# FrontRow prototype 01 ## Description Audio Processor Board with ADAU1701 SigmaDSP and XIAO ESP32C6 ## Project Details - **Owner:** dasara-labs - **Created:** 4/28/2025 - **Last Updated:** 12/18/2025 - **Visibility:** Public - **Software:** Arduino - **System Architecture:** ```mermaid flowchart TD subgraph PowerSubsystem PS[Power Subsystem] end subgraph Control MCU[XIAO ESP32C6] end subgraph DSP_Module DSP[ADAU1701 SigmaDSP] EEPROM[24LC EEPROM] end subgraph I_O Amp[Headphone Amplifier] end subgraph Connectors USB_C[USB-C Connector] Analog_In[Analog Inputs] Digital_In[Digital Inputs (I2S)] Headphone_Out[Headphone Out] Line_Out[Line Out] end USB_C --> PS PS --> MCU PS --> DSP PS --> Amp Analog_In --> DSP Digital_In --> DSP MCU -- I2C --> DSP MCU -- I2C --> EEPROM EEPROM -- I2C --> DSP DSP --> Amp Amp --> Headphone_Out DSP --> Line_Out ``` - **Manufacturing Quantity Target:** 10 - **License:** https://creativecommons.org/licenses/by/4.0/ - **Project Description:** Audio Processor Board with ADAU1701 SigmaDSP and XIAO ESP32C6 - **Power Requirements:** USB - **Connectivity:** USB - **Domain:** Consumer Electronics - **Project Name:** FrontRow prototype 01 ## Key Components ### D1 — [TPD4E02B04DQA](https://www.flux.ai/kicad-part-library/tpd4e02b04dqa~id.md) - Manufacturer Part Number: TPD4E02B04DQA - Role: Protection - Package: USON-10 - Role Details: ESD protection for USB-C CC and VBUS lines - Manufacturer Name: Texas Instruments Inc. - Datasheet URL: http://www.ti.com/lit/ds/symlink/tpd4e02b04.pdf - Package or Case Code: USON-10_2.5x1.0mm_P0.5mm **Pins:** - G [pin 3] - G [pin 8] - IO1 [pin 1] - IO2 [pin 2] - IO3 [pin 4] - IO4 [pin 5] - NC [pin 7] - NC [pin 6] - NC [pin 9] - NC [pin 10] ### D2 — [TPD3E001DRLR](https://www.flux.ai/kicad-part-library/tpd3e001drlr~6l.md) - Package or Case Code: SOT-553 - Manufacturer Part Number: TPD3E001DRLR - Role Details: ESD protection for headphone and line-out outputs - Datasheet URL: http://www.ti.com/lit/ds/symlink/tpd3e001.pdf - Role: Protection - Package: SOT-553 - Manufacturer Name: Texas Instruments Inc. **Pins:** - ~ [pin 5] - ~ [pin 3] - IO1 [pin 1] - IO2 [pin 2] - IO3 [pin 4] ### J1 — [SJ1-3533NG](https://www.flux.ai/vasy_skral/sj1-3533ng~lvo.md) - Manufacturer Part Number: SJ1-3533NG - Datasheet URL: https://www.cuidevices.com/product/resource/sj1-353xng.pdf - Manufacturer Name: CUI Devices - Role Details: 3.5 mm TRS stereo line-in and line-out jacks - Part Type: Connector - Role: Connector **Pins:** - R [pin 3] - S [pin 1] - T [pin 2] ### J1 — [Type-C-2.0-6Pin](https://www.flux.ai/jharwinbarrozo/type-c-20-6pin~wh.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/2204071830_CIKI-Type-C-2-0-6Pin_C2987385.pdf - Part Type: Connector - Manufacturer Name: CIKI - Role: Connector - Role Details: USB-C power-only receptacle with CC resistors - Manufacturer Part Number: Type-C-2.0-6Pin **Pins:** - CC1 - CC2 - GND - GND__1 - SHIELD - SHIELD__1 - SHIELD__2 - SHIELD__3 - V-BUS - V-BUS__1 ### J2 — [SJ1-3533NG](https://www.flux.ai/vasy_skral/sj1-3533ng~lvo.md) - Manufacturer Part Number: SJ1-3533NG - Manufacturer Name: CUI Devices - Datasheet URL: https://www.cuidevices.com/product/resource/sj1-353xng.pdf - Role: Connector - Part Type: Connector - Role Details: 3.5 mm TRS stereo line-in and line-out jacks **Pins:** - R [pin 3] - S [pin 1] - T [pin 2] ### J3 — [0022232031](https://www.flux.ai/adrian95/0022232031~ox7.