BCM3033
PRODUCT
®
Brief
O F
B E N E F I T S
BCM3033 QAMLINK
®
UNIVERSAL MODULATOR
B C M 3 0 3 3
F E AT U R E S
S U M M A R Y
•
BCM3033 is a universal headend QAM modulator
•
Integrated QAMLink modulator
•
•
•
•
•
•
•
A high-performance, integrated solution for
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
modulators in digital cable TV headend, digital cable
modem headend, digital microwave radio, SMATV
and MMDS applications
manufacturing costs
•
An integrated solution that reduces board space and
•
A flexible solution that supports the FEC encoding
standards for North America, Europe, and Asia
rates worldwide
•
Integrated ITU-T J.83/Annex A
•
A universal modulator solution that supports all data
(DVB/DAVIC/IEEE802.14), Annex B (DigiCipher
®
II/
SCTE/DOCSIS™/EuroDOCSIS/IEEE 802.14), and
Annex C (Japan) FEC Encoding
•
Integrated 10-bit digital-to-analog converter
•
Compatible with Broadcom’s QAMLink receivers
•
BSC or SPI-compatible microcontroller interface
•
JTAG test interface
•
120-pin PQFP package
Cable Modem Termination System
44 MHz IF
PA
LPF
BCM3033
QAM
Modulator
Pentium
®
PC
CLOCK
DATA
BCM3210
MAC
PCI
Interface
PCI
Backbone
CLOCK
DATA
100BASE-T
Ethernet
5–65 MHz
VGA
RF
Tuner
SAW
LPF
BCM3137
Burst Demod
1–8 Channels
BOARDCOM [ Broadcom Corporation. ]
