* highpass notch
v1 vin 0 dc 0 ac 1 sin 0 1V 1kHz
c1 vin vout 62n
* c2 for 0.555Hz zero
c2 vout vc2l 47u
* c2 for 0.75Hz zero
*c2 vout vc2l 24.5035u
*l1 vc2l 0 1.74617k
xl1 vc2l 0 lgic
r1 vout 0 100k
* gic active inductor 1.74617kH
.subckt lgic a b
r1l a n12 42.2k
r2l n12 n23 42.2k
r3l n23 n34 42.2k
c4l n34 n45 1u
* trim r5l1 to adjust zero
r5l n45 b 41.3784k
eu1 n34 0 a n23 100k
eu2 n12 0 n45 n23 100k
.ends
.end
.control
ac dec 20 0.01 100
plot db(vout)
plot vp(vout)
ac dec 10000 0.5 0.75
plot db(vout)
.endc