ASDR rev3
About the ASDR rev3 PCB
ASDR rev3 is an open source PCB design by blthree, published on GitHub. It is a 2-layer board measuring 59.7 × 84.7 mm, with 63 components from 28 distinct parts.
Other key parts include the LTC1044, LM324 and LM13700. By type, the board carries 30 resistors, 8 connectors, 7 capacitors, 4 ICs, 4 transistors and 2 diodes.
It belongs with the audio designs in this gallery, and the repository also holds 3 earlier revisions of it.
Main components on the ASDR rev3
ASDR rev3 bill of materials (BOM)
63 components, 28 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LTC1044 | DIP-8_W7.62mm_Socket | U1 |
| 2 | LM324 | DIP-14_W7.62mm_Socket | U2, U4 |
| 1 | LM13700 | DIP-16_W7.62mm_Socket | U3 |
| 3 | BC559 | TO-92_Inline | Q1, Q3, Q4 |
| 1 | BC548 | TO-92_Inline | Q2 |
| 1 | Jack-DC | BarrelJack_CUI_PJ-102AH_Horizontal | J1 |
| 1 | Gate In | CUI_SJ2-3592B-SMT-TR | J2 |
| 1 | VCA Audio In | CUI_SJ2-3592B-SMT-TR | J3 |
| 1 | Glide Cntrl | CUI_SJ2-3592B-SMT-TR | J4 |
| 1 | Sample In | CUI_SJ2-3592B-SMT-TR | J5 |
| 1 | VCA Out | CUI_SJ2-3592B-SMT-TR | J6 |
| 1 | Glide Out | CUI_SJ2-3592B-SMT-TR | J7 |
| 1 | Power Out | JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J8 |
| 4 | 100K | JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | RV_1, RV_2, RV_3, RV_4 |
| 3 | 1M | JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | RV_A1, RV_D1, RV_R1 |
| 1 | 10K | JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | RV_S1 |
| 2 | D | D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2 |
| 3 | 10uF | C_Disc_D5.0mm_W2.5mm_P5.00mm | C1, C2, C5 |
| 1 | 10nF | C_Disc_D5.0mm_W2.5mm_P5.00mm | C3 |
| 2 | 100nF | C_Disc_D5.0mm_W2.5mm_P5.00mm | C4, C6 |
Show 8 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1uF | C_Disc_D5.0mm_W2.5mm_P5.00mm | C7 |
| 6 | 33K | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R1, R10, R20, R21, R22, R25 |
| 8 | 1K | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R2, R4, R11, R14, R16, R18, R29, R30 |
| 1 | 22K | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R3 |
| 6 | 10K | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R5, R12, R13, R15, R17, R23 |
| 7 | 1M | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R6, R7, R8, R9, R26, R27, R28 |
| 1 | 100K | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R19 |
| 1 | 5K | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R24 |
ASDR rev3 design files
The KiCad project lives in the blthree/synth_schematics repository on GitHub; these links point at the commit this page was built from.
- LayoutASDR/ASDR_rev3.kicad_pcb
ASDR rev3: common questions
How big is the ASDR rev3 PCB?
The ASDR rev3 measures 59.7 × 84.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ASDR rev3?
63 components, from 28 distinct parts. The full bill of materials is listed on this page.
Where can I download the ASDR rev3 design files?
From the blthree/synth_schematics repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the ASDR rev3 design in my own project?
The repository has no license, so all rights stay with blthree. Use it as a reference, and ask the author before reusing the design.
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Earlier revisions in the repo: ASDR_rev2, ASDR_rev1, ASDR
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