BCM6315 [ETC]
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| 型号： | BCM6315 |
| 厂家： | 
ETC |
| 描述： |
|
| 文件： | 总2页 (文件大小：151K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
B C M 6 3 1 5
P RODUCT
B C M 6 3 1 5 V - t h e r n e t ™ T R A N S C E I V E R
B C M 6 3 1 5 F E A T U R E S
S U M M A R Y O F B E N E F I T S
The Broadcom® BCM6315 is a single-chip V-thernet™
transceiver optimized for low-cost Ethernet transport on
telephone grade wire.
Operates on telephone grade and CAT 1–5 twisted
pair cable
•
Coexists with POTS
•
•
•
Supports most popular bit rates, including symmetric
10 and 13 Mbps
•
HPNA- compatible spectral plans available
Suitable for high-speed data transport through MDU
riser cable
Supports asymmetric up to 3 Mbps upstream and 52
Mbps downstream for typical VoD application
•
15 times greater reach than Ethernet
•
•
•
•
Sub- 1-watt power consumption
•
Suitable for both DSLAM and remote units
Small size and low power enables high port densities
Simple spectrum control via register programming
Programmable QAM constellations
•
On-chip A/D and D/A converters
•
Adjustable upstream and downstream center frequencies
•
On-chip RAM interleaving
•
Reed-Solomon FEC
•
Packet scrambling
•
Enhanced adaptive decision feedback equalizer
•
Bit/byte synchronous interfaces
•
Single 3.3V supply operation
•
JTAG test interface
•
Small 100-pin PQFP package
•
Re m o t e CP E Blo c k Dia g ra m
DS LAM Blo c k Dia g ra m
Analog
Front End
(AFE)
Analog
Front End
(AFE)
POTS
Splitter
POTS
Splitter
Ethernet
Switch
HDLC
Framer
HDLC
Framer
To
RJ45
10Base-T
BCM6 3 1 5
BCM6 3 1 5
Microcontroller
Microcontroller
B C M 6
3
1
5
O V E R V I E W
TRANS MITTER
Interleave
RAM
Nyquist
Filter
Interpolation
Filter
Packet
Format
Logic
Programmable
Reed-
Solomon
FEC
Encoder/
Interleaver
x
Rate
I/Q
Mod
D/A
sin x
Interpolation
Filter
Nyquist
Filter
RECEIVER
Reed-
Solomon
FEC
Decoder/
Nyquist
Filter
Adaptive
Decision-
Feedback
Equalizer
Programmable
Packet
Format
Logic
Rate
I/Q
Mod
De-Interleaver
A/D
Nyquist
Filter
Interleave
RAM
M-Bus / SPI
Interface
PLL / Clock
Generation
Acquisition/Tracking
Loops
JTAG
The BCM6315 is a single-chip V-thernet™ transceiver design
based on many years experience of QAM technology and LAN
products. It is designed for low-cost, long-reach Ethernet
applications employing telephone-grade wiring. The BCM6315
offers switch, DSLAM and CPE vendors an unmatched
capability for the provision of high-speed data transmission
services such as Internet access and LAN extensions in MDU,
MTU, hospitality and campus environments.
compatible with HomePNA. The chip’s FDD (Frequency
Division Duplex) scheme makes it an ideal solution to overcome
performance limitations due to crosstalk in the MDU riser wire
bundle. With its small footprint, the BCM6315 is ideal for use in
NIC, PC card, CPE modem switch and DSLAM designs.
Automatic link initialization software is available with the
BCM96315 V-thernet™ reference design package, supporting
symmetric and asymmetric profiles. The software has been
ported to the reference design and is also available in source code
format. The BCM6315 includes an equalizer, FEC, interleaver,
Mod, Demod, Packet Format Logic, A/D and D/A.
The BCM6315 is easily configured to support many popular data
rates such as symmetric 10 and 13 Mbps. It also offers spectral
plans with asymmetric data rates up to 3 Mbps upstream and 52
Mbps downstream. Either plan can be configured to be spectrally
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subsidiaries in the United States and certain other countries.
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© 2000 BROADCOM CORPORATION
BROADCOM CORP ORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
6315.PB00-R-9.14.00
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