BCM3349
®
ADVANCED QAMLINK
®
DOCSIS
®
2.0 HIGH-PERFORMANCE,
SINGLE-CHIP CABLE MODEM
FEATURES
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DOCSIS
®
/EuroDOCSIS™ 2.0 cable modem providing
unprecedented levels of integration and performance
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The BCM3349 integrates:
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High performance 200 MHz MIPS32™ CPU
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Advanced QAMLink
®
transceiver supporting Annex A/B/C
operation
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DOCSIS/EuroDOCSIS 2.0 MAC with 16 SIDS
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Advanced QAMLink downstream demodulator supporting
4 QAM – 1024 QAM
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Advanced QAMLink upstream modulator supporting
2 QAM – 256 QAM with S-CDMA
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Upstream power amplifier
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IEEE 802.3 10/100 Ethernet MAC and PHY
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USB 1.1 slave port with integrated transceiver
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100-MHz SDRAM interface
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Single 28-MHz reference crystal
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Voltage regulators for single voltage system operation
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Advanced RF and control interface to Broadcom BCM3419
silicon tuner
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Expansion bus for peripherals such as 802.11 and/or VoIP
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Advanced 2.0+ features:
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SmartSpectrum™ noise immunity technology
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Propane
®
packet accelerator
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TurboQAM™ performance enhancement
•
Sixth-generation technology
SUMMARY OF BENEFITS
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Extreme integration level leads to highly cost-effective BOM.
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Package optimization enables low-cost 2-layer system PCB.
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Integrated upstream power amp and 10/100 Ethernet MAC/
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PHY lowers overall system cost.
Support for DOCSIS/EuroDOCSIS 2.0 enables one device
solution to be used worldwide.
High speed MIPS
®
processor delivers 270 DMIS, a 30–50%
throughput improvement over previous generations
Advanced QAMLink modulator/demodulator provides
superior performance in noisy plant environments
16 SIDs that provide for superior QoS performance and
simultaneous support of high QoS and BE traffic.
SmartSpectrum delivers multiple dB enhanced robustness in
noisy plant conditions.
Propane packet acceleration improves throughput and
efficiency up to 3x.
TurboQAM leads to over 30% increased upstream and
downstream performance.
Sixth-generation technology delivers an industry-leading,
highly stable and reliable product.
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316-pin PBGA package
High-Performance, Single-Chip DOCSIS
®
/EuroDOCSIS™ 2.0 Cable Modem