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Manufacturer Name: Molex - Manufacturer Part Number: 0022232031 - Role: Connector - Datasheet URL: https://www.molex.com/pdm_docs/sd/022232031_sd.pdf - Role Details: Stereo-out 3-pin 2.54 mm header **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J4 — [61300411121](https://www.flux.ai/adrian95/61300411121~pw9.md) - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: HDRV4W95P0X254_1X4_1016X254X854P - Role: Connector - Role Details: I2S digital input header for nRF5340-CLAA-R7 - Manufacturer Part Number: 61300411121 - Part Type: Connector - Manufacturer Name: Wurth Elektronik - Datasheet URL: https://www.we-online.com/components/products/datasheet/61300411121.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### LED1 — [LED 0603 (1608 Metric)](https://www.flux.ai/jharwinbarrozo/led-0603-1608-metric~yk.md) - Role: LED - Role Details: DSP active indicator - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### S1 — [450404015514](https://www.flux.ai/adrian95/450404015514~xol.md) - Manufacturer Part Number: 450404015514 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Würth Elektronik - Role Details: Input-select SPDT slide switch - Role: Switch - Datasheet URL: https://www.we-online.com/components/products/datasheet/450404015514.pdf - Part Type: Switch **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - MP1 [pin MP1] - MP2 [pin MP2] - MP3 [pin MP3] - MP4 [pin MP4] ### TP1 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Manufacturer Part Number: 5019 - Role Details: Test pad for power rails, I2C, I2S, reset, boot - Manufacturer Name: Keystone Electronics - Part Type: Test Point - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Package or Case Code: 5019 - License: https://creativecommons.org/licenses/by/4.0/ - Role: Test Point **Pins:** - 1 [pin 1] ### TP10 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Manufacturer Part Number: 5019 - Part Type: Test Point - Manufacturer Name: Keystone Electronics - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: 5019 - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Role Details: Test pad for power rails, I2C, I2S, reset, boot - Role: Test Point **Pins:** - 1 [pin 1] ### TP2 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Role Details: Test pad for power rails, I2C, I2S, reset, boot - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Package or Case Code: 5019 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Keystone Electronics - Part Type: Test Point - Role: Test Point - Manufacturer Part Number: 5019 **Pins:** - 1 [pin 1] ### TP3 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Package or Case Code: 5019 - License: https://creativecommons.org/licenses/by/4.0/ - Role: Test Point - Manufacturer Name: Keystone Electronics - Part Type: Test Point - Manufacturer Part Number: 5019 - Role Details: Test pad for power rails, I2C, I2S, reset, boot **Pins:** - 1 [pin 1] ### TP4 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Role: Test Point - Manufacturer Name: Keystone Electronics - Part Type: Test Point - Manufacturer Part Number: 5019 - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Role Details: Test pad for power rails, I2C, I2S, reset, boot - Package or Case Code: 5019 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] ### TP5 