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ML4667

Micro Linear
Part Number ML4667
Manufacturer Micro Linear
Description Low Power 10BASE-FL Transceiver
Published May 7, 2005
Detailed Description March 1997 ML4667 Low Power 10BASE-FL Transceiver GENERAL DESCRIPTION The ML4667 is a low power high output current pin...
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ML4667
ML4667


Overview
March 1997 ML4667 Low Power 10BASE-FL Transceiver GENERAL DESCRIPTION The ML4667 is a low power high output current pin compatible version of the industry standard ML4662.
The ML4667 10Base-FL transceiver combined with either the ML4622 or ML4624 fiber optic quantizer provide all functionality required to implement both an internal and external IEEE 802.
3 10Base-FL MAU interface that allows it to be directly connected to industry standard manchester encoder/decoder chips or and AUI cable.
The ML4667 provides a highly integrated solution that requires a minimal number of external components.
The ML4667 is compliant to the IEEE 802.
3 10Base-FL standard.
The transmitter offers a 100mA maximum current driven output that directly drives a fiber optic LED transmitter.
Jabber, a 1MHz idle signal, and SQE Test are fully integrated onto the chip.
The receiver accepts and ECL level input from the ML4622 or ML4624 fiber optic quantizer.
The 1MHz idle signal is removed and the AUI output is activated when the receive squelch criteria is exceeded.
A Link Monitor function is also provided for low light detection.
FEATURES s s s s s s s s Combined with the ML4622 or ML4624, offers a complete implementation of an 10Base-FL Medium Attachment Unit (MAU) Pin compatible with the ML4662 Transceiver Incorporates an AU interface for use in an external MAU or an internal MAU 100mA max LED output current drive Single +5 volt supply ±10% No crystal or clock required On-chip Jabber, 1MHz idle, and SQE Test with enable/ disable option Five network status LED outputs BLOCK DIAGRAM 4 17 12 +5V 19 SQEN/JABD 10 11 Tx+ Tx– AUI RECEIVER VCCTx (+5V) RTSET NC/PEAK TxOUT FIBER OPTIC LED DRIVER 18 Tx SQUELCH 1MHz IDLE SIGNAL JABBER LMONIN SQE COL+ COL– AUI DRIVER 10MHz GATED OSCILLATOR RECEIVE SQUELCH FREQUENCY RxIN+ RxIN– 22 2 3 LINE RECEIVER Tx Rx LED DRIVERS 26 25 6 7 Rx+ Rx– AUI DRIVER LOOPBACK MUX GND 21 VCC (+5V) 8 RRSET 13 LBDIS 23 1 CLSN 28 JAB RCV 16 XMT 15 LMON...


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