Can I get the output drive capability information of HMC914 ?
I am struggling with the circuit as attached since HMC914's are dying
after short time of operation. As can be seen from the attached schematic,
HMC914 is driving CML output to CML receiver. The receiver device has
50 ohm pull-up resistor to VCC3V3 power. These output and input pins
are directly connected. As a result, the output transistor of HMC914 will
experience 25ohm pull-up to the 3.3V power. If HMC914 tries to swing
0.5V, the output transistor should sink 20mA (i=V/R=0.5/25=0.02).
Is 20mA allowed current output for HMC914 ?
I cannot find any information about the rated current sink from the datasheet.
Any advice will be appreciated.
Thanks in advance.