components as shown in parenthesis ( see
parts list) C3 = 1uF (1K); C4 = 0.1uF
(104); C5 = 0.01uF (.01); C6 =
(102) if uncertain use your multimeter to
measure capacitance and label
accordingly). Bend
0.001uF
leads at the bottom of
the PCB to contain capacitors, solder, and
a
s of
ill
ot
ged after short usage.
rratic signal patterns will result from incorrect
lacement of resistors.
Operationa
1.
ameco
ffer if
p the
a
e calibration of
sine wave output wave forms and
st.
2.
tion 3 - 100Hz to
0 kHz range; position 4: 1 kHz to
2.2
wave shape - open for triangle
2.3
eter)
DC offset, adjust for 0VDC
2.4
meter)
distortion, adjust with R11
2.5
y,
etry. Adjust
with R10 (1k ohm
2.6
plitude,
sets amplitude of sine wave or
2.7
cy of output signal
approximately 1:100 on each
3.
6 are
clip excess leads.
Final Assembly Checkout:
Do not attempt to apply power to the board until
final check has been made to verify correctnes
all assembled components. Component IC1 will
be damaged if placed incorrectly. Board w
malfunction if capacitors C1, C2, and C7 are n
properly placed on the PCB for polarity.
Capacitors will be dama
E
p
l Considerations:
The schematic diagram (see
schematic) shows the components
supplied with the JE2206 (J
Part Number 20685) and noted on
the same page the external
components such as R13 (1M ohm)
potentiometer for frequency
adjustment, S1 (rotary switch) for
frequency range selection), S2
(toggle switch) for wave selection,
and R12 (50k) potentiometer for
amplitude (connection will di
using a single supply operation -
see figure 3 and split supply
operation - see figure 4). Other
components such as power supply
and enclosure are to be supplied by
the user. In addition, setting u
function generator kit will require
digital counter for frequency
calibration and a general purpose
oscilloscope for th
amplitude adju
The controls:
2.1 S1 (rotary switch external-
frequency range) position 1: 1 to
100Hz range; position 2: 10Hz to 1
kHz range; posi
1
100 kHz range
S2 (toggle switch external)
wave; closed for sine wave
R9 (1M ohm potentiom
output-offset voltage
R10 (1k ohm potentio
sine wave distortion.
Minimizes harmonic
(25k ohm potentiometer)
R11 (25k ohm potentiometer)
sine wave symmetr
optimizes symm
potentiometer)
R12 (50k ohm potentiometer,
panel mount external
component) output am
triangle wave output
R13 (1M ohm potentiometer
panel mount external
component) frequency, varies
frequen
range
Capacitors C3, C4, C5, and C
+/-5% mylar capacitors as
