Jameco BenchPro JE2206 Manuale utente

Jameco Part Number 20685

(JE2206)

Function Generator Kit

y modulated. The

it is intended to be incorporated into a higher

sembly of the user's own design that adds power

sup ,

•ng from either a +12VDC or +/-

•ncy capability: +1 to 100KHz in 4

•

ter

+/- for

•to

•ncy modulation capability

•lation capability,

er determined by Exar 2206

functi erato

Component

Part er tion Qty.

GENERAL DESCRIPTION

The 20685 (JE2206 Function Generator Kit) is a

single-board assembly incorporating the basic

circuit necessary for a sine, square, and triangle

wave generator, of high stability and accuracy that

may be amplitude and frequenc

as ply controls, and housing.

Operati

6VDC @ 15mA power source

Freque

ranges

Frequency variability: 1:100 within each

range

•Frequency accuracy dependent upon

timing capacitors and user's potentiome

(calibration by user)

•Sine / triangle output amplitudes variable,

0 to 6Vp-p for sine and 0V to V

triangle, with 600Ωsource impedance

Maximum sine wave distortion: 1% 10

10kHz; and 3% 10 to 100kHz

Linear freque

range dependent on center frequency

Linear amplitude modu

range

•Oth 55dB

criteria as

on gen r IC

Descrip

Reference Numb

IC1 34972 IC Function Generator

XR2206 1

C1, C2, C7 10882 3Electrolytic Capacitor,

AXIAL, 10uF @ 50V

C3 27001 Mylar capacitor, non-

polarized, 1uF @ 100V

(1K)

C4 26956 Mylar capacitor, non-

polarized, 0.1uF @

100V (104)

C5 26884 Mylar capacitor, non-

polarized, 0.01uF @

100V (0.01)

C6 26833 Mylar capacitor, non-polarized, 0.001uF @

100V (102)

R1 691219 1/4W Resistor, 30k

(orange-black-orang

e) 1

R2 691340 1/4W Resistor, 100k

(brown-black-yellow) 1

R3, R7 690865 1/4W Resistor, 1k

(brown-black-red) 2

R4 691091 1/4W Resistor, 9.1k

(white-brown-red) 1

R5, R6 691032 1/4W Resistor, 5.1k

(green-brown-red) 2

R8 690734

1/4W Resistor, 300Ω

(orange-black-brown) 1

R9 42981 Potentiometer, 1M (105) 1

R10 42964 Potentiometer, 1k (102) 1

R11 )35511 Potentiometer, 25k (253 1

134341 22AWG black hook up

wire 1

2278583 JE2206-1 PC Board 1

Assembly Instructions 1

External Com tsponen

R12 l255434 Potentiometer, 50k Pane

Mount 1

R13 255469 Potentiometer, 1M Panel

Mount 1

S1 101574 2P6P 1Rotary switch, 1 layer,

S2 22833 SPDT mini toggle 1

switch, MTS-102-F1

Recommended power supply kit if using

split power supply configuration: a

5) -Jameco Part Number 20626 (JE21

djustable power supply kit.A

Ass

1) ts list

ltimeter

ure capacitance, resistance,

ual

mall

liers;

driver; multimeter for

measuring voltage, capacitance, and

Sol

1) the crack between the

2) d will

ell as damage the

4) Keep iron tip clean by wiping iron across

water dampened sponge -- frequently.

EAD ALL INSTRUCTIONS BEFORE

embly Preparation and Procedures:

Important:identify all parts on par

before proceeding. If you are having

difficulties in identifying the parts

visually, suggest that you use a mu

that can meas

voltage. Measure the components

accordingly.

Suggestion:simulate board assembly by

placing the components in their actual

place on the picture assembly, then

transfer the components to the act

board for soldering assembly. (see figure

1 for scanned board assembly)

Tools required:small soldering iron 27W

to 35W; resin core solder (0.03" diameter

with SN60 or SN63); small sponge (water

dampened) for cleaning solder tip; s

wire cutter/stripper; small long nose p

small screw

resistance

dering Tips:

Feed the solder to

iron tip and the solder pad next to the

component lead.

Leaving the iron tip too long on a pa

cause the pad to life, as w

component. Allow approximately 2

seconds per solder joint.

3) Using too much solder can cause the

solder to bridge across traces and pads.

Assembly Instructions:

STARTING!!!

Before assembly, determine if a split power supply

or a single power supply will be used, as

placement of R12 potentiometer will change (

an addition of a jumper wire across the output

with

oltage nodes - please see figure 3 for single

lit power supply.

