A C 1 0 1 - Q F / T F F E A T U R E S
MII/
RMII
Connector
RJ45
Magnetics
Module
AC101-QF/TF
10/100BASE-TX
Single-Channel
PHY Transceiver
Media
Access
Controller
MAC
CPU
SRAM
System Bus
AC101-QF/TF Typical Design Implementation
Includes basic Ethernet connectivity for cost-sensitive
applications.
Features low power and intelligent power management.
Increased active working time
Prolonged battery life in active standby
Increased reliability
Targets embedded microprocessor applications.
Wide variety of interfaces for legacy and next generation
microprocessors
Able to operate in industrial temperature and voltage
environments
Multiple interrupts for system design flexibility
Package options simplify board-level design.
S U M M A R Y O F B E N E F I T S
10/100BASE-TX SINGLE-CHANNEL ALTI-PHY
TM
TRANSCEIVER
PRODUCT
PRODUCT
Brief
Brief
A C 1 0 1 - Q F / T F
Cost optimized, full custom circuit design
10BASE-T/100BASE-TX/FX IEEE 802.3u Fast
Ethernet transceiver
Power consumption: <280 mW
Unique energy detection circuit to enable intelligent
power management
Selectable TX drivers for 1:1 or 1.25:1 transformers to
enable additional power reduction
Legacy interface support
10BASE-T 7-wire
10M symbol
100M symbol
Industrial temperature range (-40 to 85C)
+/-10% voltage tolerance
Supports eight interrupts
100-pin PQFP or 80-pin TQFP
ALTIMA COMMUNICATIONS, INC. CONFIDENTIAL
Cost-Effective, Lowest Power 3.3V Fast Ethernet PHY
Broadcom's Alti-PHY technology targets cost-sensitive
applications where basic Ethernet functionality is required. The
AC101-QF/TF provides all of the required features of a fully
compliant IEEE 802.3u 10/100BASE-TX/FX transceiver. A full
custom circuit design optimizes the cost of the AC101-QF/TF,
making it particularly appealing for value brand and
small/medium business applications.
With a power dissipation of 280 mW, the AC101-QF/TF is the
industry's lowest power Fast Ethernet PHY. In addition, the
AC101-QF/TF has several intelligent power-down states that
conserve power, yet allows products based on it to turn on
automatically when needed. The AC101-QF/TF 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,
such as laptop LAN card adapters. The AC101-QF/TF allows
PCMCIA or CardBus adapters to remain plugged in and draw
virtually no energy even if the client is no longer connected to the
network. Because most laptop users do not remove their LAN PC
cards when working remotely, this feature results in a noticeably
extended battery life for laptop computer users. For lowest power
consumption, the AC101-QF/TF can be put in a power-down
state (<3.3 mW).
With three different physical media interfaces, four different
system interfaces, and multiple packages available, the AC101-
QF/TF provides significant system design flexibility. These
numerous options allow the AC101-QF/TF to be designed into
many different applications, reducing the number of separate
transceivers needed to meet multiple design requirements.
For the system/MAC interface, seamless support is provided for
the Motorola QUICC products, such as the MPC68360 or the
MPC860T families, as well as a variety of other embedded
microprocessors. For the physical media connectivity, support is
provided for 10BASE-T, 100BASE-TX, and 100BASE-FX.
Applications
Applications for the AC101-QF/TF that take advantage of its
cost-optimized design and low power include:
PCMCIA/CardBus cards
Set-top boxes
LAN on Motherboard
Print servers
IP phones
Wireless access points
Cable modems
Embedded telecom
A C 1 0 1 - Q F / T F O V E R V I E W
MII Data
MII Serial
Managment
10BASE-T
7-Pin Interface
Interf
ace
PCS
Framer
Carrier Detect
4B/5B
MII Serial Management
Interface Registers
10BASE-T
PMA
Clock Recov
Link Monitor
Signal Detect
Control/Status
20 MHz
25 MHz
PLL CLK
Test/LED Control
TP_PMD
MLT3
BLW
Stream Cipher
10TX
10RX
25 MHz
RX
FLP
100TX
100RX
MUX
Auto-
Negotiation
TPOUT
TPIN
FXOUT
FXIN
2003 by ALTIMA COMMUNICATIONS, INC.
A fully owned subsidiary of Broadcom Corporation. All rights reserved.
AC101QF/TF-PB03-R-06.13.03
ALTIMA COMMUNICATIONS, INC.
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
ALTIMA COMMUNICATIONS, INC. CONFIDENTIAL
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