velleman K8016 PC Function Generator Instruction Manual

: June 12, 2024
: Velleman

velleman K8016 PC Function Generator Instruction Manual

Features & specifications

Features

frequency range: from 0.01Hz to 1MHz
crystal-based stability
optically isolated from the PC
low sinewave distortion
TTL level synchronisation output
stores up to 32K of waveform points
standard waveforms: sine, square and triangle
predefined library waveforms included: noise, sweep, …
includes Windows™ ’95/’98/NT/2000/XP integrated software for the function generator and Velleman PC oscilloscopes
you can create your own waveforms with the integrated signal wave editor
can be chained with Velleman PC oscilloscopes to the same PC printer port (LPT1, 2 or 3)
extended bode plot possibility, used with PC scope PCS500 / K8031 / PCS100
function generator screen with signal preview
assembled version available: PCG10

Specifications

power supply: standard 12V DC adapter, 800mA (PS1208)
direct digital wave synthesis (DDS), 32K wave table
frequency setting resolution: 0.01%
amplitude range: 100mVpp to 10Vpp @ 600ohm load
amplitude resolution: 0.4% of full scale
offset: from 0 to -5V or +5V max. (resolution 0.4% of full scale)
vertical resolution: 8 bits (0.4% of full scale)
maximum sample rate: 32MHz
typical sine wave distortion (THD): < 0.08%
output impedance: 50ohm
dimensions: 235 x 165 x 47mm (9.3″ x 6.5″ x 1.9″)

Windows™ is a registrated trademark of Microsoft® Corporation

Assembly (Skipping this can lead to troubles ! )

Ok, so we have your attention. These hints will help you to make this project successful. Read them carefully.

Make sure you have the right tools:

A good quality soldering iron (25-40W) with a small tip.
Wipe it often on a wet sponge or cloth, to keep it clean; then apply solder to the tip, to give it a wet look. This is called ‘thinning’ and will protect the tip, and enables you to make good connections. When solder rolls off the tip, it needs cleaning.
Thin raisin-core solder. Do not use any flux or grease.
A diagonal cutter to trim excess wires. To avoid injury when cutting excess leads, hold the lead so they cannot fly towards the eyes.
Needle nose pliers, for bending leads, or to hold components in place.
Small blade and Phillips screwdrivers. A basic range is fine.

For some projects, a basic multi-meter is required, or might be handy

Assembly Hints :

Make sure the skill level matches your experience, to avoid disappointments.
Follow the instructions carefully. Read and understand the entire step before you perform each operation.
Perform the assembly in the correct order as stated in this manual
Position all parts on the PCB (Printed Circuit Board) as shown on the drawings.
Values on the circuit diagram are subject to changes.
Values in this assembly guide are correct*
Use the check-boxes to mark your progress.
Please read the included information on safety and customer service
Typographical inaccuracies excluded. Always look for possible last minute manual updates, indicated as ‘NOTE’ on a separate leafle

Soldering Hints :

Mount the component against the PCB surface and carefully solder the leads
Make sure the solder joints are cone-shaped and shiny
Trim excess leads as close as possible to the solder joint

AXIAL COMPONENTS ARE TAPED IN THE CORRECT MOUNTING SEQUENCE !

REMOVE THEM FROM THE TAPE ONE AT A TIME !
Assembly

Diodes (check the polarity)

Diodes

D1 : 1N4148
D2 : 1N4148
D3 : 1N4148
D4 : 1N4148
D5 : 1N4148
D6 : 1N4148
D7 : 1N4148
D8 : 1N4148
D9 : 1N4148
D11 : 1N4148
D12 : 1N4148
D13 : 1N4148
D14 : 1N4148
D15 : 1N4148
D16 : 1N4148
D17 : 1N4148
D18 : 1N4148
D19 : 1N4148
D20 : 1N4148
D21 : 1N4148
D22 : 1N4148
D24 : 1N4148
D25 : 1N4148
D35 : 1N4007

Zenerdiode (check the polarity)

Zenerdiode

ZD1 : 5V1

Resistors (1%)

