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BCM3345 Datasheet, PDF (1/1 Pages) Broadcom Corporation. – QAMLINK HIGH PERFORMANCE SINGLE CHIP CABLE MODEM | |||
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BCM3345
PRODUCT
®
Brief
QAMLINK® HIGH-PERFORMANCE, SINGLE-CHIP CABLE MODEM
BCM3345 FEATURES
⢠State-of-the-art, single-chip DOCSIS/EuroDOCSIS
1.0/1.1 cable modem providing unprecedented levels of
integration and performance
⢠The BCM3345 integrates:
⢠Advanced QAMLink® transceiver supporting Annex A/B/C
operation
⢠DOCSIS/EuroDOCSIS 1.0/1.1 MAC
⢠High-performance, 140-MHz MIPS-32 CPU
⢠Advanced QAMLinkâ downstream demodulator, supporting
4/16/32/64/128/256 QAM
⢠Advanced QAMLink upstream modulator, supporting
2/4/8/16 QAM
⢠Upstream power amplifier
⢠10/100 Ethernet MAC/PHY with MII interface
⢠Single 28MHz reference crystal
⢠USB 1.1 slave port with integrated transceiver
⢠100-MHz SDRAM interface
⢠Advanced RF and control interface to silicon tuner for
DOCSIS/EuroDOCSIS solutions
⢠EJTAG embedded ICE support
⢠On-chip support for PropaneTM packet acceleration
⢠1.8/3.3 volt operation
⢠312-pin PBGA package
SUMMARY OF BENEFITS
⢠Results in simplified BOMâreduces component count,
improves assembly process and results in lowest
overall system cost for DOCSIS/ EuroDOCSIS 1.0/1.1
cable modem.
⢠DOCSIS/EuroDOCSIS 1.0/1.1 MAC is compatible
with existing Cable Modem application code, resulting
in minimum time to market.
⢠140-MHz MIPS-32 CPU provides 66% improvement
in packet throughput over prior generations.
⢠Advanced QAMLinkTM modulator/demodulator
provides superior performance in noisy plant
environments.
⢠On-chip Propane supports DOCSIS/EuroDOCSIS
based packet acceleration.
⢠Integrated 10/100 Ethernet MAC/PHY with MII
eliminates the need for external Ethernet support.
⢠Fully USB 1.1 compliant interface enables simple Plug
and Play installations.
⢠EJTAG embedded ICE support is compatible with
existing MIPS32 development tools, improving
software development and testing.
High-Performance, Single-Chip DOCSIS/EuroDOCSIS 1.1 Cable Modem
SDRAM
Diplexer
Silicon
Tuner
SAW
BCM3345
High Performance
Single Chip
DOCSIS/EuroDOCSIS 1.1
Cable Modem
10/100
Ethernet
USB 1.1
FLASH
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