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Manufacturer Name: Keystone Electronics - Part Type: Test Point - Role: Test Point - Manufacturer Part Number: 5019 - Role Details: Test pad for power rails, I2C, I2S, reset, boot - Package or Case Code: 5019 - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] ### TP6 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Manufacturer Name: Keystone Electronics - Part Type: Test Point - Role Details: Test pad for power rails, I2C, I2S, reset, boot - Manufacturer Part Number: 5019 - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Package or Case Code: 5019 - Role: Test Point - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] ### TP7 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Package or Case Code: 5019 - Role Details: Test pad for power rails, I2C, I2S, reset, boot - Role: Test Point - Manufacturer Part Number: 5019 - Part Type: Test Point - Manufacturer Name: Keystone Electronics **Pins:** - 1 [pin 1] ### TP8 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Role Details: Test pad for power rails, I2C, I2S, reset, boot - Package or Case Code: 5019 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 5019 - Role: Test Point - Manufacturer Name: Keystone Electronics - Part Type: Test Point **Pins:** - 1 [pin 1] ### TP9 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Package or Case Code: 5019 - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Test pad for power rails, I2C, I2S, reset, boot - Manufacturer Part Number: 5019 - Role: Test Point - Manufacturer Name: Keystone Electronics - Part Type: Test Point **Pins:** - 1 [pin 1] ### U1 — [ADAU1701JSTZ](https://www.flux.ai/jecstronic/adau1701jstz~p1h.md) - Manufacturer Part Number: ADAU1701JSTZ - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: SigmaDSP audio processor - Part Type: DSP Analog Device - Package: LQFP-48_7x7mm_P0.5mm - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/ADAU1701.pdf - Role: Signal Generation - Manufacturer Name: Analog Devices Inc. **Pins:** - ~RESET [pin 5] - ADC_RES [pin 3] - ADC0 [pin 2] - ADC1 [pin 4] - ADDR0 [pin 7] - ADDR1/CDATA/WB [pin 20] - AGND [pin 42] - AGND [pin 37] - AGND [pin 1] - AVDD [pin 36] - AVDD [pin 48] - CLATCH/WP [pin 21] - CM [pin 40] - DGND [pin 12] - DGND [pin 25] - DVDD [pin 24] - DVDD [pin 13] - FILTA [pin 47] - FILTD [pin 41] - IOVDD [pin 18] - MCLKI [pin 32] - MP0 [pin 11] - MP1 [pin 10] - MP10 [pin 16] - MP11 [pin 19] - MP2 [pin 29] - MP3 [pin 28] - MP4 [pin 8] - MP5 [pin 9] - MP6 [pin 15] - MP7 [pin 14] - MP8 [pin 27] - MP9 [pin 26] - OSCO [pin 31] - PGND [pin 33] - PLL_LF [pin 35] - PLL_MODE0 [pin 38] - PLL_MODE1 [pin 39] - PVDD [pin 34] - RSVD [pin 30] - SCL/CCLK [pin 23] - SDA/COUT [pin 22] - SELFBOOT [pin 6] - VDRIVE [pin 17] - VOUT0 [pin 46] - VOUT1 [pin 45] - VOUT2 [pin 44] - VOUT3 [pin 43] ### U2 — [Seeed Studio XIAO ESP32C6](https://www.flux.ai/seeedstudio/seeed-studio-xiao-esp32c6~3q.md) - Purchase Url: https://www.seeedstudio.com/Seeed-Studio-XIAO-ESP32C6-p-5884.html - wiki : https://wiki.seeedstudio.com/xiao_esp32c6_getting_started/ - Datasheet URL: https://files.seeedstudio.com/wiki/SeeedStudio-XIAO-ESP32C6/XIAO-ESP32-C6_v1.0_SCH_PDF_24028.pdf - Manufacturer Part Number: 113991254 - Role Details: Main MCU **Pins:** - 3V3 [pin 12] - 3V3_1 [pin 18] - 5V [pin 14] - BAT - [pin 21] - BAT + [pin 