BCM3300
器件资料摘要：
•
Fully-integrated, DOCSIS-compliant PHY/ MAC
integrated circuit
•
Reduces overall system cost
•
Simplifies system, board and software design
•
Reduces power consumption
•
Single crystal design with direct IF sampling
•
Complete Media Access Control (MAC) function for
MCNS-compliant cable modem
• Ensures interoperability in consumer-grade products.
•
Baseline privacy encryption and decryption
• Support for up to 16 SIDs and 16 56-bit DES
encryption keys with initialization vectors
•
40-bit DES version available for export
•
Hardware processing, enabling real-time
•
Termination of MPEG-2 transmission convergence
sublayer
• Generation/verification of CRC and HCS
• Extraction and processing of time stamps and system
timing
• MAP message handling and upstream bandwidth
requests
• MAC layer fragmentation in hardware
• Extensive address filtering
BCM3300 QAMLink
®
SINGLE-CHIP DOCSIS CABLE MODEM
DOCSIS-Compliant External Cable Modem
SUMMARY OF BENEFITS
PRODUCTPRODUCT
BriefBrief
BCM3300
5-42 MHz
Control
54-860 MHz
PA
SRAM
USB
XCVR
DRAM
BCM5201
10/100BT
XCVR
FLASH
Diplex
Filter
USB
RJ-45
BCM3300
Single-Chip
MCNS/DOCSIS
Cable Modem
RF
Tuner
LPF
SAW
BCM3310
Serial 1,2
USB Ethernet
•
Integrated QAMLink Receiver
• 10-bit A/D converter with input AGC amplifier
•
Variable symbol rate 256 QAM receiver
• Digital demodulator, Nyquist filters, tracking loops and
32-tap adaptive decision feedback equalizer
• ITU-T J.83 Annex A/B/C compatible FEC
•
Integrated Upstream Transmitter
• Programmable FEC encoder
• Pre-equalizer filter
• QPSK/16 QAM burst modulator
• 10-bit D/A converter with output power control
•
Integrated DOCSIS Media Access Controller (MAC)
• DOCSIS version 1.0 and 1.1 compliant
• Supports for fragmentation and concatenation
• Supports enhanced Quality of Service (QoS) for Voice
over IP (VoIP) applications
• Support for 16 destination address and 256 multicast
address filters
• Four simultaneous upstream SIDS multiplexed to 16
•
CPU Interfaces
• Motorola MC68360, MPC850 PowerPC
• IDT79R3081 MIPS, BCM3310 Communications
Processor
•
3.3V Operation
•
256-pin BGA package
BCM3300 FEATURES
®
Fully-integrated, DOCSIS-compliant PHY/ MAC
integrated circuit
•
Reduces overall system cost
•
Simplifies system, board and software design
•
Reduces power consumption
•
Single crystal design with direct IF sampling
•
Complete Media Access Control (MAC) function for
MCNS-compliant cable modem
• Ensures interoperability in consumer-grade products.
•
Baseline privacy encryption and decryption
• Support for up to 16 SIDs and 16 56-bit DES
encryption keys with initialization vectors
•
40-bit DES version available for export
•
Hardware processing, enabling real-time
•
Termination of MPEG-2 transmission convergence
sublayer
• Generation/verification of CRC and HCS
• Extraction and processing of time stamps and system
timing
• MAP message handling and upstream bandwidth
requests
• MAC layer fragmentation in hardware
• Extensive address filtering
BCM3300 QAMLink
®
SINGLE-CHIP DOCSIS CABLE MODEM
DOCSIS-Compliant External Cable Modem
SUMMARY OF BENEFITS
PRODUCTPRODUCT
BriefBrief
BCM3300
5-42 MHz
Control
54-860 MHz
PA
SRAM
USB
XCVR
DRAM
BCM5201
10/100BT
XCVR
FLASH
Diplex
Filter
USB
RJ-45
BCM3300
Single-Chip
MCNS/DOCSIS
Cable Modem
RF
Tuner
LPF
SAW
BCM3310
Serial 1,2
USB Ethernet
•
Integrated QAMLink Receiver
• 10-bit A/D converter with input AGC amplifier
•
Variable symbol rate 256 QAM receiver
• Digital demodulator, Nyquist filters, tracking loops and
32-tap adaptive decision feedback equalizer
• ITU-T J.83 Annex A/B/C compatible FEC
•
Integrated Upstream Transmitter
• Programmable FEC encoder
• Pre-equalizer filter
• QPSK/16 QAM burst modulator
• 10-bit D/A converter with output power control
•
Integrated DOCSIS Media Access Controller (MAC)
• DOCSIS version 1.0 and 1.1 compliant
• Supports for fragmentation and concatenation
• Supports enhanced Quality of Service (QoS) for Voice
over IP (VoIP) applications
• Support for 16 destination address and 256 multicast
address filters
• Four simultaneous upstream SIDS multiplexed to 16
•
CPU Interfaces
• Motorola MC68360, MPC850 PowerPC
• IDT79R3081 MIPS, BCM3310 Communications
Processor
•
3.3V Operation
•
256-pin BGA package
BCM3300 FEATURES
®