Functional Description:
The AC104Z-QF is a highly integrated, low power, four port 10/100TX/FX
Ethernet Transceiver. All four ports are configurable to either 10/100 TX or
100 FX. Functions include integrated SMII/RMII, ENDEC, Scrambler/De-
Scrambler and fully compliant Auto-Negotiation. On chip filtering and
wave shaping eliminate the need for external hybrid filters.
Silicon Solutions Empowering the NetTM
2055 Gateway Parkway Suite 700
San Jose, CA95110
(408) 453-3700
(www.altimacom.com)
AC104Z-QF
AC104Z-QF
Quad Ultra Low Power
10/100 Ethernet
Transceiver
January 20, 2000
Customer / Application:
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High Density switch
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Multi-port switched set top box
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Low power/ low cost stand alone switch
Available Collateral:
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AC104Z-QF data sheet
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Verilog and Spice models
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Layout Guide and App Notes
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Demo Boards & Schematics
Compelling evidence:
The AC104Z-QF provides all of the required features of a four port
SMII/RMII compliant 10/100TX/FX Ethernet Transceiver. The AC104Z-QF
has the smallest footprint and the lowest power consumption, on a per
port basis, of any other solution; single, quad, hex or octal. When all sys-
tem costs are considered, power, heat, components and real estate, the
AC104Z-QF will provide the lowest overall system cost and most reliable
design.
Availability:
Samples: Now Production Q1/00
Features:
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4 ports - SMII or 4 ports - RMII
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4 ports - 10 Base-T / 100 Base-
TX / 100 Base-FX
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Full Duplex or Half Duplex
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FEFI on 100FX
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Very small package - 128PQFP
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280 sq. mm footprint
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Very low power - TYP 280mW
(Per 100 Base-TX Port)
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Selectable transmit drivers for 1:1
or 1.25:1 transformers enable
additional power reduction
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Cable Detect mode - TYP <40mW
(Per Port)
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Power Down mode - TYP <3.3mW
(Per Port)
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Fully compliant with IEEE 802.3 /
802.3u
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SMII/RMII
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Unique scrambler seed for each
port to reduce emissions
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Baseline Wander Compensation
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Reverse polarity detection and
correction
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R/W Register Bit indication
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Easy, intuitive LED outputs
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Cable length indicator
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8 interrupts per port
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16 bit diagnostic register
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JTAG Boundary Scan
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Programmable FIFO depth
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Programmable SMII clock skew
AC104Z-QF
With three different physical media interfaces and
two different system interfaces, the AC104Z Ultra
Low Power Quad 10/100Mbps Ethernet transceiver
has been designed to be the most flexible and cost
effective Ethernet transceiver on the market today.
These numerous options allow the AC104Z to be
designed into many different applications, reducing
the number of separate transceivers necessary to
meet multiple design requirements.
For System/MAC interface, support is provided for:
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10/100 SMII - as either forced, parallel detected
or negotiated - full or half duplex
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10/100 RMII - as either forced, parallel detected
or negotiated - full or half duplex
When running in SMII or RMII mode, the four
10/100 PHYs run entirely independent of one
another allowing for 10Mbps or 100Mbps, full or
half duplex, TX or FX , on a per port basis. (10M
FX is not supported.)
JTAG Boundary Scan diagnostic capabilities.
For the physical media connectivity, support is provided for:
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10Base-T - as either forced, parallel detected or negotiated 10Mbps - full or half duplex
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100Base-TX - as either forced, parallel detected or negotiated 100Mbps - full or half duplex
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100Base FX. - forced 100Mbps - full or half duplex
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.
Typical implementation of 10 Base-Tor 10/100 TX physical layer connections.
Please refer to the latest documentation to determine correct component values.
Typical implementation of 100 FX physical layer connections.
Please refer to the latest documentation to determine correct component values.
TXD
RXD
TXD
RXD
TXD
RXD
TXD
RXD
REFCLK
SYNC
MDC
MDIO
TXD 1:0
TX_EN
TXD 1:0
CRS_DV
RX_ER
TXD 1:0
TX_EN
TXD 1:0
CRS_DV
RX_ER
TXD 1:0
TX_EN
TXD 1:0
RX_ER
TXD 1:0
TX_EN
TXD 1:0
CRS_DV
RX_ER
REFCLK
MDC
MDIO
CRS_DV
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