20] - BOOT_GPIO9 [pin 22] - D10_MOSI_GPIO18_SDIO-CMD [pin 11] - D7_RX_GPIO17 [pin 8] - D8_SCK_GPIO19_SDIO-CLK [pin 9] - D9_MISO_GPIO20_SDIO-DATA0 [pin 10] - EN [pin 24] - GND [pin 13] - GND_1 [pin 16] - GND_PAD [pin 19] - GPIO_TX_D6 [pin 7] - LP-GPIO0_GPIO0_0_D0 [pin 1] - LP-GPIO1_GPIO1_A1_D1 [pin 2] - LP-GPIO2_GPIO2_A2_D2 [pin 3] - LP-I2C-SCL_LB-GPIO7_GPIO7_MTDO [pin 15] - LP-I2C-SDA_LP-GPIO6_GPIO6_A6_MTCK [pin 17] - MTDI_A5_GPIO5_LB-GPIO5_LP-UART-TXD [pin 25] - MTMS_A4_GPIO4_LP-GPIO4_LP-UART-RXD [pin 23] - SDIO-DATA1_GPIO21_D3 [pin 4] - SDIO-DATA2_GPIO22_SDA_D4 [pin 5] - SDIO-DATA3_GPIO23_SCL_D5 [pin 6] ### U3 — [24LC512-E-SN](https://www.flux.ai/jecstronic/24lc512-e-sn~rci.md) - Manufacturer Name: Microchip - Manufacturer Part Number: 24LC512-E/SN - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/24AA512-24LC512-24FC512-512K-Bit-I2C-Serial-EEPROM-20001754Q.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Role Details: Self-boot I2C configuration storage for ADAU1701 **Pins:** - A0 [pin 1] - A1 [pin 2] - A2 [pin 3] - GND [pin 4] - SCL [pin 6] - SDA [pin 5] - VCC [pin 8] - WP [pin 7] ### U4 — [TPA6132A2RTET](https://www.flux.ai/vasyl/tpa6132a2rtet~kn.md) - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftpa6132a2 - Manufacturer Part Number: TPA6132A2RTET - Part Type: Integrated Circuit - Role: Amplification - Role Details: 5V headphone amplifier for driving 16–64Ω loads - Manufacturer Name: Texas Instruments - Package: 16-WQFN (3x3mm) **Pins:** - CPN [pin 9] - CPP [pin 11] - EN [pin 13] - EP [pin 17] - G0 [pin 6] - G1 [pin 7] - HPVDD [pin 12] - HPVSS [pin 8] - INL- [pin 1] - INL+ [pin 2] - INR- [pin 4] - INR+ [pin 3] - OUTL [pin 16] - OUTR [pin 5] - PGND [pin 10] - SGND [pin 15] - VDD [pin 14] ### U5 — [LP38693MP-3.3/NOPB](https://www.flux.ai/adrian95/lp38693mp-33nopb~m4z.md) - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.ti.com/lit/ds/symlink/lp38693-q1.pdf - Manufacturer Part Number: LP38693MP-3.3/NOPB - Role Details: Generate 3.3V rail for ESP32C6 and digital circuits - Role: Power Conversion - Manufacturer Name: Texas Instruments - Package: SOT-223 **Pins:** - EN [pin 1] - GND [pin 5] - IN [pin 4] - NC [pin 2] - OUT [pin 3] ### U6 — [TPS79318-EP](https://www.flux.ai/kicad-part-library/tps79318-ep~318.md) - Role Details: Generate 1.8V core rail for ADAU1701 - Manufacturer Name: Texas Instruments Inc. - Datasheet URL: http://www.ti.com/lit/ds/symlink/tps79333-ep.pdf - Manufacturer Part Number: TPS79318-EP - Package or Case Code: SOT-23-5 - Package: SOT-23-5 - Role: Power Conversion **Pins:** - BP [pin 4] - EN [pin 3] - GND [pin 2] - IN [pin 1] - OUT [pin 5] ### Y1 — [ABM3B-12.288MHZ-B2-T](https://www.flux.ai/adrian95/abm3b-12288mhz-b2-t~i28.md) - Manufacturer Name: Abracon LLC - Role Details: 12.288 MHz crystal for ADAU1701 clock input - Datasheet URL: https://abracon.com/Resonators/abm3b.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Package: 4-SMD - Role: Oscillator - Part Type: Oscillator - Manufacturer Part Number: ABM3B-12.288MHZ-B2-T **Pins:** - 1 [pin 1] - 3 [pin 3] - GND [pin 4] - GND [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/dasara-labs/frontrow-prototype-01~us](https://www.flux.ai/dasara-labs/frontrow-prototype-01~us).* --- *Generated from [https://www.flux.ai/dasara-labs/frontrow-prototype-01~us](https://www.flux.ai/dasara-labs/frontrow-prototype-01~us)*