PRODUCT
Brief
B C M 6 3 1 5
Microcontroller
POTS
Splitter
10Base-T
To
RJ45
BCM6315
Analog
Front End
(AFE)
HDLC
Framer
Operates on telephone grade and CAT 15 twisted
pair cable
Coexists with POTS
HPNA- compatible spectral plans available
Suitable for high-speed data transport through MDU
riser cable
15 times greater reach than Ethernet
Suitable for both DSLAM and remote units
Small size and low power enables high port densities
Simple spectrum control via register programming
B C M 6 3 1 5 V - t h e r n e t TM
T R A N S C E I V E R
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-thernetTM
transceiver optimized for low-cost Ethernet transport on
telephone grade wire.
Supports most popular bit rates, including symmetric
10 and 13 Mbps
Supports asymmetric up to 3 Mbps upstream and 52
Mbps downstream for typical VoD application
Sub- 1-watt power consumption
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
B C M 6 3 1 5 F E A T U R E S
Microcontroller
POTS
Splitter
HDLC
Framer
Ethernet
Switch
BCM6315
Analog
Front End
(AFE)
Remote CPE Block Diagram
DSLAM Block Diagram
B C M 6 3 1 5 O V E R V I E W
The BCM6315 is a single-chip V-thernetTM 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.
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
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-thernetTM 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.
TRANSMITTER
RECEIVER
x
sin x
D/A
A/D
Packet
Format
Logic
Packet
Format
Logic
Nyquist
Filter
Nyquist
Filter
Acquisition/Tracking
Loops
PLL / Clock
Generation
JTAG
M-Bus / SPI
Interface
Nyquist
Filter
Interpolation
Filter
Interpolation
Filter
Programmable
Rate
I/Q
Mod
Programmable
Rate
I/Q
Mod
Nyquist
Filter
Reed-
Solomon
FEC
Encoder/
Interleaver
Reed-
Solomon
FEC
Decoder/
De-Interleaver
Adaptive
Decision-
Feedback
Equalizer
Interleave
RAM
Interleave
RAM
For more information please contact us at:
Phone: 949-450-8700, FAX: 949-450-8710
Email: info@broadcom.com
Visit our web site at: www.broadcom.com
2000 BROADCOM CORPORATION
6315.PB00-R-9.14.00
Broadcom
and the pulse logo are registered trade marks of Broadcom Corporation and/or its
subsidiaries in the United States and certain other countries.
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
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