Audio daughterboard
About the Audio daughterboard PCB
Audio daughterboard is an open source STM32 PCB design by Jaxc, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 90 × 155 mm, with 453 components from 135 distinct parts.
Its main chip is the STM32F730V8T6, from the STM32 family. Other key parts include the CY2305SXC-1HT, NE5532, WM8782SEDS, CS5361 and CS4344. By type, the board carries 207 resistors, 191 capacitors, 42 ICs, 7 inductors, 4 diodes and 2 transistors.
It belongs with the audio designs in this gallery.
Main components on the Audio daughterboard
Audio daughterboard bill of materials (BOM)
453 components, 135 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | CY2305SXC-1HT | SOIC-8_3.9x4.9mm_P1.27mm | U101, U102 |
| 14 | NE5532 | SOIC-8_3.9x4.9mm_P1.27mm | U201, U402, U403, U503, U906, U1003, U1004, U1006 +6 |
| 1 | CY2305SXC-1HT CS5361 | SOIC-24W_7.5x15.4mm_P1.27mm | U202 |
| 1 | WM8782SEDS NE5532 | SOIC-8_3.9x4.9mm_P1.27mm | U301 |
| 1 | CS5361 | SOIC-24W_7.5x15.4mm_P1.27mm | U302 |
| 1 | WM8782SEDS PCM1789 | TSSOP-24_4.4x7.8mm_P0.65mm | U401 |
| 1 | CS4344 PCM1789 | TSSOP-24_4.4x7.8mm_P0.65mm | U501 |
| 4 | NE5532 | SOIC-8_3.9x4.9mm_P1.27mm | U502, U1101, U1201, U1202 |
| 1 | CS4344 NE5532 | SOIC-8_3.9x4.9mm_P1.27mm | U601 |
| 1 | STM32F730V8T6 NE5532 | SOIC-8_3.9x4.9mm_P1.27mm | U701 |
| 1 | USBLC6-4SC6 TLV61046ADBVR | TSOT-23-6_HandSoldering | U801 |
| 1 | USB3300-EZK LM350_TO263-3 | TO-263-3_TabPin2 | U802 |
| 1 | LM350_TO263-3 | TO-263-3_TabPin2 | U803 |
| 1 | TPS61040DBV NE5532 | SOIC-8_3.9x4.9mm_P1.27mm | U901 |
| 1 | XL1509-ADJ NE5532 | SOIC-8_3.9x4.9mm_P1.27mm | U902 |
| 1 | WS3222D NE5532 | SOIC-8_3.9x4.9mm_P1.27mm | U903 |
| 1 | AMS1117-5.0 NE5532 | SOIC-8_3.9x4.9mm_P1.27mm | U904 |
| 1 | AP2171W LM1971M | SOIC-8_3.9x4.9mm_P1.27mm | U905 |
| 1 | 74HC08D NE5532 | SOIC-8_3.9x4.9mm_P1.27mm | U1001 |
| 1 | 6N137 NE5532 | SOIC-8_3.9x4.9mm_P1.27mm | U1002 |
Show 115 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | LM1971M | SOIC-8_3.9x4.9mm_P1.27mm | U1005, U1105, U1205 |
| 1 | TDA2822D NE5532 | SOIC-8_3.9x4.9mm_P1.27mm | U1203 |
| 1 | NE5532 STM32F030C8Tx | LQFP-48_7x7mm_P0.5mm | U1301 |
| 2 | NMOS | SOT-23-3 | Q601, Q602 |
| 2 | SS54 Red | LED_0805_2012Metric | D801, D802 |
| 2 | H5VL10B Red | LED_0805_2012Metric | D803, D804 |
| 6 | FerriteBead | L_0805_2012Metric | FB101, FB801, FB802, FB803, FB804, FB805 |
| 1 | l=22u | MSCD43 | L801 |
| 23 | 100nF | C_0603_1608Metric | C101, C102, C202, C203, C204, C205, C208, C209 +15 |
| 11 | 4.7uF | C_1206_3216Metric | C201, C206, C207, C210, C211, C311, C808, C811 +3 |
| 9 | 10uF | CP_Elec_4x5.8 | C212, C213, C312, C313, C916, C1015, C1016, C1115 +1 |
| 10 | 10UF/25V 4.7uF | C_1206_3216Metric | C301, C307, C310, C401, C402, C404, C407, C504 +2 |
| 8 | 10UF/25V 100nF | C_0603_1608Metric | C302, C304, C309, C409, C410, C505, C511, C1212 |
| 10 | 100NF/16V 100nF | C_0603_1608Metric | C303, C305, C308, C405, C406, C506, C601, C912 +2 |
| 8 | 100NF/16V 4.7uF | C_1206_3216Metric | C306, C403, C408, C501, C503, C801, C1306, C1307 |
| 7 | 100u | CP_Elec_6.3x7.7 | C412, C413, C415, C416, C513, C515, C516 |
| 8 | 1nF | C_0603_1608Metric | C417, C418, C419, C420, C517, C518, C519, C520 |
