bcm3349 Broadcom Corp., bcm3349 Datasheet
bcm3349
Manufacturer Part Number
bcm3349
Description
Bcm3349 - Qamlink Docsis 2.0 Single-chip Cable Modem
Manufacturer
Broadcom Corp.
Datasheet
1.BCM3349.pdf
(2 pages)
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•
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•
•
•
DOCSIS
unprecedented levels of integration and performance
The BCM3349 integrates:
• High performance 200 MHz MIPS32™ CPU
• Advanced QAMLink
• DOCSIS/EuroDOCSIS 2.0 MAC with 16 SIDS
• Advanced QAMLink downstream demodulator supporting
• Advanced QAMLink upstream modulator supporting
• Upstream power amplifier
• IEEE 802.3 10/100 Ethernet MAC and PHY
• USB 1.1 slave port with integrated transceiver
• 100-MHz SDRAM interface
• Single 28-MHz reference crystal
• Voltage regulators for single voltage system operation
• Advanced RF and control interface to Broadcom BCM34XX
• Expansion bus for peripherals such as 802.11 (PBGA package
Advanced 2.0+ features:
• SmartSpectrum™ noise immunity technology
• Propane
• TurboQAM™ performance enhancement
Sixth-generation technology
316-pin PBGA or 324-pin FBGA RoHS package options
operation
4 QAM – 1024 QAM
2 QAM – 256 QAM with S-CDMA
silicon tuner
only)
ADVANCED QAMLINK
®
/EuroDOCSIS™ 2.0 cable modem providing
®
packet accelerator
F E A T U R E S
High-Performance, Single-Chip DOCSIS
®
transceiver supporting Annex A/B/C
®
SINGLE-CHIP CABLE MODEM
Silicon
Tuner
®
DOCSIS/EuroDOCSIS 2.0
DOCSIS
(optional)
High-Performance
Wireless
BCM3349
Cable Modem
Single-Chip
SDRAM
BCM3349
®
®
•
•
•
•
•
•
•
•
•
•
•
Flash
/EuroDOCSIS™ 2.0 Cable Modem
Extreme integration level leads to highly cost-effective BOM.
Package optimization enables low-cost 2-layer system PCB.
Integrated upstream power amp and 10/100 Ethernet MAC/PHY
lowers overall system cost.
Support for DOCSIS/EuroDOCSIS 2.0 enables one device
solution to be used worldwide.
High speed MIPS
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.
2.0 HIGH-PERFORMANCE,
S U M M A R Y O F B E N E F I T S
Expansion Bus Interface (EBI)
®
10/100
Ethernet
USB
processor delivers 270 DMIPS, a 30–50%
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bcm3349 Summary of contents
Page 1
... ® • DOCSIS /EuroDOCSIS™ 2.0 cable modem providing unprecedented levels of integration and performance • The BCM3349 integrates: • High performance 200 MHz MIPS32™ CPU ® • Advanced QAMLink transceiver supporting Annex A/B/C operation • DOCSIS/EuroDOCSIS 2.0 MAC with 16 SIDS • ...
Page 2
... The BCM3349 pinout has been optimized to allow an ultra low-cost 2-layer PCB. With the incorporation of an upstream power amplifier and Ethernet PHY, the BCM3349 allows a complete cable modem to be assembled with a minimal set of external components. When used with the BCM34XX silicon tuner, the BCM3349 offers the most cost-effective solution for a high- performance, single-user DOCSIS 2.0 cable modem. ® ...