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IM72D128-Tube

hbitter·DNMS·PCBs/IM72D128 microphone PCB/IM72D128-Tube-PCB-V1.0/IM72D128-Tube-PCB.kicad_pcb

IM72D128-Tube PCB layout, top view — open source board by hbitter
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About the IM72D128-Tube PCB

IM72D128-Tube is an open source PCB design by hbitter, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 130 × 11 mm, with 21 components from 14 distinct parts.

Other key parts include the LP5907MFX-3.3/NOPB, ADAU7002ACBZ-R7 and SN74LV1T34DBVR. By type, the board carries 7 capacitors, 5 ICs, 2 jumpers, 1 connector and 1 resistor.

It belongs with the sensors and test & measurement designs in this gallery.

From the project

Digital Noise Measurement Sensor

PCB Versions Historie: - ICS-43434-PCB-V1.3 - erste veröffentlichte Version - ICS-43434-PCB-V1.4 - Durchmesser für die akustische Öffnung geändert con 0,6mm auf 0,7mm

PCB Versions Historie: - Airrohr-V1.1 - erste Version - Airrohr-V1.2 - I²C-Bus Verlängerung mit zusätzlicher RJ-12 (Modular Jack) 6P/6C Buchse - Airrohr-V1.4 - RJ12 Buchse nun für zwei unterschiedliche "Footprints" und in der Ausrichtung geändert - einige Bauelemente nach innen verschoben, damit der Einbau in ein Gehäuse (Rohr) einfacher ist - P82B715 (I²C-bus Extender IC) kann im DIP8 Gehäuse oder im SO8 Gehäuse bestückt…

IM72D128-Tube, from the project README
From the project README

Main components on the IM72D128-Tube

LP5907MFX-3.3/NOPBADAU7002ACBZ-R7SN74LV1T34DBVR

IM72D128-Tube bill of materials (BOM)

21 components, 14 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LP5907MFX-3.3/NOPB
LP5907MFX-3.3
Texas Instruments
U1
1
ADAU7002ACBZ-R7
Analog Devices
U2
3
SN74LV1T34DBVR
Texas Instruments
U3, U4, U5
1
Conn_02x03_Odd_Even
J1
2
SolderJumper_2_Open
JP1, JP2
1
VDD
SP1
1
CLOCK
SP2
1
SELECT
SP3
1
DATA
SP4
1
GND
SP5
2
CL10A105KO8NNNC
1uF
Samsung Electro-Mechanics
C1, C2
4
CL10B104KO8NNNC
100nF
Samsung Electro-Mechanics
C3, C4, C5, C6
1
CC0603JRNPO8BN470
47pF
Yageo
C7
1
RC0603FR-07100KL
100K
Yageo
R1

IM72D128-Tube design files

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

IM72D128-Tube: common questions

How big is the IM72D128-Tube PCB?

The IM72D128-Tube measures 130 × 11 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the IM72D128-Tube?

21 components, from 14 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 IM72D128-Tube design files?

From the hbitter/DNMS 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 IM72D128-Tube design in my own project?

Yes, under the terms of its GPL-3.0 license, which hbitter chose for the repository.

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