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ONET4201LD

Other Parts Discussed in Thread: ONET4201LD

Hi,

Using ONET4201LD for FSO applications to drive Laser Diode(LD). ONET4201LD works fine with 125Mhz (Ethernet 100M) but does not work for 1.25Ghz(Ethernet 1000M).

LD which is used here has PD reversal, so connecting to the ONET4201LD will be in wrong way but in this configuration, 125Mhz works fine. When I try to disable the PD by removing the APCSET resistor and adding a 100KE pull up resistor, ONET4201LD7446.SCHEMATIC1 _ PAGE22 - LD.pdf does not drive for any speed.

Could I get help on this plz ?

Note :Attached the schematics.

-Sudarshan