# Class D Audio Amp ## Description This is a class d amplifier with both Bluetooth and Audio Jack connectivity. The power should be a regulated 24 vdc. This project is centralized around the TPA3116D2 class D audio amplifier. ## Project Details - **Owner:** scottgp - **Created:** 12/27/2023 - **Last Updated:** 1/9/2024 - **Visibility:** Public - **Stars:** 1 - **Copies:** 2 ## Key Components ### IC1 — [TPS56339DDCR](https://www.flux.ai/vasyl/tps56339ddcr~8y9.md) - Manufacturer Part Number: TPS56339DDCR - Part Type: Integrated Circuit - Manufacturer Name: Texas Instruments - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2ftps56339 **Pins:** - BOOT [pin 6] - EN [pin 5] - FB [pin 4] - GND [pin 1] - SW [pin 2] - VIN [pin 3] ### J1 — [Pin Header 01x07 2.54mm Horizontal](https://www.flux.ai/adrian95/pin-header-01x07-254mm-horizontal~g6w.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] ### J2 — [2-Position Screw Terminal](https://www.flux.ai/corynrobinson/2-position-screw-terminal~s4.md) - Datasheet URL: https://www.we-online.com/katalog/datasheet/691137710002.pdf - Manufacturer Name: Würth Elektrik - Part Type: Connector - Manufacturer Part Number: 691137710002 **Pins:** - P1 [pin 1] - P2 [pin 2] ### J3 — [Pin Header 01x08 2.54mm Horizontal](https://www.flux.ai/adrian95/pin-header-01x08-254mm-horizontal~0e0.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] ### J4 — [2-Position Screw Terminal](https://www.flux.ai/corynrobinson/2-position-screw-terminal~s4.md) - Part Type: Connector - Manufacturer Part Number: 691137710002 - Datasheet URL: https://www.we-online.com/katalog/datasheet/691137710002.pdf - Manufacturer Name: Würth Elektrik **Pins:** - P1 [pin 1] - P2 [pin 2] ### J4 - input Audio Switch — [ST-0337D00-071-1A2H](https://www.flux.ai/jecstronic/st-0337d00-071-1a2h~vc0.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://datasheet.lcsc.com/lcsc/2105241717_G-Switch-ST-0337D00-071-1A2H_C2829972.pdf - Manufacturer Name: G-Switch - Part Type: Connector - Manufacturer Part Number: ST-0337D00-071-1A2H **Pins:** - AUDIO_L [pin 7] - AUDIO_R [pin 3] - DETECT_1 [pin 6] - DETECT_2 [pin 4] - GND [pin 1] - MIC [pin 2] - SWITCH [pin 5] ### J6 — [2-Position Screw Terminal](https://www.flux.ai/corynrobinson/2-position-screw-terminal~s4.md) - Part Type: Connector - Manufacturer Part Number: 691137710002 - Datasheet URL: https://www.we-online.com/katalog/datasheet/691137710002.pdf - Manufacturer Name: Würth Elektrik **Pins:** - P1 [pin 1] - P2 [pin 2] ### J6 - output audio Switch — [ST-0337D00-071-1A2H](https://www.flux.ai/jecstronic/st-0337d00-071-1a2h~vc0.md) - Part Type: Connector - Manufacturer Name: G-Switch - Datasheet URL: https://datasheet.lcsc.com/lcsc/2105241717_G-Switch-ST-0337D00-071-1A2H_C2829972.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: ST-0337D00-071-1A2H **Pins:** - AUDIO_L [pin 7] - AUDIO_R [pin 3] - DETECT_1 [pin 6] - DETECT_2 [pin 4] - GND [pin 1] - MIC [pin 2] - SWITCH [pin 5] ### LED2 — [LED 0402](https://www.flux.ai/jecstronic/led-0402~lkg.md) - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### LED3 — [LED 0402](https://www.flux.ai/jecstronic/led-0402~lkg.