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ML6695

Micro Linear
Part Number ML6695
Manufacturer Micro Linear
Description 100BASE-X Fiber Physical Layer With 5-bit Interface
Published May 7, 2005
Detailed Description December 1998 PRELIMINARY ML6695 100BASE-X Fiber Physical Layer With 5-bit Interface GENERAL DESCRIPTION The ML6695 imp...
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ML6695
ML6695

Overview
December 1998 PRELIMINARY ML6695 100BASE-X Fiber Physical Layer With 5-bit Interface GENERAL DESCRIPTION The ML6695 implements the physical layer of the Fast Ethernet 100BASE-X standard for fiber media.
The device provides the 5-bit (or symbol) interface for interface to upper-layer silicon.
The ML6695 integrates the data quantizer and the LED driver, allowing the use of low cost optical PMD components.
The ML6695 includes 125MHz clock recovery/clock generation, an LED driver, and a data quantizer (post amplifier).
The device also offers a power down mode which results in total power consumption of less than 20mA.
The ML6695 is suitable for the current 100BASE-FX IEEE 803.
2u standard defined using 1300nm optics, as well as for the proposed 100BASE-SX standard defined using lower cost 820nm optics.
FEATURES s s s s s s 100BASE-FX physical layer with 5-bit interface Optimal 100BASE-SX solution (draft standard) Integrated data quantizer (post-amplifier) Integrated LED driver 125MHz clock generation and recovery Power-down mode BLOCK DIAGRAM LPBK TXC CLOCK SYNTHESIZER PWRDN IOUT TSM4 TSM3 TSM2 TSM1 TSM0 SERIALIZER NRZ TO NRZI ENCODER LED DRIVER IOUT RTSET SDO SIGNAL DETECT RXC RSM4 RSM3 RSM2 RSM1 RSM0 DESERIALIZER CLOCK & DATA RECOVERY NRZI TO NRZ DECODER DATA QUANTIZER (POST AMPLIFIER) VIN– VIN+ CAPB CAPDC 1 ML6695 PIN CONFIGURATION ML6695 44-Pin PLCC (Q44) TSM0 TSM1 TSM2 TSM3 TSM4 AGND1 TXC AVCC1 LPBK AVCC2 AGND2 6 5 4 3 2 1 44 43 42 41 40 PWRDN RSM4 RSM3 DGND1 RSM2 DVCC1 RSM1 DGND2 RSM0 RXC DGND3 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 39 38 37 36 35 34 33 32 31 30 29 IOUT IOUT AGND3 RTSET AVCC3A AVCC3B AVCC4A AGND4A AVCC4B VIN+ VIN– PIN DESCRIPTION PIN NAME FUNCTION PIN NAME FUNCTION 1 2 A GND 1 TSM4 Analog ground Transmit data TTL inputs.
TSM 0-4 inputs accept TX data symbols from the MII.
Data appearing at TSM 0-4 are clocked into the ML6695 on the rising edge of TXCLK .
Transmit data TTL inputs.
TSM 0-4 inputs accept TX dat...


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