Pri

1) by placing the

he bottom of the PCB

3) e

ocated

4) sistors)

djustment knob aligned to

d leads at the bottom of the PCB to

power supply and figure 4 for sp

nted wiring board assembly

Start the board assembly

printed circuit board to the position sho

on figure 1 and figure 2

Insert resistors R1 through R8 into the

board. Observe the color code of each

resistor as you install them (color code is

stated in the parts list for each resistor. If

uncertain, measure the resistors with your

multimeter and label them accordingly).

Bend the leads at t

board to contain the resistors, solder an

clip excess leads.

Insert IC1 into board. Be sure that th

notch at the end of the IC is l

properly as shown for pin number 1

identification (see figure 2).

Insert potentiometers (adjustable re

R9, R10, and R11 as shown (see figure 2

Resistors R9 and R10 will require

spreading of the leads to match the hole

spacing on the board. R11 requires

matching the a

the small rectangular shape (see figure 2).

Solder leads.

Insert capacitors C1, C2, and C7 into the

board. Note that the leads are polarized

and must be placed as shown (see figure

2). Ben

contain capacitors, solder, and clip excess

leads.

Insert capacitors C3, C4, C5, and C6. The

capacitance values are marked on the

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

s of

ill ot

ged after short usage.

rratic signal patterns will result from incorrect

lacement of resistors.

Operationa

ameco

ffer if

p the

e calibration of

sine wave output wave forms and

st.

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

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

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

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

supplied. For more accurate

matching of potentiometer dial-

calibration between ranges, and/o

for greater stability, the user r

may

4. lead

rve correct polarity as

0C)

ound.

Hz/V

minal

nal is

9. sine /

tentiometer)

er)

10. e

tput terminals on

11.

e left

uit

12.

ude

tage.

When not in use, AM terminal

uld be left open-circuited

t and

substitute other capacitors of the

same nominal capacitances.

PRECAUTION: keep the

length short for the range selector

switch (S1 rotary switch)

The JE2206 (function generator

kit) is designed for 12V or +/-

operation but will operate up to a

maximum of 26V or +/-13V.

Whatever supply is used, take care

to obse

otherwise, damage to the IC may

result

The sine / triangle output (terminal

P) amplitude is varied by R12

(50k potentiometer panel mount).

The output impedance is 60

ohms. The square wave (SYN

outputs are derived from a

grounded-emitter transistor

collector connecting within the I

to terminal M. Sync-current at this

terminal should not exceed that

which will pull the LOW voltage

higher than 0.5V above gr

Applied voltage at terminal I for

the purpose of frequency

modulation or sweeping should be

limited to a maximum of +/-3V

about the open-circuit potential of

+3V. The voltage-to-frequency

factor is about 0.00032/CuF

where C is the particular timing

capacitor connected to S!.

Linear amplitude modulation will

occur for input voltages at ter

Q between +/-4V about V+/2. Th

phase of the output sig

reversed and its amplitude goes

through zero at V+/2

Adjust the DC offset of the

triangle output with R9 (1M ohm

potentiometer). Adjust for

minimum sine-wave distortion

with R10 (1k ohm po

and R11 (25k ohm potentiomet

alternately adjusted

SYNC output: the sync output

provides a 50% duty cycle puls

output with either full swing or

upper half swing of the power

supply voltage depending on th

choice of sync ou

the printed circuit board ( see

figures 3 and 4 )

Frequency Modulation (external

sweep): frequency can be

modulated or swept by applying an

external control voltage to sweep

terminal (terminal I). When not in

use, this terminal should b

open-circuited. The open circ

voltage at this terminal is

approximately 3V above th

negative supply voltage and its

impedance is 1000 ohms.

Amplitude Modulation (AM): the

output amplitude varies linearly

with modulation voltage applied to

AM input (terminal Q). The output

amplitude reaches its minimum as

the AM control voltage approach

the half of the total power supply

voltage. The phase of the output

signal reverses as the amplit

goes through its minimum valu

The total dynamic range is

approximately 55dB with AM

control voltage of 4V referenced

the half of the total supply vol

sho

ADJUSTMENT

To adjust for minimum distortion, connect the

scope probe to the triangle / sine wave output.

Close S2 (toggle switch) for sine wave outpu

adjust the amplitude control to give non-clipping

maximum swing. Then adjust R10 and R11

alternately for minimum distortion by observing

the sinusoidal waveform. If a distortion meter is

available you may use it as a final check on the

setting of sine-shaping trimmers. The minimum

distortion obtained in this

manner is less than 1%

om 1Hz to 10kHz and less than 3% over the

tion

S1 (rotary

itch) pin configuration refer to our website

ith the part number 101574.

art Number 20685 (FUNCTION

ied warranty is

pplicable such warranty shall be limited to 90

ive

oper,

arranty r

ct, and/or unauthorized repair

are not covered by the warranty. Seller shall have

the right to final determination as to existence and

cause of defect.

entire frequency range.

