BCM3037 Broadcom Corporation, BCM3037 Datasheet
BCM3037
Manufacturer Part Number
BCM3037
Description
Manufacturer
Broadcom Corporation
Datasheet
1.BCM3037.pdf
(2 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
BCM3037KPF
Manufacturer:
BROADCOM
Quantity:
62
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The Broadcom BCM3037 is a universal QPSK/QAM burst
transmitter for DOCSIS/EuroDOCSIS applications
DOCSIS/EuroDOCSIS, IEEE 802.14, DAVIC and DVB-
compliant
Programmable Modulation: /4 DQPSK, QPSK, 16-QAM
Variable symbol rates up to 6.25 MB
25 Mbps maximum data rate
QAMLink modulator with
filters
Digitally tunable IF center frequency up to 65 MHz
Programmable Components Include:
• 6 burst profiles
• Analog output attenuation up to 25dB
• Transmitter pre-equalizer
• RS encoder, GF (256), T = 0 to 10
• Last RS codeword: fixed length, shortened
• 23-bit randomizer: polynomial, seed, type
• Differential/non-differential encoding
Integrated 10-bit digital-to-analog converter
Direct interface to BCM3250 MAC
JTAG Test Interface
64-pin PQFP Package
BCM3037 QAMLINK® UNIVERSAL BURST MODULATOR
Interactive Set-Top Box Block Diagram with Dual Upstream Burst Modulators
F E A T U R E S
Out-of-Band
Upstream 1
Upstream 2
DOCSIS
= 0.25/0.50 square-root Nyquist
Video
®
BCM3250
S et -T op B ox
BCM3037
QPSK/16-QAM
S ingle -C hip
F ront E nd
A dvanced
M odulator
U pstream
Video
PCI
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BCM3037
A high-performance, integrated solution for upstream
modulation in cable data modems, interactive cable-TV set-top
boxes, and wireless applications
Significantly increases upstream channel bandwidth
Supports multiple standards for worldwide deployment
Reduces system manufacturing costs and complexities with an
on-chip D/A converter
Improves robustness in noisy upstream channels utilizing pre-
equalization
Fully compatible with the Broadcom BCM3137 QAMLink
headend burst demodulator
H igh D efinition
V ideo /G raphics
BCM7030
S ubsystem
CPU
S U M M A R Y O F B E N E F I T S
Video/Audio
Out
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BCM3037 Summary of contents
Page 1
... BCM3037 QAMLINK® UNIVERSAL BURST MODULATOR • The Broadcom BCM3037 is a universal QPSK/QAM burst transmitter for DOCSIS/EuroDOCSIS applications • DOCSIS/EuroDOCSIS, IEEE 802.14, DAVIC and DVB- compliant • Programmable Modulation: /4 DQPSK, QPSK, 16-QAM • Variable symbol rates up to 6.25 MB • ...
Page 2
... ADDR1 SPI SS MISO power down in each burst. The output of the BCM3037 can then be sent to a power amplifier. There are standard DAVIC A0 and ATM UTOPIA serial input interfaces provided. There is also a generic byte-based interface. Alternatively, the BCM3037 can be configured to provide a data bit clock for synchronizing data. Control information is input ...