Resistors

R1 : 10K (1 – 0 – 0 – 2 – 1)
R2 : 1K (1 – 0 – 0 – 1 – 1)
R3 : 1K (1 – 0 – 0 – 1 – 1)
R4 : 1K (1 – 0 – 0 – 1 – 1)
R5 : 1K (1 – 0 – 0 – 1 – 1)
R6 : 100 (1 – 0 – 0 – 0 – 1)
R7 : 100 (1 – 0 – 0 – 0 – 1)
R8 : 100 (1 – 0 – 0 – 0 – 1)
R9 : 100 (1 – 0 – 0 – 0 – 1)
R10 : 100 (1 – 0 – 0 – 0 – 1)
R11 : 100 (1 – 0 – 0 – 0 – 1)
R12 : 100 (1 – 0 – 0 – 0 – 1)
R13 : 200 (2 – 0 – 0 – 0 – 1)
R14 : 200 (2 – 0 – 0 – 0 – 1)
R15 : 1K (1 – 0 – 0 – 1 – 1)
R16 : 470 (4 – 7 – 0 – 0 – 1)
R17 : 9K1 (9 – 1 – 0 – 1 – 1)
R18 : 270K (2 – 7 – 0 – 3 – 1)
R19 : 560K (5 – 6 – 0 – 3 – 1)
R20 : 82K (8 – 2 – 0 – 2 – 1)
R21 : 270K (2 – 7 – 0 – 3 – 1)
R22 : 51K (5 – 1 – 0 – 2 – 1)
R23 : 150K (1 – 5 – 0 – 3 – 1)
R24 : 10K (1 – 0 – 0 – 2 – 1)
R25 : 68K (6 – 8 – 0 – 2 – 1)
R26 : 12K (1 – 2 – 0 – 2 – 1)
R27 : 39K (3 – 9 – 0 – 2 – 1)
R28 : 1K (1 – 0 – 0 – 1 – 1)
R29 : 10K (1 – 0 – 0 – 2 – 1)
R30 : 10K (1 – 0 – 0 – 2 – 1)
R31 : 10K (1 – 0 – 0 – 2 – 1)
R32 : 4K7 (4 – 7 – 0 – 1 – 1)
R33 : 47 (4 – 7 – 0 – B – 1)
R34 : 2K2 (2 – 2 – 0 – 1 – 1)
R35 : 1K (1 – 0 – 0 – 1 – 1)
R36 : 1K (1 – 0 – 0 – 1 – 1)
R37 : 10K (1 – 0 – 0 – 2 – 1)
R38 : 1M (1 – 0 – 0 – 4 – 1)
R39 : 10K (1 – 0 – 0 – 2 – 1)
R40 : 200 (2 – 0 – 0 – 0 – 1)
R41 : 200 (2 – 0 – 0 – 0 – 1)
R42 : 200 (2 – 0 – 0 – 0 – 1)
R43 : 200 (2 – 0 – 0 – 0 – 1)
R44 : 100 (1 – 0 – 0 – 0 – 1)
R45 : 47 (4 – 7 – 0 – B – 1)
R46 : 1K (1 – 0 – 0 – 1 – 1)
R47 : 1K (1 – 0 – 0 – 1 – 1)
R48 : 1K (1 – 0 – 0 – 1 – 1)
R49 : 470 (4 – 7 – 0 – 0 – 1)
R50 : 4K7 (4 – 7 – 0 – 1 – 1)
R51 : 10K (1 – 0 – 0 – 2 – 1)
R52 : 10K (1 – 0 – 0 – 2 – 1)
R53 : 10K (1 – 0 – 0 – 2 – 1)
R54 : 20K (2 – 0 – 0 – 2 – 1)
R55 : 2K (2 – 0 – 0 – 1 – 1)
R56 : 470 (4 – 7 – 0 – 0 – 1)
R57 : 1K (1 – 0 – 0 – 1 – 1)
R58 : 10K (1 – 0 – 0 – 2 – 1)
R59 : 560K (5 – 6 – 0 – 3 – 1)
R60 : 330 (3 – 3 – 0 – 0 – 1)
R61 : 47K (4 – 7 – 0 – 2 – 1)
R62 : 1K (1 – 0 – 0 – 1 – 1)
R63 : 330 (3 – 3 – 0 – 0 – 1)
R64 : 560K (5 – 6 – 0 – 3 – 1)
R69 : 100 (1 – 0 – 0 – 0 – 1)
R74 : 100 (1 – 0 – 0 – 0 – 1)
R75 : 100 (1 – 0 – 0 – 0 – 1)
R76 : 100 (1 – 0 – 0 – 0 – 1)
R79 : 4K7 (4 – 7 – 0 – 1 – 1)
R84 : 2K (2 – 0 – 0 – 1 – 1)
R85 : 2K (2 – 0 – 0 – 1 – 1)
R86 : 2K (2 – 0 – 0 – 1 – 1)

