haribabu
Junior Member level 2
LVDS tx at 1.8v supply
Hi ,
I am designing a LVDS tx at 1.8v supply voltage .Since at lower voltages the headroom available for the upper current source is less , i used normal current mirror at the top and cascode current mirror at the bottom . The problem now is i am cing my rise time to be faster than the fall time and these two values differ almost by 30 to 40% of thier absolute values .For example if my trise is 60ps then my tfall is around 100ps . Can anyone suggest some good solution to avoid this issue ?????????
Hi ,
I am designing a LVDS tx at 1.8v supply voltage .Since at lower voltages the headroom available for the upper current source is less , i used normal current mirror at the top and cascode current mirror at the bottom . The problem now is i am cing my rise time to be faster than the fall time and these two values differ almost by 30 to 40% of thier absolute values .For example if my trise is 60ps then my tfall is around 100ps . Can anyone suggest some good solution to avoid this issue ?????????