HardLabs

DDS Modul 2

apxco·Kicad·AD9850-Modul_ver4/DDS_A2_rev1.kicad_pcb

DDS Modul 2 PCB layout, top view — open source AVR/Arduino board by apxco

About the DDS Modul 2 PCB

DDS Modul 2 is an open source AVR/Arduino PCB design by apxco, published on GitHub. It is a 2-layer board measuring 100 × 84 mm, with 68 components from 35 distinct parts.

Its main chip is the ATmega328P-AU, from the AVR/Arduino family. Other key parts include the LM4562, AD9850_modul, lm393 and 74HC14. By type, the board carries 23 capacitors, 20 resistors, 7 connectors, 5 ICs, 4 transistors and 4 diodes.

From the project

Signalgenerator Steuerplatine. So aufgebaut und funktioniert. Kann das Programm für den Arduino nicht genau bestimmen, sollte aber passen.

Signalgenerator Steuerplatine. So aufgebaut und funktioniert. Kann das Programm für den Arduino nicht genau bestimmen, sollte aber passen.

Als Hilfsmittel für mein Heimlabor abgeschlossen.

Main components on the DDS Modul 2

LM4562AD9850_modullm39374HC14ATmega328P-AU

DDS Modul 2 bill of materials (BOM)

68 components, 35 distinct parts.

QtyPartRefs
1
LM4562
U1
1
AD9850_modul
U2
1
lm393
U3
1
74HC14
U4
1
ATmega328P-AU
U5
1
BC547
Q1
1
BC556
Q2
1
BD139
Q3
1
BD140
Q4
1
Crystal
Y1
1
Conn_01x02_Male
J1
1
Conn_01x16_Male
J2
2
Conn_01x20_Male
J3, J4
1
AVR-ISP-6
J5
1
Conn_01x03_Male
J6
1
Conn_02x05_Odd_Even
J7
1
Schwelle
RV1
1
Level
RV2
1
25k
RV3
1
Rotary_Encoder_Switch
SW1
Show 15 more
QtyPartRefs
2
1N4148W
D1, D2
2
1N4007
D3, D4
14
100n
C1, C2, C3, C7, C9, C12, C13, C14 +6
4
100u
C4, C5, C8, C16
3
C
C6, C10, C11
2
C
C17, C18
1
100k
R1
2
1k
R2, R12
5
10k
R3, R5, R13, R15, R18
1
3k
R6
3
4,7k
R7, R8, R16
2
6,8
R9, R10
1
10R
R11
1
100R
R17
4
240
R19, R20, R21, R22

DDS Modul 2 design files

The KiCad project lives in the apxco/Kicad repository on GitHub; these links point at the commit this page was built from.

DDS Modul 2: common questions

What microcontroller does the DDS Modul 2 use?

The DDS Modul 2 is built around the ATmega328P-AU, from the AVR/Arduino family.

How big is the DDS Modul 2 PCB?

The DDS Modul 2 measures 100 × 84 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the DDS Modul 2?

68 components, from 35 distinct parts. The full bill of materials is listed on this page.

Where can I download the DDS Modul 2 design files?

From the apxco/Kicad repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the DDS Modul 2 design in my own project?

The repository has no license, so all rights stay with apxco. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the DDS Modul 2 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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