Capacitors

C1 : 100nF (104)
C2 : 100nF (104)
C3 : 100nF (104)
C5 : 100pF (101)
C6 : 33pF (33)
C8 : 1nF (102)
C9 : 100nF (104)
C10 : 10nF (103)
C12 : 100nF (104 – µ 1)
C17 : 100nF (104 – µ 1)
C20 : 100nF (104 – µ 1)
C23 : 100nF (104 – µ 1)
C25 : 100nF (104 – µ 1)
C26 : 100nF (104 – µ 1)
C27 : 100nF (104 – µ 1)
C28 : 100nF (104 – µ 1)
C29 : 100nF (104 – µ 1)
C30 : 100nF (104 – µ 1)
C31 : 100nF (104 – µ 1)
C32 : 10pF (10)
C34 : 100nF (104 – µ 1)
C35 : 100nF (104 – µ 1)
C36 : 100nF (104 – µ 1)
C37 : 100nF (104 – µ 1)
C38 : 100nF (104 – µ 1)
C39 : 100nF (104 – µ 1)
C40 : 82pF (82)
C41 : 100nF (104 – µ 1)
C42 : 100nF (104 – µ 1)
C43 : 100nF (104 – µ 1)
C44 : 100nF (104 – µ 1)
C45 : 470nF (474)
C46 : 100nF (104 – µ 1)
C49 : 100nF (104 – µ 1)
C50 : 100nF (104 – µ 1)
C51 : 100nF (104 – µ 1)
C53 : 100nF (104 – µ 1)
C54 : 100nF (104 – µ 1)
C55 : 100nF (104 – µ 1)
C56 : 100nF (104 – µ 1)
C57 : 100nF (104 – µ 1)
C58 : 100nF (104 – µ 1)
C59 : 100nF (104 – µ 1)
C64 : 100nF (104 – µ 1)
C75 : 100nF (104 – µ 1)
C76 : 100nF (104 – µ 1)
C79 : 100nF (104 – µ 1)

IC sockets Watch the position of the notch!

IC sockets

IC2 : 16P
IC3 : 16P
IC4 : 16P
IC5 : 16P
IC6 : 16P
IC7 : 16P
IC8 : 16P
IC9 : 14P
IC10 : 28P
IC11 : 16P
IC13 : 8P
IC14 : 16P
IC15 : 14P
IC18 : 16P
IC19 : 16P
IC20 : 8P
IC21 : 16P
IC22 : 24P
IC24 : 8P
IC33 : 8P
IC35 : 8P
IC36 : 8P
IC37 : 8P
IC48 : 16P
IC49 : 16P
IC50 : 16P

Electrolytic capacitors. Check the polarity !

