Datasheet

DP83848H PHYTER® Mini - Extreme Single 10/100 Ethernet Transceiver
© 2008 National Semiconductor Corporation
www.national.com
DP83848H PHYTER
®
Mini - Extreme Single 10/100 Ethernet
Transceiver
May 2008
Features
• Low-power 3.3V, 0.18µm CMOS technology
• Auto-MDIX for 10/100 Mb/s
• Energy Detection Mode
• 3.3V MAC Interface
• RMII Rev. 1.2 Interface (configurable)
• MII Interface and MII serial management interface (MDC
and MDIO)
• IEEE 802.3u Auto-Negotiation and Parallel Detection
• IEEE 802.3u ENDEC, 10BASE-T transceivers and filters
• IEEE 802.3u PCS, 100BASE-TX transceivers and filters
• Integrated ANSI X3.263 compliant TP-PMD physical sub-
layer with adaptive equalization and Baseline Wander
compensation
• Error-free Operation up to 137 meters
• ESD protection - 4KV Human body model
• Configurable LED for link and activity
• Supports system clock from oscillator
• Single register access for complete PHY status
• 10/100 Mb/s packet BIST (Built in Self Test)
• 40 pin LLP package (6mm) x (6mm) x (0.8mm)
Applications
• Peripheral devices
• Mobile devices
• Factory and building automation
• Basestations
General Description
The DP83848H PHYTER® Mini Extreme addresses the
high quality, high reliability and small form factor required
for rugged operation in space sensitive and thermally
demanding environments. This device is ideally suited for
industrial and motor control, building/factory automation,
automotive and test equipment applications.
The DP83848H is designed from ground up for extreme
temperature performance, with a thermally efficient pack-
age ensuring reliable operation over an operating range of
-40C to 125C. Rigorously tested at both low temperature
and high temperature extremes, the device is ideal for out-
door environments and demanding factory floor conditions.
The device offers performance beyond the IEEE specifica-
tions, with superior interoperability and industry leading
performance. The DP83848H offers Auto-MDIX to remove
cabling complications, superior ESD protection of greater
than 4KV HBM for greater reliability, and superior cable
length operation (greater than 137m) to provide a high
level of performance in all applications.
A number of system cost-reducing features have been
integrated that are not commonly found in other Ethernet
Physical layer products (PHYs). For example, the
DP83848H offers a 25MHz clock out that eliminates the
need and hence the space and cost, of an additional
Media Access Control (MAC) clock source component. In
addition, both MII and RMII are supported ensuring ease
and flexibility of design.
DP83848H is offered in a small 6mm x 6mm LLP 40-pin
package.
System Diagram
PHYTER
®
is a registered trademark of National Semiconductor Corporation.
Status
10BASE-T
or
100BASE-TX
MII/RMII
Typical Ethernet Application
Magnetics
RJ-45
Clock
LED
DP83848H
10/100 Ethernet
Transceiver
Media Access Controller
MPU/CPU
Source