bcm5241 Broadcom Corp., bcm5241 Datasheet - Page 2
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bcm5241
Manufacturer Part Number
bcm5241
Description
Bcm5241 - Single-port Mii 10/100base-tx Transceiver
Manufacturer
Broadcom Corp.
Datasheet
1.BCM5241.pdf
(2 pages)
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DSP-Based PHY Technology
The BCM5241 builds on Broadcom's proven DSP PHY design and full
custom circuit design techniques to create a highly-integrated and robust
physical layer solution. DSP techniques allow the BCM5241 to achieve
high interoperability and to exhibit robust performance across voltage
(+/-10%), temperature, and process variations. Broadcom's DSP-based,
Broad-Φ™ technology has been proven in the shipment of over one
billion Fast Ethernet ports. Due to the significantly greater test coverage
for a DSP based PHY, Broadcom's PHYs exhibit superior quality with a
failure rate of well under 10 PPM.
Network Tolerance
The BCM5241 includes features that simplify the installation and
maintenance of local area networks. A simple help tool is the
CableChecker™, which enables basic cable issues to be resolved without
contacting technical support. These issues include not plugging the cable
correctly at one or both ends, identifying if the cable is damaged, or
determining if the remote system is powered up.
Another network tolerance feature is the HP Auto-MDIX capability,
which automatically detects and corrects crossed cables. With HP Auto-
MDIX, the installer does not need to know what is on the other end of the
network cable. The BCM5241 automatically switches its transmit and
receive circuitry to accommodate the link partner’s polarity.
Broadcom
the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries
and/or the EU. Any other trademarks or trade names mentioned are the property of their respective
owners.
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2006 by BROADCOM CORPORATION. All rights reserved.
5241-PB01-R
®
, the pulse logo, Connecting everything
04/19/06
XTALI/REF_CLK
XTALO
RDAC
RD
TD
±
±
®
Generator
Generator
CRS/Link
Detection
®
Clock
, and the Connecting everything logo are among
Bias
MDIX
Auto
BCM5241 Reference Design
Correction
Multimode
Baseline
Wander
Xmt DAC
ADC
O V E R V I E W
Recovery
Equalizer
Adaptive
Digital
Clock
Cable-sourced electrostatic discharge (CESD) is a recently discovered
phenomenon that occurs when an electrically charged network cable is
plugged into a networked product. This is an issue becoming more
prevalent with recent cable installations. The BCM5241 has been
designed and tested to withstand over 2KV of CESD, which unlike other
transceivers, prevents the device from being destroyed in a CESD event.
Low Power Fast Ethernet PHY
The BCM5241 has an extremely low power dissipation of less than 170
mW. It features an integrated voltage regulator, and can be supplied by
either 2.5V or 3.3V power sources. The BCM5241 employs several
intelligent power-down states that conserve power, while allowing
BCM5241-based products to automatically turn on when needed.
The BCM5241 includes a unique Intelligent Power-Management feature
that powers down the device if energy is not detected on the cable. This
feature is especially useful for portable and power-sensitive applications.
The BCM5241 can be set to periodically wake up at a user-defined
interval, allowing the device to initiate keep-alive network traffic. For
lowest power consumption, the BCM5241 can be put in a power-off state
(<170 mW).
Applications
• Printers, multi-function peripherals • LAN on motherboard
• Game consoles
Auto-Negotiation/
Link Intergrity
Registers
MII
10BASE-T
10BASE-X
• IP Phones
PCS
PCS
Control
Drivers
MGMT
LED
MII
4
4
• DTVs
TXD[3:0]
TXEN
TXC
COL
RXC
CRS
RXDV
RXER
RXD[3:0]
LED1
LED2
MDC
MDIO
Modes
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: info@broadcom.com
Web: www.broadcom.com
• Wireless access points