AC104QF Datasheet PDF - Altima
Part Number | AC104QF | |
Description | Ultra Low Power 10/100 Quad RMII Ethernet Transceiver | |
Manufacturers | Altima | |
Logo | ||
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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)
|
|
AC104QF
Ultra Low Power 10/100 Quad RMII Ethernet Transceiver
PIN DIAGRAM - AC104QF
RX_ER(0)
CRS_DV(0)
CGND
TXD[1](0)
TXD[0](0)
TX_EN(0)
OGND
LEDDPX(1) / PHYAD[4]
LEDACT(1) / PHYAD[3]
LEDSPD(1) / PHYAD[2]
LEDDPX(0) / FX_DIS
LEDACT(0)
LEDSPD(0) / TP125
INTR
RST*
GAGND
IBREF
GAVDD
GAVDD
AVDD
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
AC104QF
50 TXD[1](3)
49 CGND
48 CRS_DV(3)
47 RX_ER(3) / PHYAD_ST
46 RXD[0](3)
45 RXD[1](3)
44 OVDD
43 LEDSPD(2) / FORCE100
42 LEDACT(2)
41 LEDDPX(2)
40 LEDSPD(3) / BURN_IN*
39 LEDACT(3) / ANEGA
38 LEDDPX(3) / SCRAM_EN
37 FXTN(3)
36 FXTP(3)
35 FXRN(3) / TST[3]
34 FXRP(3) / TST[2]
33 SDN(3) / TST[1]
32 SDP(3) / TST[0]
31 AVDD
2055 Gateway Parkway Suite 700, San Jose, CA 95110 (408) 453-3700 (www.altimacom.com)
Altima Communications Inc. reserves the right to make changes to this document without notice.
Document Revision 3.2
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