all data
rates worldwide
Cable Modem Termination System
44 MHz IF
PA
5â65 MHz
VGA
RF
Tuner
LPF
BCM3033
QAM
Modulator
CLOCK
DATA
Pentium®
PC
SAW
BCM3210
MAC
PCI
Interface
PCI
Backbone
CLOCK
DATA
LPF
BCM3137
Burst Demod
1â8 Channels
100BASE-T
Ethernet
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