2 layers27.9 × 48.3 mm
TLV320ADC6120 Board
IsaacHo072/STM32-USB-Microphone-Interface
USB Audio Class Device with STM32G431CB and TLV320ADC6120
33 parts1
4 layers71.1 × 50.8 mm
Stm32 audio class device
IsaacHo072/STM32-USB-Microphone-Interface1USB Audio Class Device with STM32G431CB and TLV320ADC6120
- Size
- 71.1 × 50.8 mm
- Copper layers
- 4
- Thickness
- 0.99 mm
- Parts
- 64
- Nets
- 69
- Pads
- 234
- Tracks, vias
- 466, 87
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 17 Feb 2022
- Updated
- 31 Oct 2023
Overview
Stm32 audio class device is an open-source printed circuit board by IsaacHo072, from the IsaacHo072/STM32-USB-Microphone-Interface repository on GitHub. It is a 4-layer board of 71.1 × 50.8 mm with 64 parts on 69 nets, routed with 466 tracks and 87 vias.
It is built around the STM32G431CBT6, TPS7A0533PDBV and B3U-1000P, with the E8124-015-01 and USBLC6-2SC6 among its other parts. Its parts include 19 capacitors, 13 resistors, 10 connectors, 3 diodes and 2 ICs. It belongs with the audio and music boards and the STM32 boards of this library.
Main components
5
STM32G431CBT6
LQFP-48(7x7)-40℃~+85℃ 1.71V~3.6V 128KB 12bit 12bit 170MHz 32 Bit 32KB 38 ARM Cortex-M4F Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
TPS7A0533PDBV
SOT-23-5-40℃~+125℃@(Tj) 1 180uVrms 1uA 200mA 235mV@(200mA) 3.3V 40dB@(1MHz) 5.5V Fixed Over Current Protection、Over Temperature Protection Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
B3U-1000P
SMD,3x2.5mm-25℃~+70℃ 1.53N 1.6mm 12V 2.5mm 3mm 50mA Round Button SMD(SMT) Tab SPST Surface Mount,Vertical SMD,3x2.5mm Tactile Switches ROHSOmronTactile Switches
E8124-015-01
UncategorisedPULSE ELECTRONICS
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
README
README.mdSTM32-USB-Microphone-Interface
USB Audio Class Device with STM32G431CB and TLV320ADC6120
The PCB is working, but not fully verified since the I2C + I2S driver for TLV320ADC6120 haven't been written yet.
Some changes needed to be made to the STM32 board, for revision B:
- Move all components to the top of the board, so it could be reflowed at once
- Change the USB-C connector to a more popular and cheaper one
- RST button have the wrong footprint, missing the positioning hole
Software development:
| Task | Status | Finished? |
|---|---|---|
| Setup STM32G431 as a USB Audio Class Device in STM32CubeIDE | in progress |
|
| TLV320ADC6120 I2C Control | ||
| TLV320ADC6120 I2S transfer with DMA |
Parts
64| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 100nF | Capacitor_SMD:C_0603_1608Metric | C6, C8, C10, C11, C13, C15, C17, C18, C19 |
| 4 | 1uF | Capacitor_SMD:C_0603_1608Metric | C2, C7, C14, C16 |
| 4 | 3.3k | Resistor_SMD:R_0603_1608Metric | R10, R11, R12, R13 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric | R5, R8, R9 |
| 3 | Conn_01x10 | Connector_JST:JST_PH_B10B-PH-K_1x10_P2.00mm_Vertical | J4, J5, J7 |
| 2 | 0R | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | 20pF | Capacitor_SMD:C_0603_1608Metric | C9, C12 |
| 2 | 2k | Resistor_SMD:R_0603_1608Metric | R6, R7 |
| 2 | 30pF | Capacitor_SMD:C_0603_1608Metric | C3, C5 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R3, R4 |
| 2 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3, J6 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D1, D2 |
| 1 | 10nF | Capacitor_SMD:C_0603_1608Metric | C4 |
| 1 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 5V, 500mA | Fuse:Fuse_0805_2012Metric | F1 |
| 1 | B3U-1000P | digikey-footprints:Switch_Tactile_SMD_B3U-1000P | S1 |
| 1 | Conn_01x04 | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | J10 |
| 1 | Conn_01x05 | Connector_JST:JST_PH_B5B-PH-K_1x05_P2.00mm_Vertical | J9 |
| 1 | Conn_01x08 | Connector_JST:JST_PH_B8B-PH-K_1x08_P2.00mm_Vertical | J8 |
| 1 | Conn_ARM_JTAG_SWD_10 | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical | J2 |
| 1 | Crystal | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y2 |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | E8124-015-01 | digikey-footprints:USB-C_Female_E8124-015-01 | J1 |
| 1 | G*** | kibuzzard-620D28D6 | kibuzzard-620D28D6 |
| 1 | G*** | kibuzzard-620D29B6 | kibuzzard-620D29B6 |
| 1 | G*** | kibuzzard-620D288B | kibuzzard-620D288B |
| 1 | G*** | kibuzzard-620D2A22 | kibuzzard-620D2A22 |
| 1 | G*** | kibuzzard-620D29A8 | kibuzzard-620D29A8 |
| 1 | G*** | kibuzzard-620D2901 | kibuzzard-620D2901 |
| 1 | G*** | kibuzzard-620D2934 | kibuzzard-620D2934 |
| 1 | G*** | kibuzzard-620D2969 | kibuzzard-620D2969 |
| 1 | G*** | kibuzzard-620D28EA | kibuzzard-620D28EA |
| 1 | G*** | kibuzzard-620D295B | kibuzzard-620D295B |
| 1 | G*** | kibuzzard-620D28C3 | kibuzzard-620D28C3 |
| 1 | G*** | kibuzzard-620D2952 | kibuzzard-620D2952 |
| 1 | G*** | kibuzzard-620D2924 | kibuzzard-620D2924 |
| 1 | STM32G431CBT6 | eec:STMicroelectronics-LQFP48-5B-0-2-MFG | U1 |
| 1 | TPS7A0533PDBV | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | USBLC6-2SC6 | digikey-footprints:SOT23-6L | D3 |
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Questions
How big is the Stm32 audio class device PCB?
It measures 71.1 × 50.8 mm and has 4 copper layers, 0.99 mm thick.
What parts does the Stm32 audio class device use?
64 parts, built around the STM32G431CBT6, TPS7A0533PDBV, B3U-1000P and E8124-015-01. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Stm32 audio class device KiCad files?
From the IsaacHo072/STM32-USB-Microphone-Interface repository on GitHub, at the commit this page was made from: the board is KiCad Files/STM32/stm32_audio_class_device.kicad_pcb and its schematic KiCad Files/STM32/stm32_audio_class_device.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Stm32 audio class device design in my own project?
Its repository states no licence, so its author keeps all rights: ask IsaacHo072 before reusing the design.