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### next — [Push Button](https://www.flux.ai/jharwinbarrozo/push-button~eqk.md) - Manufacturer Part Number: B3FS-1050P - Manufacturer Name: OMRON - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf - Part Type: Switch **Pins:** - P1 [pin 1] - P2 [pin 3] ### pause/play — [Push Button](https://www.flux.ai/jharwinbarrozo/push-button~eqk.md) - Part Type: Switch - Manufacturer Name: OMRON - Manufacturer Part Number: B3FS-1050P - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf **Pins:** - P1 [pin 1] - P2 [pin 3] ### prev — [Push Button](https://www.flux.ai/jharwinbarrozo/push-button~eqk.md) - Part Type: Switch - Manufacturer Name: OMRON - Manufacturer Part Number: B3FS-1050P - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf **Pins:** - P1 [pin 1] - P2 [pin 3] ### Q1 — [MMDT2222A-7-F](https://www.flux.ai/jecstronic/mmdt2222a-7-f~xv.md) - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds30125.pdf - Part Type: Transistor - Manufacturer Name: Diodes Incorporated - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: MMDT2222A-7-F **Pins:** - B1 [pin 2] - B2 [pin 5] - C1 [pin 6] - C2 [pin 3] - E1 [pin 1] - E2 [pin 4] ### U1 — [TPA3116D2](https://www.flux.ai/jecstronic/tpa3116d2~2va.md) - Datasheet URL: https://www.ti.com/lit/ds/symlink/tpa3116d2.pdf - Manufacturer Part Number: TPA3116D2 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Manufacturer Name: Texas Instruments **Pins:** - AM0 [pin 15] - AM1 [pin 14] - AM2 [pin 13] - AVCC [pin 17] - BSNL [pin 20] - BSNR [pin 26] - BSPL [pin 24] - BSPR [pin 30] - FAULTZ [pin 3] - GAIN/SLV [pin 8] - GND [pin 28] - GND [pin 22] - GND [pin 9] - GND [pin 25] - GVDD [pin 7] - LINN [pin 11] - LINP [pin 10] - MODSEL [pin 1] - MUTE [pin 12] - OUTNL [pin 21] - OUTNR [pin 27] - OUTPL [pin 23] - OUTPR [pin 29] - PLIMIT [pin 6] - PVCC [pin 32] - PVCC [pin 31] - PVCC [pin 18] - PVCC [pin 19] - RINN [pin 5] - RINP [pin 4] - SDZ [pin 2] - SYNC [pin 16] ### U2 — [RN52-I/RM](https://www.flux.ai/jecstronic/rn52-irm~ix.md) - Part Type: Module - Manufacturer Part Number: RN52-I/RM - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/RN52-PB_v1_0r.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Microchip Technology **Pins:** - AGND [pin 39] - AICO0 [pin 4] - GND [pin 1] - GND@1 [pin 18] - GND@2 [pin 27] - GND@3 [pin 44] - GND@4 [pin 45] - GND@5 [pin 46] - GND@6 [pin 47] - GND@7 [pin 48] - GND@8 [pin 49] - GND@9 [pin 50] - GPIO10 [pin 10] - GPIO11 [pin 9] - GPIO12 [pin 7] - GPIO13 [pin 8] - GPIO2 [pin 3] - GPIO3 [pin 2] - GPIO4 [pin 5] - GPIO5 [pin 6] - GPIO6 [pin 20] - GPIO7 [pin 19] - GPIO9 [pin 11] - LED0 [pin 33] - LED1 [pin 32] - MIC_BIAS [pin 34] - MIC_L- [pin 37] - MIC_L+ [pin 35] - MIC_R- [pin 38] - MIC_R+ [pin 36] - PCM_CLK [pin 26] - PCM_IN [pin 23] - PCM_OUT [pin 24] - PCM_SYNC [pin 25] - PWREN [pin 21] - SPI_MISO [pin 29] - SPI_MOSI [pin 31] - SPI_SCK [pin 30] - SPI_SS [pin 28] - SPKR_L- [pin 41] - SPKR_L+ [pin 43] - SPKR_R- [pin 40] - SPKR_R+ [pin 42] - UART_CTS [pin 15] - UART_RTS [pin 14] - UART_TX [pin 16] - UARTRX [pin 17] - USBD- [pin 12] - USBD+ [pin 13] - VDD [pin 22] ### vol down — [Push Button](https://www.flux.ai/jharwinbarrozo/push-button~eqk.md) - Manufacturer Name: OMRON - Manufacturer Part Number: B3FS-1050P - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf - Part Type: Switch **Pins:** - P1 [pin 1] - P2 [pin 3] ### vol up — [Push Button](https://www.flux.ai/jharwinbarrozo/push-button~eqk.md) - Part Type: Switch - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809271215_Omron-Electronics-B3FS-1050P_C231326.pdf - Manufacturer Part Number: B3FS-1050P - Manufacturer Name: OMRON **Pins:** - P1 [pin 1] - P2 [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/scottgp/class-d-audio-amp~nz](https://www.flux.ai/scottgp/class-d-audio-amp~nz).* --- *Generated from [https://www.flux.ai/scottgp/class-d-audio-amp~nz](https://www.flux.ai/scottgp/class-d-audio-amp~nz)*