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LXT908PE Datasheet

  • LXT908PE

  • LAN Transceiver

  • 40頁

  • ETC

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Data Sheet
MARCH 2000
LXT908
Universal 3.3V 10BASE-T and AUI Transceiver
General Description
The LXT908 Universal 10BASE-T and AUI Transceiver is
designed for IEEE 802.3 physical layer applications. It
provides all the active circuitry to interface most standard
802.3 controllers to either the 10BASE-T media or
Attachment Unit Interface (AUI). In addition to standard
10 Mbps Ethernet, the LXT908 also supports full-duplex
operation at 20 Mbps.
LXT908 functions include Manchester encoding/decoding,
receiver squelch and transmit pulse shaping, jabber, link
testing and reversed polarity detection/correction. The
LXT908 can be used to drive either the AUI drop cable or
the 10BASE-T twisted-pair cable with only a simple
isolation transformer. Integrated filters simplify the design
work required for FCC-compliant EMI performance.
The LXT908 is fabricated with an advanced CMOS
process and requires only a single 3.3V power supply.
Revision 1.6
Features
Functional Features
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Improved Filters - Simplifies FCC Compliance
Integrated Manchester Encoder/Decoder
10BASE-T compliant Transceiver
AUI Transceiver
Supports Standard and Full-Duplex Ethernet
Convenience Features
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Automatic/Manual AUI/RJ-45 Selection
Automatic Polarity Correction
SQE Disable/Enable function
Power Down Mode with tristated outputs
Four loopback modes
Single 3.3V operation
Available in 64-pin LQFP and 44-pin PLCC package
Commercial (0 to +70擄C) and
Extended (-40 to +85擄C) temperature range
Applications
鈥?10BASE-T Hub and Switching products
鈥?Computer/workstation 10BASE-T LAN adapter boards
Diagnostic Features
鈥?Four LED Drivers
鈥?AUI/RJ-45 Loopback
LXT908 Block Diagram
AUTOSEL
PAUI
LBK
LI
MODE SELECT LOGIC Controller
Compatibility/
Port Select /
Loopback /
Link test
MD0
MD1
MD2
Select:
PLS Only
or
PLS / MAU
TWISTED PAIR
INTERFACE
PULSE SHAPER
AND FILTER
DO
COLLISION/
POLARITY
DETECT
CORRECT
RC
RX
SLICER
RC
CMOS
TX
AMP
TPOPB
TPOPA
TPONA
TPONB
TCLK
CLKI
CLKO
TEN
TXD
XTAL
OSC
MANCHESTER
ENCODER
WATCHDOG
TIMER
TPIP
TPIN
DROP CABLE
INTERFACE
CD
LEDL
SQUELCH / LINK
DETECT
ECL
TX
AMP
+
-
LPBK
DOP
DON
RXD
RCLK
MANCHESTER
DECODER
DI
RX SLICER
DIN
CI
COLLISION LOGIC
COL
COLLISION
RECEIVER
CIP
CIN
DIP
LEDR LEDT/PDN
LEDC/FDE
DSQE
NTH JAB
PLR
Refer to www.level1.com for most current information.
)

LXT908PE相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    8QLYHUVDO (WKHUQHW 7UDQVFHLYHU
    LVL1
  • 英文版
    8QLYHUVDO (WKHUQHW 7UDQVFHLYHU
    LVL1 [Leve...
  • 英文版
    Ethernet Twisted-Pair Media Attachment Unit
    LVL1
  • 英文版
    Ethernet Twisted-Pair Media Attachment Unit
    LVL1 [Leve...
  • 英文版
    Ethernet Interface Adapter with EnDec and AUI
    LVL1
  • 英文版
    Ethernet Interface Adapter with EnDec and AUI
    LVL1 [Leve...
  • 英文版
    Universal Ethernet Interface Adapter
    LVL1
  • 英文版
    Universal Ethernet Interface Adapter
    LVL1 [Leve...
  • 英文版
    Ethernet Twisted-Pair/Coax Adapter
    LVL1
  • 英文版
    Ethernet Twisted-Pair/Coax Adapter
    LVL1 [Leve...
  • 英文版
    Level One [8QLYHUVDO (WKHUQHW 7UDQVFHLYHU]
    LVL1
  • 英文版
    Universal Ethernet Interface Adapter
    LVL1
  • 英文版
    Universal Ethernet Interface Adapter
    LVL1 [Leve...
  • 英文版
    Flexible Quad Ethernet Repeater
    LVL1
  • 英文版
    Flexible Quad Ethernet Repeater
    LVL1 [Leve...
  • 英文版
    Simple Quad Ethernet Repeater
    LVL1
  • 英文版
    Simple Quad Ethernet Repeater
    LVL1 [Leve...
  • 英文版
    Multi-Port Hub Repeaters for Managed 10BASE-T Applications
    LVL1
  • 英文版
    Multi-Port Hub Repeaters for Managed 10BASE-T Applications
    LVL1 [Leve...
  • 英文版
    Multi-Port Hub Repeaters for Managed 10BASE-T Applications
    LVL1

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