For further information on the operation of

XR2206 IC, please refer to the datasheets found

on the webpage of Jameco Part Number 20685

(function generator kit). For pin-configura

of S2 (toggle switch) refer to our website with t

part number 22833, and for the

GENERATOR KIT)

Important disclaimer: to the fullest extent

permitted by applicable law, Jameco expressly

disclaims the implied warranty of fitness for a

particular purpose. Customer should understand

that Jameco does not may any representation tha

products purchased will suit customer's particular

purpose. Customer must rely on customer's own

skill or judgment in selecting suitable products fo

customer. To the extent any impl

days from the date of purchase.

Limitation of liability: Jameco's liability shall be

limited to the repair or replacement of defect

products in accordance with the Jameco Limited

Warranty. Jameco shall not be liable for ay

incidental, special, or consequential damages for

breach of any warranty, expressed or implied,

directly or indirectly arising out of Jameco's sa

of merchandise, including any failure to deliver

any merchandise, or arising out of customer's

installation or use, whether proper or impr

of the product, separately or in combination with

other equipment, or from any other cause.

Warranty: Jameco warrants the equipment to be

free from defects for a period of 90 days from dat

of purchase. If found to be defective, the products

will be replaced with a new unit, not repaired. No

unites will be accepted past the 90 day w

for repair or replacement. There is not charge fo

any replacement. Equipment or parts which have

been subject to abuse, misuse, accident,

alteration, negle

IC 1

XR2206

8 9

NC NC

F (output)

S2 TRI/SINE WAVE

R8 (300 ohms)

R10 (1k POT)

I (Sweep Input) J

R3 (1k)

R4 (9.1k)

(S1)

C3 (1uF)

C4 (0.1uF)

C5 (0.01uF)

C6 (0.001uF)

M SYNC OUTPUT

(FULL SWING)

L SYNC OUTPUT

(HALF-SWING)

R5 (5.1k)

R6 (5.1k)

C (V+)

B (GRND)

A (V-)

C1 (10uF @ 50V) C2 (10uF @ 50V)

R9 (1M POT)

R2 (100k)

DC OFFSET

Q (AM INPUT)

R1 (30k)

R11 (25k POT)

R7 (1k)

K (V-)

C7 (10uF @ 50V)

+ -

R13 (1M)

FREQUENCY

FREQUENCY RANGE

Schematic Diagram with External Rotary

Switch (S1) for Frequency Range Selection,

SPDT switch (S2) for TRI/SINE Wave

selection, and 1M ohm Potentiometer (R13)

for FREQUENCY. Not Shown is 50k

potentiometer (R12) for AMP ADJUST –

connection of pot to PCB depends on single

supply operation (see figure 3) or split

supply (see figure 4)

SCHEMATIC

Scanned Picture of Printed Circuit Board

Figure 1

Take note of capacitor polarity; if

aluminum electrolytic capacitor has a

polarity indicator, arrow will point to which

side of the capacitor is negative or

positive.

Notes on Capacitor Polarity and IC pin identification

Figure 2

Take note of capacitor polarity; if

aluminum electrolytic capacitor has a

polarity indicator, arrow will point to which

side of the capacitor is negative or

positive.

Take note of capacitor polarity; if

aluminum electrolytic capacitor has a

polarity indicator, arrow will point to which

side of the capacitor is negative or

positive.

Make note of integrated

circuit before soldering into

board, notch on IC should

be aligned to the notch

indicator on the PCB board.

R10 potentiometer making note

of pin layout. You may have to

spread pins to match hole

spacing.

R9 potentiometer making note

of pin layout. You may have to

spread pins to match hole

spacing.

Adjustment knob of R11

should be aligned to small

rectangular shape.

Connections for Single Supply Operation

Figure 3

+12V

GROUND

1M OHM (R13)

POTENTIOMETER FREQ

ADJUST

50k Potentiometer

(R12) AMP ADJUST

S2 Switch for

TRI / SINE WAVE

Rotary Switch (S1) for

Frequency Range

Selection

Frequency Sweep Input

Signal Output

Amplitude Modulation

Input

SYNC OUTPUT (HALF

SWING)

SYNC OUTPUT

(FULL SWING)

Solder wire across

node A and node

above A

Connections for Split Power Supply Operation

Figure 4

R12 (50k ohm) Pot

AMPLITUDE

V+ (+6V)

V- (-6V)

S2 TRI / SINE

WAVE

SYNC OUT (FULL

SWING)

SYNC OUT (HALF SWING) R13 (1M ohm) POT

FREQ

OUTPUT AM INPUT

S1 (rotary switch)

Frequency Range

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