out = Pin(C=ind.p, xoff=100, kind='out', name='out', w=2)
out_wire = Wire([ind.p, out.C])
fb = shift_y(R1.n, 100)
Rt = Resistor(n=with_x(fb, out_wire.m), orient='v')
Rb = Resistor(p=with_x(fb, out_wire.m), orient='v')
Wire([Rt.p, with_y(Rt.p, out.C)])
Ground(C=Rb.n)
RG = Box(o=C1.n, yoff=175)
rg2cmp = Wire([RG.o, cmp.ni], kind='-|-')
Dot(C=with_y(rg2cmp.m, fb), color='white')
Wire([
shift_x(RG.C, -30),
shift(RG.C, -25, 25),
shift(RG.C, 25, -25),
shift_x(RG.C, 30)
])
Label(C=RG.S, loc='s', name='ramp_gen')
Wire([R1.n, fb, Rt.n], kind='|-')
en = Pin(C=lvl.C, yoff=250, kind='in', name='en', w=2)
Wire([en.C, shift_x(en.C, 50)])
avss = Pin(C=en.C, yoff=50, kind='in', name='avss', w=2)
Wire([avss.C, shift_x(avss.C, 50)])
except Error as e:
e.report()
except OSError as e:
error(os_error(e))
Wire([sh.o, sum.W])
Wire([sum.E, amp.i])
Wire([shift_x(i.t, 50), adc.i], kind='|-')
Wire([adc.o, dac.i])
Wire([dac.o, sum.S], kind='-|')
# Stages 2, 3, 4
s2 = Box(N=dac.S, off=(25, 75), name='Stage 2')
s3 = Box(W=s2.E, xoff=50, name='Stage 3')
s4 = Box(W=s3.E, xoff=50, name='4 bit', value='Flash')
Wire([s2.o, s3.i])
Wire([s3.o, s4.i])
Wire([
amp.o,
shift_x(amp.o, 50),
shift(s1.SE, 25, 25),
shift(s2.NW, -25, -25),
shift_x(s2.W, -25),
s2.W,
])
# Error correction
ec = Box(NW=s2.SW,
off=(-75, 50),
name='Digital Error Correction',
w=9,
h=1)
out = Pin(t=shift_x(ec.o, 50), kind='out', name='out', w=2)
Wire([ec.o, out.t])
Label(C=shift_x(ec.E, 25), kind='slash', loc='s', name='10')
# Generates schematic as an .svg file.
# Requires svg_schematic:
# git clone https://github.com/KenKundert/svg_schematic.git
# cd svg-schematic
# python3 setup.py --user --upgrade install
from svg_schematic import (Schematic, shift, shift_x, shift_y, midpoint, Box,
Ground, Label, Source, Wire)
with Schematic(filename="msnm.svg"):
v = Source(kind='noise', value='S(f)', orient='v')
Ground(C=v.n, orient='v')
m = Source(C=shift_x(v.p, 200), kind='mult')
Wire([v.p, m.W])
wm = Wire([m.S, shift_y(m.S, 25)])
Label(C=wm.e, loc='S', name='m(t)')
Label(C=midpoint(v.p, m.W), loc='N', name='stationary noise')
wo = Wire([m.E, shift_x(m.E, 210)])
Label(C=wo.e, kind='arrow', loc='NW', name='cyclostationary noise')
Box(C=shift(v.C, 100, -3),
w=5.5,
h=3.2,
line_width=0.5,
background='none',
stroke_dasharray="4 2")
Label,
Source,
Wire,
midpoint,
shift,
shift_y,
)
from inform import Error, error, os_error
try:
with Schematic(filename="oscillator.svg", background='none', line_width=2):
# resonator
vdd = Label(loc='n', nudge=10, name=r'$V_{\rm dd}$')
Wire([vdd.C, shift_y(vdd.C, 25)])
ll = Inductor(p=shift(vdd.C, -125, 25),
orient='v',
name=r'$\frac{1}{2} L$')
lr = Inductor(p=shift(vdd.C, 125, 25),
orient='v|',
name=r'$\frac{1}{2} L$')
c = Capacitor(C=midpoint(ll.n, lr.n), orient='h', name='$C$')
Wire([ll.p, lr.p])
Wire([ll.n, c.p])
Wire([lr.n, c.n])
# gain stage
ml = MOS(d=ll.n, yoff=75, orient='|')
mr = MOS(d=lr.n, yoff=75, orient='')
Wire([ll.n, ml.d])
Wire([lr.n, mr.d])