adm6995 ETC-unknow, adm6995 Datasheet - Page 18

• Manufacturer Part Number: adm6995
• Description: Port 10/100 Mb/s Single Chip Ethiernet Switch Controller
• Manufacturer: ETC-unknow

ADM6995L
ADMtek Inc.
3.4.1
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High performance A/D converter with 125Mhz sampling rate converts signals received
on RXP/RXN pins to 6 bits data streams; besides it possess auto-gain-control capability
that will further improve receive performance especially under long cable or harsh
detrimental signal integrity. Due to high pass characteristic on transformer, built in base-
line-wander correcting circuit will cancel it out and restore its DC level.
RXD[1:0]
TXD[1:0]
CRSDV
TXEN
A/D Converter
Adaptive Equalizer and timing recovery module
NRZI/NRZ and serial/parallel decoder
De-scrambler
Symbol alignment block
Symbol Decoder
Collision Detect Block
Carrier sense Block
Stream decoder block
A/D Converter
RXD[3:0]
BP_ALIGN
BP_4B5B
TXCLK
RXDV
RXER
TXEN
TXER
CRS
COL
TXD[3:0]
BP_4B5B
DECODER
RX STATE
MACHINE
TX STATE
MACHINE
BP_SCR
4B/5B
BP_ALIGN
BP_DSCR
100BASE-X RECEIVER
MACHINE
100BASE-X TRANSMITTER
MLT-3
STATE
DRIVER
DRIVER
10/100
FIBER
OPTIC
TX
Function Description
SDP
FOTX+
FOTX-
RXN
RXP
TXP
TXN
3-2