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دیتاشیت - Altima - Ultra Low Power 10/100 Quad RMII Ethernet Transceiver

شماره قطعه AC104QF
شرح مفصل Ultra Low Power 10/100 Quad RMII Ethernet Transceiver
تولید کننده Altima 
آرم Altima 


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AC104QF شرح
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Altima Communications Inc.
AC104QF
Ultra Low Power 10/100 Quad RMII Ethernet Transceiver
GENERAL DESCRIPTION
The AC104QF is a highly integrated, 3.3V, low
power, four port, 10Base-T/100Base-TX/FX,
Ethernet transceiver implemented in 0.35µm CMOS
technology. Multiple modes of operation including
normal operation, test mode and power saving mode
are available through either hardware or software
control.
Features include MAC interfaces, ENDECs,
Scrambler/Descrambler, and Auto-Negotiation
(ANeg) with support for parallel detection. The
transmitter includes a dual-speed clock synthesizer
that only needs one external clock source. The chip
has built-in wave shaping driver circuit for both
10Mbps and 100Mbps, eliminating the need for an
external hybrid filter. The receiver has an adaptive
equalizer / DC restoration circuit for accurate clock /
data recovery for the 100Base-TX signal. It also
provides an on-chip low pass filer / Squelch circuit
for the 10Base-T signal.
MAC interfaces support four ports of 10/100 RMII.
Media Interfaces support 4 ports of 10/100TX or 3
ports 10/100TX and 1 port 100FX.
FEATURES
4 RMII
RMII 5Volt tolerant and 2.5Volt capable
4 10/100 TX or 3 10/100 TX and 1 100 FX
Full Duplex or Half Duplex
FEFI on 100FX
Very small package
100PQFP
Very low power – TYP < 280mW (/ port)
Cable Detect mode – TYP < 40mW (/ port)
Power Down mo de – TYP < 3.3mW (/ port)
Selectable TX drivers for 1:1 or 1.25:1
transformers for additional power reduction
3.3Volt .35micron CMOS
Fully compliant with
IEEE 802.3 / 802.3u
RMII
UNH test labs
Baseline Wander Compensation
Multi-Function LED outputs
Cable length indicator
Reverse polarity detection and correction with
Register Bit indication – Automatic or Forced
8 programmable interrupts
Diagnostic registers
BLOCK DIAGRAM
Port 0
Port 1
Port 2
Port 3
RMII/MII
Interface
MII SMI
PCS
.Framer
.Carrier Detect
.4B/5B
PMA
.Clock Recov.
.Link Monitor
.Signal Detect
25
MHz
10BASE -T
Control/Status
20
MHz
TP_PMD
100TX
.MLT-3
.BLW
.Stream Cipher
100RX
10TX
10RX
Mux
TXOP/N(3)
RXIP/N(3)
FXTP/N(3)
FXRP/N(3)
RX FLP
MII Serial Management
Interface and Registers
PLLClk Gen.
Test/LED Control
Auto-
25 Negotiation
MHz
PHYAD[4:0]
XTLP/N CKIN TEST[3:0] LED Drivers
TXOP/N(0)
RXIP/N(0)
TXOP/N(1)
RXIP/N(1)
TXOP/N(2)
RXIP/N(2)

قانون اساسیصفحه 37
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