| 8 | 390pF | C_0603_1608Metric | C421, C422, C423, C424, C521, C522, C523, C524 |
| 4 | 2.2nF | C_0603_1608Metric | C425, C426, C525, C526 |
| 1 | 1UF/50V 4.7uF | C_1206_3216Metric | C502 |
| 2 | 10NF/50V 100nF | C_0603_1608Metric | C509, C510 |
| 3 | 10UF/25V 100u | CP_Elec_6.3x7.7 | C512, C604, C605 |
| 1 | 1UF/50V 47p | C_0603_1608Metric | C602 |
| 1 | 100NF/16V 47p | C_0603_1608Metric | C603 |
| 1 | 2.2UF/6.3V 100nF | C_0603_1608Metric | C701 |
| 1 | 2.2UF/6.3V 220uF | CP_Elec_4x5.8 | C702 |
| 1 | 100NF/16V 22pF | C_0603_1608Metric | C802 |
| 1 | 220UF 4.7uF | C_1206_3216Metric | C803 |
| 1 | 100NF/16V 220uF | CP_Elec_4x5.8 | C804 |
| 3 | 100NF/16V 10uF | CP_Elec_4x5.8 | C805, C915, C1216 |
| 1 | 4.7UF/25V 10uF | CP_Elec_4x5.8 | C806 |
| 1 | 4.7UF/25V 4.7uF | C_1206_3216Metric | C807 |
| 2 | 22pF | C_0603_1608Metric | C809, C810 |
| 2 | 220uF | CP_Elec_4x5.8 | C813, C814 |
| 1 | 10UF/25V 390pF | C_0603_1608Metric | C901 |
| 1 | 470UF/10V 22uF | CP_Elec_6.3x5.4 | C902 |
| 3 | 470UF/10V 10nF | C_0603_1608Metric | C903, C908, C909 |
| 1 | 1UF/50V 10nF | C_0603_1608Metric | C904 |
| 1 | 10NF/50V 10nF | C_0603_1608Metric | C905 |
| 2 | 22PF/50V 100nF | C_0603_1608Metric | C906, C907 |
| 3 | 470UF/10V 100nF | C_0603_1608Metric | C910, C913, C914 |
| 1 | 4.7UF/25V 10nF | C_0603_1608Metric | C911 |
| 7 | 470p | C_0603_1608Metric | C917, C918, C1017, C1018, C1117, C1118, C1218 |
| 4 | 2.7n | C_0603_1608Metric | C919, C1019, C1119, C1219 |
| 1 | 100NF/16V 390pF | C_0603_1608Metric | C1001 |
| 2 | 100NF/16V 22uF | CP_Elec_6.3x5.4 | C1002, C1102 |
| 12 | 10nF | C_0603_1608Metric | C1003, C1004, C1005, C1008, C1009, C1011, C1103, C1104 +4 |
| 1 | 220UF 390pF | C_0603_1608Metric | C1101 |
| 1 | 100U/10V 390pF | C_0603_1608Metric | C1201 |
| 1 | 100U/10V 22uF | CP_Elec_6.3x5.4 | C1202 |
| 2 | 22UF/16V 10nF | C_0603_1608Metric | C1203, C1204 |
| 1 | 100PF/50V 10nF | C_0603_1608Metric | C1205 |
| 2 | 100PF/50V 100nF | C_0603_1608Metric | C1206, C1309 |
| 3 | 220UF 100nF | C_0603_1608Metric | C1207, C1310, C1311 |
| 1 | 220UF 10nF | C_0603_1608Metric | C1208 |
| 1 | 100U/10V 10nF | C_0603_1608Metric | C1209 |
| 4 | 100U/10V 100nF | C_0603_1608Metric | C1210, C1214, C1301, C1302 |
| 1 | 100NF/16V 10nF | C_0603_1608Metric | C1211 |
| 1 | 100U/10V 10uF | CP_Elec_4x5.8 | C1215 |
| 1 | 100NF/16V 470p | C_0603_1608Metric | C1217 |
| 2 | 22UF/16V 100nF | C_0603_1608Metric | C1304, C1305 |
| 1 | 100PF/50V 4.7uF | C_1206_3216Metric | C1308 |
| 1 | 47P/50V 100nF | C_0603_1608Metric | C1312 |
| 14 | 2k15 | R_0603_1608Metric | R1, R413, R414, R415, R416, R513, R514, R515 +6 |
| 7 | 1k96 | R_0603_1608Metric | R2, R405, R406, R407, R408, R507, R508 |
| 30 | 10k | R_0603_1608Metric | R101, R102, R103, R104, R105, R106, R107, R108 +22 |
| 2 | 5K1 10k | R_0603_1608Metric | R301, R302 |
| 2 | 5K1 22k | R_0603_1608Metric | R401, R402 |
| 6 | 22k | R_0603_1608Metric | R403, R404, R611, R612, R701, R702 |
| 8 | 953R | R_0603_1608Metric | R409, R410, R411, R412, R509, R510, R511, R512 |
| 4 | 549R | R_0603_1608Metric | R417, R418, R517, R518 |
| 2 | 10K 22k | R_0603_1608Metric | R501, R502 |
| 2 | 470R 22k | R_0603_1608Metric | R503, R504 |
| 2 | 22K 1k96 | R_0603_1608Metric | R505, R506 |
