Datasheet

KSZ8041TL/FTL/MLL
DS00002436B-page 4  2017 Microchip Technology Inc.
1.0 INTRODUCTION
1.1 General Description
The KSZ8041TL is a single supply 10BASE-T/100BASE-TX Physical Layer Transceiver that provides MII/RMII/SMII
interfaces to transmit and receive data. It utilizes a unique mixed-signal design to extend signaling distance while reduc-
ing power consumption.
HP Auto MDI/MDI-X provides the most robust solution for eliminating the need to differentiate between crossover and
straight-through cables.
LinkMD
®
TDR-based cable diagnostics permit identification of faulty copper cabling.
The KSZ8041TL represents a new level of features and performance and is an ideal choice of physical layer transceiver
for 10BASE-T/100BASE-TX applications.
The KSZ8041FTL has all the identical rich features of the KSZ8041TL plus 100BASE-FX support for fiber and media
converter applications.
The KSZ8041MLL is the basic 10BASE-T/100BASE-TX physical layer transceiver version with MII support.
The KSZ8041TL and KSZ8041FTL are available in 48-pin, lead-free TQFP packages. The KSZ8041MLL is provided in
the 48-pin, lead-free LQFP package.
FIGURE 1-1: SYSTEM BLOCK DIAGRAM, KSZ8041TL/FTL
10/100
Pulse
Shaper
NRZ/NRZI
MLT3 Encoder
Parallel /Serial
Manchester Encoder
4B/5B Encoder
Scrambler
Parallel /Serial
Transmitter
TX+
TX-
Adaptive EQ
Base Line
Wander Correction
MLT3 Decoder
NRZI/NRZ
Clock
Recovery
4B/5B Decoder
Descrambler
Serial /Parallel
Auto
Negotiation
10BASE-T
Receiver
Manchester Decoder
Serial /Parallel
PLL
LED
Driver
MII/RMII/SMII
Registers
and
Controller
Interface
RX-
RX+
XI
XO
LED1
LED0
Power Down
Power Saving
TXD3
TXD0
TXD1
TXD2
RXD3
TXEN
TXC
MDC
MDIO
RXER
RXD0
RXD1
RXD2
REXT
RXC
RXDV
CRS
COL
RST#
INTRP
100BASE-FX
Signal Detect
(KSZ8041FTL Only)
FXSD/
FXEN