Electrolytic capacitors

C4 : 4µ 7
C7 : 1µ F
C11 : 4µ 7
C13 : 100µ F
C14 : 100µ F
C15 : 100µ F
C16 : 100µ F
C18 : 4µ 7
C19 : 100µ F
C21 : 4µ 7
C22 : 100µ F
C24 : 100µ F
C33 : 10µ F
C47 : 4µ 7
C48 : 100µ F
C71 : 100µ F
C77 : 1µ F
C101 : 4µ 7
C102 : 4µ 7
C103 : 4µ 7
C104 : 4µ 7

Multiturn trimmer

RV1 : 2K (K002TW)

Oscillator (watch the position of the notch)

Oscillator

X1 : 32MHz

Reed relays (check the position of the notch)

Reed relays

RY1 : VR05R051A

Pico fuse

FS1 : 1A fast (PFU1)

Transistor

T1 : BC337
T2 : BC327
T3 : BC337
T4 : BC327
T5 : BC337
T6 : BC337
T7 : BC337
T8 : BC327
T9 : BC337
T10 : BC337
T11 : BC337
T13 : BC337
T14 : BC337
T15 : BC32
T16 : TIP42 (TIP32)

Voltage regulators

IC1 : 7912 (UA7912)
IC12 : 7812 (UA7812)
IC17 : 7805 (UA7805)
IC16 : 79L05 (UA79L05)

LEDs. Watch the polarity!

LD1 : 3mm RED (Power ON)
LD2 : 3mm RED (Ready)

IMPORTANT
Mount these LEDs exactly like in the drawing, otherwise the LEDs will not fit correctly in the front panel.

Connectors

J6 : BNC
J8 : BNC
Carefully solder the connections.
J14 : Power (DJ-005)
J5 : 25P SUBD, female (connection to PC-scope)
J7 : 25P SUBD, male (connection from printer port)

IC’s check the position ! (Watch the position of the notch!)

IC’s check the position

IC2 : 74HC595
IC3 : 74HC595
IC4 : 74HC4518
IC5 : 74HC595
IC6 : TDA8702
IC7 : 74F161
IC8 : 74HC162
IC9 : 74HC14
IC10 : CY7C199
IC11 : 74HC4518
IC13 : LM6181
IC14 : 74HC4051
IC15 : 74HC132
IC18 : 74HC4051
IC19 : 74HC595
IC20 : 6N136
IC21 : 74HC595
IC22 : VK8016 (GAL22V10)
IC24 : TL081 (TL081CP)
IC33 : LM6181
IC35 : 6N136
IC36 : 6N136
IC37 : 6N136
IC48 : 74F161
IC49 : 74F161
IC50 : 74F161

Voltage regulator and PCB assembly

IC23: 7805 (UA7805P) – This regulator must be isolated plastic type !

Attention : The voltage regulator is a fully isolated (plastic) type because it has to be isolated galvanically from the rear panel. Mount the voltage regulator on the rear panel and fasten it with the supplied M3 bolt, washer and nut as shown on the drawing. Position the PCB together with the front and rear panel in the bottom half of the enclosure. Now the voltage regulator can be soldered at the component side of the PCB, not at the solder side. Do not fasten the PCB yet.
Voltage regulator and PCB assembly

Assemble the enclosure as following:

Calibration

To allow calibration, the unit must be connected to the computer and the supplied software must be installed. Please consult the ‘Getting Started’ manual for details on the connection and installation procedure.

Select the function generator module [Function generator].
Select the correct parallel port [Options > Hardware setup].
Check if the ‘POWER ON’ (LD1) LED lights. If it does not light, check the complete assembly and check the parallel port settings in the options-hardware setup of the software.
Make sure the frequency is set to 1000Hz (1KHz). Adjust if necessary (1).
Make sure the offset is set to 0V. Adjust if necessary (6).
Make sure the amplitude is set to 5Vpp. Adjust if necessary (7).
Select sinewave output (4). Readout (9) should now show a sine wave and the ‘READY’ LED (LD2) should light.
Connect a digital multimeter to the ‘signal out’ connector of the generator. Set it to DC volts. Adjust the multi-turn trimmer RV1 until the multimeter displays zero volts. If necessary, adjust the range of the meter to obtain a higher resolution. Now you can check the waveform, using an oscilloscope or one of our PC- or handheld scopes
If for some the measured values are totally off, please inspect the complete assembly, paying special attention to the solder joints, component positioning and values.
If everything went well, you can fasten the PCB with the supplied screws, and close the enclosure lid.

Your function generator is now ready for use !