| 2 | 10K 1k | R_0603_1608Metric | R601, R602 |
| 3 | 470R 100R | R_0603_1608Metric | R603, R604, R1001 |
| 2 | 22K 4k7 | R_0603_1608Metric | R605, R606 |
| 2 | 68R | R_0603_1608Metric | R609, R610 |
| 10 | 680R | R_0603_1608Metric | R801, R816, R924, R926, R1024, R1026, R1124, R1126 +2 |
| 4 | 100k | R_0603_1608Metric | R802, R1104, R1105, R1106 |
| 3 | 4K7 10k | R_0603_1608Metric | R804, R809, R1311 |
| 1 | 470R 2k15 | R_0603_1608Metric | R805 |
| 1 | 470R 100k | R_0603_1608Metric | R806 |
| 2 | 10K 100k | R_0603_1608Metric | R807, R906 |
| 3 | 4K7 100k | R_0603_1608Metric | R808, R813, R814 |
| 1 | 12K 10k | R_0603_1608Metric | R810 |
| 1 | 5K1 1k96 | R_0603_1608Metric | R811 |
| 1 | 5K1 1k | R_0603_1608Metric | R812 |
| 9 | 100R | R_0603_1608Metric | R901, R927, R929, R1027, R1029, R1127, R1129, R1227 +1 |
| 1 | 1K5 100k | R_0603_1608Metric | R904 |
| 1 | 18K 100k | R_0603_1608Metric | R905 |
| 1 | 220R 392R | R_0603_1608Metric | R907 |
| 1 | 10K 732R | R_0603_1608Metric | R908 |
| 11 | 732R | R_0603_1608Metric | R909, R913, R914, R1008, R1009, R1013, R1014, R1108 +3 |
| 7 | 348R | R_0603_1608Metric | R910, R915, R1010, R1015, R1110, R1115, R1215 |
| 7 | 133R | R_0603_1608Metric | R911, R916, R1011, R1016, R1111, R1116, R1216 |
| 5 | 392R | R_0603_1608Metric | R912, R1007, R1012, R1107, R1112 |
| 21 | 1k | R_0603_1608Metric | R917, R919, R920, R928, R930, R1017, R1019, R1020 +13 |
| 3 | 220R 100k | R_0603_1608Metric | R1004, R1005, R1006 |
| 2 | 22K 100R | R_0603_1608Metric | R1101, R1201 |
| 1 | 680R 100k | R_0603_1608Metric | R1204 |
| 2 | 1K3 100k | R_0603_1608Metric | R1205, R1206 |
| 1 | 22K 392R | R_0603_1608Metric | R1207 |
| 1 | 22K 732R | R_0603_1608Metric | R1208 |
| 1 | 100R 732R | R_0603_1608Metric | R1209 |
| 1 | 100R 348R | R_0603_1608Metric | R1210 |
| 1 | 10K 133R | R_0603_1608Metric | R1211 |
| 1 | 10K 392R | R_0603_1608Metric | R1212 |
| 2 | 4R7 732R | R_0603_1608Metric | R1213, R1214 |
| 2 | 22K 68R | R_0603_1608Metric | R1301, R1302 |
| 2 | 680R 10k | R_0603_1608Metric | R1303, R1304 |
| 2 | 1K3 10k | R_0603_1608Metric | R1305, R1306 |
| 2 | 22K 10k | R_0603_1608Metric | R1307, R1308 |
| 2 | 100R 10k | R_0603_1608Metric | R1309, R1310 |
| 2 | 4K7 68R | R_0603_1608Metric | R1313, R1314 |
Audio daughterboard design files
The KiCad project lives in the Jaxc/Magna repository on GitHub; these links point at the commit this page was built from.
Audio daughterboard: common questions
What microcontroller does the Audio daughterboard use?
The Audio daughterboard is built around the STM32F730V8T6, from the STM32 family.
How big is the Audio daughterboard PCB?
The Audio daughterboard measures 90 × 155 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Audio daughterboard?
453 components, from 135 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 Audio daughterboard design files?
From the Jaxc/Magna 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 Audio daughterboard design in my own project?
Yes, under the terms of its GPL-3.0 license, which Jaxc chose for the repository.
Can I test firmware for the Audio daughterboard without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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