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lichen-community-systems
Hardware designs for eurorack synthesizer modules by Lichen Community Systems
| Reference | Value | Description |
|---|---|---|
| U1 | LDL1117-3.3 | 1.2A 18V 3.3V 500uA 600mV@(1.2A) 60uVrms 87dB@(120Hz) SOT-223-4 LDO |
| U2 | RP2354_60QFN | QFN-60(7x7) Microcontroller |
| U3,U4 | USBLC6-2SC6 | Very low capacitance ESD protection diode, 2 data-line, SOT-23-6 |
| U5 | HCPL-0631 | Dual High Speed LSTTL/TTL Compatible Optocoupler, dV/dt 10000/us, VCM 1000, max 7V VCC, SOIC-8 |
| C1,C6,C11-C19 | 100nF | 100nF 50V X7R ±10% 0402 |
| C2 | 1uF | 1uF 50V X7R ±10% 0805 |
| C3,C7-C10 | 4.7uF | 10V 4.7uF X5R ±20% 0402,25V 4.7uF X5R ±10% 0805 |
| C4,C5 | 15pF | 15pF 50V C0G ±5% 0402 MLCC |
| C20 | 100nF_0402_16V | 100nF 50V X7R ±10% 0402 |
| D1 | Yellow | 1.8V~2.4V 120° 175mcd 40mW 584nm~594nm 596nm Water Clear Yellow 0805 |
| D2 | Green | 1.8V~2.4V 120° 175mcd 40mW 584nm~594nm 596nm Water Clear Yellow 0805 |
| J1 | Conn_01x03_MountingPin | 1A 1mm 1x3P 2.9mm 4.32mm 50V Right Angle SMD |
| J2 | USB_C_Receptacle_USB2.0_16P | 10,000 cycles 16P 20V 5A 7.35mm Female Surface Mount, Right Angle Type-C SMD |
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| J3 | USB_C_Receptacle_USB2.0_14P | 10,000 cycles 16P 20V 5A 7.35mm Female Surface Mount, Right Angle Type-C SMD |
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| J4,J5 | TRS | Audio Jack, 3 Poles (Stereo / TRS), Grounded Sleeve |
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| L1 | 3.3uH | 0806 Power Inductor Polarized |
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| R1 | 33R_0402 | 33Ω 50V 62.5mW ±1% 0402 |
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| R2 | 1k | 1kΩ 50V 62.5mW ±1% 0402 |
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| R3,R4 | 27R | 27Ω 50V 62.5mW ±1% 0402 |
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| R5,R6,R16 | 1K | 1.5kΩ 50V 62.5mW ±1% 0402,1kΩ 50V 62.5mW ±1% 0402 |
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| R7,R8 | 5.1K | 5.1K, 1%, 1/10W, 0603 |
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| R9,R10 | 4.7K | 4k7, 1%, 1/10W, 0603 |
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| R11 | 33R | 33Ω 50V 62.5mW ±1% 0402 |
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| R12 | 10R | 10Ω 50V 62.5mW ±1% 0402 |
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| R13,R14 | 220R | 220Ω 50V 62.5mW ±1% 0402 |
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| R15 | 470R | 470Ω 50V 62.5mW ±1% 0402 |
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| SW1 | Button_Switch_SMD_Push_1P1T_Wurth | Push button switch, generic, two pins |
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| Y1 | 12MHz | Four pin crystal, GND on pins 2 and 4 |
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