DMH Output PCB 1

DeMarco·DMH-Output·old_versions/DMH_Output_PCB_1/DMH_Output_PCB_1.kicad_pcb

About the DMH Output PCB 1

DMH Output PCB 1 is an open source PCB design by DeMarco, published on GitHub under the CC0-1.0 license. It is a 2-layer board measuring 48 × 175 mm, with 263 components from 64 distinct parts.

Other key parts include the TL072, LM339, TL074 and NE5532. By type, the board carries 111 resistors, 76 capacitors, 36 diodes, 22 ICs, 11 connectors and 2 transistors.

It belongs with the audio designs in this gallery.

From the project

Kosmo format output module

The L and R inputs accept the usual (Eurorack) modular synth audio amplitude of 10 V peak-to-peak. The line level L and R outputs accept both balanced TRS and unbalanced TS cables. The main volume control affects both L and R channels. The reduction factor can be set from from -infinite (silence) to -3 dB (max). Since the usual 10 Vpp amplitude corresponds to around +13 dBu, this means the module can output from -infinite up to +10 dBu. The precision dBu meter will max out at +6 dBu (red LED). Most professional audio equipment like mixers and audio interfaces expect a nominal input line level…

DMH Output PCB 1, from the project README — From the project README

Main components on the DMH Output PCB 1

TL072 LM339 TL074 NE5532

DMH Output PCB 1 bill of materials (BOM)

263 components, 64 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
3	TL072	DIP-8_W7.62mm_Socket	U1, U7, U20
7	LM339	DIP-14_W7.62mm_Socket	U2, U3, U4, U5, U6, U24, U25
2	TL074	DIP-14_W7.62mm_Socket	U8, U11
8	NE5532	DIP-8_W7.62mm_Socket	U9, U10, U13, U15, U16, U17, U18, U19
2	NE5532	DIP-8_W7.62mm_Socket	U12, U14
2	BC558	TO-92L_Inline_Wide	Q1, Q2
6	TRS_JACK_6.35MM_SW TS_Jack_6.35mm_Sw	CUI_MJ-63052A	J1, J2, J6, J7, J8, J9
3	TRS_JACK_6.35MM_SW TRS Jack 6.35mm	CUI_SJ-63083A	J3, J4, J5
1	IDC_02X05 IDC_02x05	IDC-Header_2x05_P2.54mm_Vertical_Eurorack	J100
1	IDC_02X05 IDC_02x08	IDC-Header_2x08_P2.54mm_Vertical_BackBone	J200
3	B10K B10k_Dual	Potentiometer_Alpha_RD902F-40-00D_Dual_Vertical	RV1, RV2, RV3
2	1k	Potentiometer_Bourns_3296W_Vertical	RV4, RV5
2	SB140	D_DO-41_SOD81_P10.16mm_Horizontal	D1, D2
12	1N4148	D_DO-35_SOD27_P7.62mm_Horizontal	D3, D4, D5, D6, D27, D28, D29, D30 +4
14	LED_G	LED_Rectangular_W5.0mm_H2.0mm	D7, D8, D9, D10, D11, D12, D15, D20 +6
4	LED_Y	LED_Rectangular_W5.0mm_H2.0mm	D13, D14, D18, D19
2	LED_R	LED_Rectangular_W5.0mm_H2.0mm	D16, D17
2	LED_Dual_AKA	LED_Rectangular_W5.0mm_H2.0mm-3Pins	D31, D32
2	47UF 47uF	CP_Radial_D5.0mm_P2.00mm	C1, C2
36	100NF 100nF	C_Disc_D4.3mm_W1.9mm_P5.00mm	C3, C4, C39, C40, C41, C42, C43, C44 +28

Show 44 more

Qty	Part	Footprint	Refs
4	10UF 10uF	CP_Radial_D5.0mm_P2.00mm	C5, C6, C23, C24
12	47uF 35V	C_Radial_D8.0mm_H11.5mm_P3.50mm	C7, C10, C22, C27, C28, C29, C31, C32 +4
10	100PF 100pF	C_Disc_D3.0mm_W2.0mm_P2.50mm	C8, C9, C11, C12, C13, C14, C15, C18 +2
2	22uF 35V	C_Radial_D8.0mm_H11.5mm_P3.50mm	C16, C17
2	22uF	CP_Radial_D5.0mm_P2.00mm	C20, C21
4	22pF 50V	C_Disc_D3.0mm_W2.0mm_P2.50mm	C25, C26, C30, C33
4	100nF	C_Disc_D4.3mm_W1.9mm_P5.00mm	C69, C71, C75, C76
8	22K 22k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R1, R2, R5, R8, R20, R24, R66, R71
4	470R	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R3, R6, R86, R94
1	82K 82k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R9
1	6K8 5k6	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R10
1	4K7 3k9	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R11
1	3K3 2k7	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R12
1	2K37 2k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R13
1	1K69 1k39	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R14
1	1K2 1k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R15
1	1K43 1k2	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R16
1	715R 560R	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R17
1	361R 330R	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R18
1	361R 270R	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R19
2	47R 100R	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R21, R23
2	470R	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R22, R25
2	20K 20k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R26, R29
2	14K 14k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R27, R28
16	1k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R30, R31, R32, R33, R43, R44, R46, R48 +8
8	4K7 4k7	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R34, R35, R40, R42, R96, R98, R112, R114
10	10K 10k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R36, R39, R68, R73, R93, R100, R101, R106 +2
4	75R	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R37, R38, R41, R113
2	10K 1k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R45, R47
4	10R	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R50, R51, R54, R55
4	10R	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R52, R53, R58, R59
4	100R	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R60, R63, R70, R74
2	220K 220k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R61, R64
6	100K 100k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R62, R65, R69, R75, R85, R91
4	2k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R76, R77, R78, R79
2	68K 68k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R80, R81
2	22K 100K	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R84, R92
2	68K 100K	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R87, R95
4	3K3 3k3	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R88, R90, R109, R110
2	22K 20k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R89, R97
1	47K 56k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R99
1	10K 8k2	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R102
1	47K 39k	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R105
1	1k3	R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R108

DMH Output PCB 1 design files

The KiCad project lives in the DeMarco/DMH-Output repository on GitHub; these links point at the commit this page was built from.

DMH Output PCB 1: common questions

How big is the DMH Output PCB 1?

The DMH Output PCB 1 measures 48 × 175 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the DMH Output PCB 1?

263 components, from 64 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 DMH Output PCB 1 design files?

From the DeMarco/DMH-Output 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 DMH Output PCB 1 design in my own project?

Yes, under the terms of its CC0-1.0 license, which DeMarco chose for the repository.

DMH Output PCB 1

About the DMH Output PCB 1

Main components on the DMH Output PCB 1

DMH Output PCB 1 bill of materials (BOM)

DMH Output PCB 1 design files

DMH Output PCB 1: common questions

How big is the DMH Output PCB 1?

How many components are on the DMH Output PCB 1?

Where can I download the DMH Output PCB 1 design files?

Can I use the DMH Output PCB 1 design in my own project?

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DMH Output PCB Mezanine

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