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Helios dac

Grix·helios_dac·hardware/Kicad_PCB_helios/Helios.kicad_pcb

Helios dac PCB layout, top view — open source Microchip SAM board by Grix

About the Helios dac PCB

Helios dac is an open source Microchip SAM PCB design by Grix, published on GitHub under the MIT license. It is a 2-layer board measuring 75.2 × 61.1 mm, with 97 components from 22 distinct parts.

Its main chip is the ATSAM4S2BB-ANR, from the Microchip SAM family. Other key parts include the IP4220CZ6, AZ1117IH-3.3TRG1, AN431AN-ATRG1, CRV1D0512SC and DAC084S085CIMM/NOPB. By type, the board carries 48 resistors, 31 capacitors, 9 ICs, 3 inductors, 2 connectors and 2 diodes.

From the project

Helios Laser DAC

* https://bitlasers.com/helios-laser-dac/

Open source, low cost USB DAC for the ISP-DB25 (ILDA) laser protocol. Allows you to control an ILDA laser projector via computer over USB. Supports lots of third party software (see link above). This repository consists of: SDK for supporting the Helios USB and IDN DACs in your software (with examples in C++, Python and C#/.NET) Hardware (PCB schematic in KiCAD) Firmware (Atmel Studio project) Extras (firmware update tool, media etc.)

Main components on the Helios dac

IP4220CZ6AZ1117IH-3.3TRG1AN431AN-ATRG1CRV1D0512SCDAC084S085CIMM/NOPBTL084CPTLM358YDTATSAM4S2BB-ANR

Helios dac bill of materials (BOM)

97 components, 22 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
IP4220CZ6
UMW
U1
1
AZ1117IH-3.3TRG1
AP2114
Diodes Incorporated
U2
1
AN431AN-ATRG1
AN431B
Diodes Incorporated
U3
1
CRV1D0512SC
~
Murata Power
U4
1
DAC084S085CIMM/NOPB
DAC084S085C
Texas Instruments
U5
2
TL084CPT
TL084_v
STMicroelectronics
U6, U8
1
LM358YDT
LM358
STMicroelectronics
U7
1
ATSAM4S2BB-ANR
ATSAM4S
Microchip Technology
U9
1
ABLS2-16.000MHZ-D4Y-T
16MHz 18pF
Abracon Corporation
Y1
1
921-111A1010D10200
USB_B
Jing Extension(精拓金)
P1
1
DB-25F
CONN_01X25-SHIELD
TAD(泰安达)
P2
1
0ZCJ0110FF2E
F_Small
Bel Fuse
F1
2
APA1606SYCK
Led_Small
Kingbright
D1, D2
3
MPZ1608B471ATA00
FILTER
TDK Corporation
L1, L2, L3
9
CS1H4R7M-CRC54
4.7uF
ST(先科)
C1, C4, C6, C8, C9, C11, C23, C24 +1
18
CC0402KRX7R8BB104
100nF
Yageo
C2, C3, C7, C10, C13, C14, C15, C16 +10
4
CC0402JRNPO9BN130
13pF
Yageo
C12, C29, C31, C32
2
RC0603JR-0727RL
27
Yageo
R1, R2
11
RC0603JR-07150RL
150
Yageo
R3, R4, R5, R6, R7, R8, R9, R10 +3
18
RT0603BRD0710KL
10k
Yageo
R14, R15, R18, R19, R20, R21, R23, R26 +10
Show 2 more
QtyPartRefs
8
RC0603FR-075K11L
5.11k
Yageo
R16, R17, R24, R25, R30, R32, R41, R42
9
RC0603FR-071K65L
1.65k
Yageo
R22, R33, R34, R35, R36, R45, R46, R47 +1

Helios dac design files

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

Helios dac: common questions

What microcontroller does the Helios dac use?

The Helios dac is built around the ATSAM4S2BB-ANR, from the Microchip SAM family.

How big is the Helios dac PCB?

The Helios dac measures 75.2 × 61.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Helios dac?

97 components, from 22 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Helios dac design files?

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

Can I use the Helios dac design in my own project?

Yes, under the terms of its MIT license, which Grix chose for the repository.

Can I test firmware for the Helios dac without the hardware?

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

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