# dieter-rams-rt-20-radio ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** blueant - **Created:** 3/20/2026 - **Last Updated:** 3/20/2026 - **Visibility:** Public ## Key Components ### H1 — [Mounting Hole 3.2mm DIN965 Pad](https://www.flux.ai/adrian95/mounting-hole-32mm-din965-pad~aio.md) - Role: Mechanical mounting - Package: M3 mounting hole - Part Type: Connector - Role Details: Intended as isolated PCB mounting holes for enclosure mounting **Pins:** - Pin_1 ### H2 — [Mounting Hole 3.2mm DIN965 Pad](https://www.flux.ai/adrian95/mounting-hole-32mm-din965-pad~aio.md) - Part Type: Connector - Role Details: Intended as isolated PCB mounting holes for enclosure mounting - Package: M3 mounting hole - Role: Mechanical mounting **Pins:** - Pin_1 ### H3 — [Mounting Hole 3.2mm DIN965 Pad](https://www.flux.ai/adrian95/mounting-hole-32mm-din965-pad~aio.md) - Role Details: Intended as isolated PCB mounting holes for enclosure mounting - Package: M3 mounting hole - Part Type: Connector - Role: Mechanical mounting **Pins:** - Pin_1 ### H4 — [Mounting Hole 3.2mm DIN965 Pad](https://www.flux.ai/adrian95/mounting-hole-32mm-din965-pad~aio.md) - Role Details: Intended as isolated PCB mounting holes for enclosure mounting - Package: M3 mounting hole - Part Type: Connector - Role: Mechanical mounting **Pins:** - Pin_1 ### IC1 — [MAX98357AETE+T](https://www.flux.ai/adrian95/max98357aeteplust~wk.md) - Role Details: Mono I2S Class-D amplifier for first-pass tabletop radio audio output - Manufacturer Name: Analog Devices Inc./Maxim Integrated - Package: TQFN-16 - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/max98357a-max98357b.pdf - Manufacturer Part Number: MAX98357AETE+T - Role: Audio Amplifier **Pins:** - ~SD_MODE [pin 4] - BCLK [pin 16] - DIN [pin 1] - GAIN_SLOT [pin 2] - GND_1 [pin 3] - GND_2 [pin 11] - GND_3 [pin 15] - LRCLK [pin 14] - N.C._1 [pin 5] - N.C._2 [pin 6] - N.C._3 [pin 12] - N.C._4 [pin 13] - OUTN [pin 10] - OUTP [pin 9] - THERMAL_PAD [pin 17] - VDD_1 [pin 7] - VDD_2 [pin 8] ### IC2 — [MAX98357AETE+T](https://www.flux.ai/adrian95/max98357aeteplust~wk.md) - Manufacturer Part Number: MAX98357AETE+T - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/max98357a-max98357b.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Mono I2S Class-D amplifier for first-pass tabletop radio audio output - Part Type: Integrated Circuit - Package: TQFN-16 - Manufacturer Name: Analog Devices Inc./Maxim Integrated - Role: Audio Amplifier **Pins:** - ~SD_MODE [pin 4] - BCLK [pin 16] - DIN [pin 1] - GAIN_SLOT [pin 2] - GND_1 [pin 3] - GND_2 [pin 11] - GND_3 [pin 15] - LRCLK [pin 14] - N.C._1 [pin 5] - N.C._2 [pin 6] - N.C._3 [pin 12] - N.C._4 [pin 13] - OUTN [pin 10] - OUTP [pin 9] - THERMAL_PAD [pin 17] - VDD_1 [pin 7] - VDD_2 [pin 8] ### IC3 — [MAX98357AETE+T](https://www.flux.ai/adrian95/max98357aeteplust~wk.md) - Package: TQFN-16 - Manufacturer Name: Analog Devices Inc./Maxim Integrated - Role Details: Mono I2S Class-D amplifier for first-pass tabletop radio audio output - Role: Audio Amplifier - Manufacturer Part Number: MAX98357AETE+T - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/max98357a-max98357b.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit **Pins:** - ~SD_MODE [pin 4] - BCLK [pin 16] - DIN [pin 1] - GAIN_SLOT [pin 2] - GND_1 [pin 3] - GND_2 [pin 11] - GND_3 [pin 15] - LRCLK [pin 14] - N.C._1 [pin 5] - N.C._2 [pin 6] - N.C._3 [pin 12] - N.C._4 [pin 13] - OUTN [pin 10] - OUTP [pin 9] - THERMAL_PAD [pin 17] - VDD_1 [pin 7] - VDD_2 [pin 8] ### J1 — [UJ20-C-V-G-SMT-P16-TR-65](https://www.flux.ai/adrian95/uj20-c-v-g-smt-p16-tr-65~lat.md) - Manufacturer Part Number: UJ20-C-V-G-SMT-P16-TR-65 - Package or Case Code: UJ20CVGSMTP16TR65 - Part Type: USB C - Role: Power Input - Manufacturer Name: Same Sky - Package: USB-C SMT - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.cuidevices.com/product/resource/digikeypdf/uj20-c-v-g-smt-p16-tr-65.pdf - Role Details: USB-C receptacle for 5V system power input and optional native USB connection to ESP32-S3 **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - DUMMY_1 [pin 1] - DUMMY_2 [pin 2] - DUMMY_3 [pin 3] - DUMMY_4 [pin 4] - GND_1 [pin A1] - GND_2 [pin A12] - GND_3 [pin B1] - GND_4 [pin B12] - SBU1 [pin A8] - SBU2 [pin B8] - VBUS_1 [pin A4] - VBUS_2 [pin A9] - VBUS_3 [pin B4] - VBUS_4 [pin B9] ### J2 — [Waveshare SSD1327](https://www.flux.ai/vasy_skral/waveshare-ssd1327~yiq.md) - Package: Module - Manufacturer Name: Waveshare - Role Details: Small center OLED display for metadata, source, network status, and battery UI - Manufacturer Part Number: SSD1327 - Part Type: Display Device - Role: Display - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.waveshare.com/1.5inch-oled-module.htm **Pins:** - CLK [pin 4] - CS [pin 3] - DC [pin 2] - DIN [pin 5] - GND [pin 7] - NC [pin 6] - RST [pin 1] - VCC [pin 8] ### J3 — [UJ20-C-V-G-SMT-P16-TR-65](https://www.flux.ai/adrian95/uj20-c-v-g-smt-p16-tr-65~lat.md) - Package: USB-C SMT - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Same Sky - Datasheet URL: https://www.cuidevices.com/product/resource/digikeypdf/uj20-c-v-g-smt-p16-tr-65.pdf - Role Details: USB-C receptacle for 5V system power input and optional native USB connection to ESP32-S3 - Manufacturer Part Number: UJ20-C-V-G-SMT-P16-TR-65 - Part Type: USB C - Role: Power Input - Package or Case Code: UJ20CVGSMTP16TR65 **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - DUMMY_1 [pin 1] - DUMMY_2 [pin 2] - DUMMY_3 [pin 3] - DUMMY_4 [pin 4] - GND_1 [pin A1] - GND_2 [pin A12] - GND_3 [pin B1] - GND_4 [pin B12] - SBU1 [pin A8] - SBU2 [pin B8] - VBUS_1 [pin A4] - VBUS_2 [pin A9] - VBUS_3 [pin B4] - VBUS_4 [pin B9] ### J4 — [Waveshare SSD1327](https://www.flux.ai/vasy_skral/waveshare-ssd1327~yiq.md) - Role: Display - Datasheet URL: https://www.waveshare.com/1.5inch-oled-module.htm - Role Details: Small center OLED display for metadata, source, network status, and battery UI - Manufacturer Name: Waveshare - Manufacturer Part Number: SSD1327 - Package: Module - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Display Device **Pins:** - CLK [pin 4] - CS [pin 3] - DC [pin 2] - DIN [pin 5] - GND [pin 7] - NC [pin 6] - RST [pin 1] - VCC [pin 8] ### J5 — [UJ20-C-V-G-SMT-P16-TR-65](https://www.flux.ai/adrian95/uj20-c-v-g-smt-p16-tr-65~lat.md) - Datasheet URL: https://www.cuidevices.com/product/resource/digikeypdf/uj20-c-v-g-smt-p16-tr-65.pdf - Role Details: USB-C receptacle for 5V system power input and optional native USB connection to ESP32-S3 - Role: Power Input - Manufacturer Name: Same Sky - License: https://creativecommons.org/licenses/by/4.0/ - Package: USB-C SMT - Manufacturer Part Number: UJ20-C-V-G-SMT-P16-TR-65 - Package or Case Code: UJ20CVGSMTP16TR65 - Part Type: USB C **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - DUMMY_1 [pin 1] - DUMMY_2 [pin 2] - DUMMY_3 [pin 3] - DUMMY_4 [pin 4] - GND_1 [pin A1] - GND_2 [pin A12] - GND_3 [pin B1] - GND_4 [pin B12] - SBU1 [pin A8] - SBU2 [pin B8] - VBUS_1 [pin A4] - VBUS_2 [pin A9] - VBUS_3 [pin B4] - VBUS_4 [pin B9] ### J6 — [Waveshare SSD1327](https://www.flux.ai/vasy_skral/waveshare-ssd1327~yiq.md) - Role: Display - Role Details: Small center OLED display for metadata, source, network status, and battery UI - Datasheet URL: https://www.waveshare.com/1.5inch-oled-module.htm - Package: Module - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Display Device - Manufacturer Part Number: SSD1327 - Manufacturer Name: Waveshare **Pins:** - CLK [pin 4] - CS [pin 3] - DC [pin 2] - DIN [pin 5] - GND [pin 7] - NC [pin 6] - RST [pin 1] - VCC [pin 8] ### J7 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Role: Battery Connector - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: 2-pin JST-PH battery connector for single-cell Li-ion pack - Manufacturer Name: JST Sales America - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Part Type: Connector - Package: THT 2-pin **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J8 — [S2B-PH-K-S(LF)(SN)](https://www.flux.ai/adrian95/s2b-ph-k-slfsn~brb.md) - Manufacturer Part Number: S2B-PH-K-S(LF)(SN) - Part Type: Connector - Role Details: 2-pin speaker output connector for internal driver wiring - Package: THT 2-pin right-angle - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: JST Sales America Inc. - Role: Speaker Connector - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/ePH.pdf **Pins:** - P1 [pin 1] - P2 [pin 2] ### SW3 — [EC12D1564402](https://www.flux.ai/vasy_skral/ec12d1564402~1ol.md) - Package: THT Encoder - Part Type: Rotary encoder - Manufacturer Part Number: EC12D1564402 - Role: User Control - Manufacturer Name: ALPSALPINE - Datasheet URL: https://datasheet.lcsc.com/lcsc/2011041404_ALPSALPINE-EC12D1564402_C444933.pdf - Role Details: Front-panel rotary encoder with push switch for radio navigation and volume control **Pins:** - A [pin A] - B [pin B] - C [pin C] - S1 [pin S1] - S2 [pin S2] ### SW4 — [EC12D1564402](https://www.flux.ai/vasy_skral/ec12d1564402~1ol.md) - Part Type: Rotary encoder - Role Details: Front-panel rotary encoder with push switch for radio navigation and volume control - Datasheet URL: https://datasheet.lcsc.com/lcsc/2011041404_ALPSALPINE-EC12D1564402_C444933.pdf - Manufacturer Name: ALPSALPINE - Package: THT Encoder - Role: User Control - Manufacturer Part Number: EC12D1564402 **Pins:** - A [pin A] - B [pin B] - C [pin C] - S1 [pin S1] - S2 [pin S2] ### U1 — 44phh thick spacer v2 - Role Details: Imported from STEP model 44phh thick spacer v2 for enclosure fit and 3D mechanical reference - Package: Custom - Package or Case Code: TO - Role: Mechanical spacer **Pins:** - P1 ### U2 — [MCP73871-2CCI/ML](https://www.flux.ai/adrian95/mcp73871-2cciml~xz9.md) - Part Type: Integrated Circuit - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/MCP73871-Data-Sheet-20002090E.pdf - Manufacturer Part Number: MCP73871-2CCI/ML - Package: QFN-20 - Role Details: Single-cell Li-ion charger and power-path manager for USB powered operation and battery charging - License: https://creativecommons.org/licenses/by/4.0/ - Role: Battery Charging - Manufacturer Name: Microchip Technology **Pins:** - ~PG [pin 6] - ~TE [pin 9] - CE [pin 17] - EP [pin 21] - IN_1 [pin 18] - IN_2 [pin 19] - OUT_1 [pin 1] - OUT_2 [pin 20] - PROG1 [pin 13] - PROG2 [pin 4] - PROG3 [pin 12] - SEL [pin 3] - STAT1/~LBO [pin 8] - STAT2 [pin 7] - THERM [pin 5] - VBAT_1 [pin 14] - VBAT_2 [pin 15] - VBAT_SENSE [pin 16] - VPCC [pin 2] - VSS_1 [pin 10] - VSS_2 [pin 11] ### U3 — [MCP73871-2CCI/ML](https://www.flux.ai/adrian95/mcp73871-2cciml~xz9.md) - Role: Battery Charging - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Microchip Technology - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/MCP73871-Data-Sheet-20002090E.pdf - Role Details: Single-cell Li-ion charger and power-path manager for USB powered operation and battery charging - Package: QFN-20 - Part Type: Integrated Circuit - Manufacturer Part Number: MCP73871-2CCI/ML **Pins:** - ~PG [pin 6] - ~TE [pin 9] - CE [pin 17] - EP [pin 21] - IN_1 [pin 18] - IN_2 [pin 19] - OUT_1 [pin 1] - OUT_2 [pin 20] - PROG1 [pin 13] - PROG2 [pin 4] - PROG3 [pin 12] - SEL [pin 3] - STAT1/~LBO [pin 8] - STAT2 [pin 7] - THERM [pin 5] - VBAT_1 [pin 14] - VBAT_2 [pin 15] - VBAT_SENSE [pin 16] - VPCC [pin 2] - VSS_1 [pin 10] - VSS_2 [pin 11] ### U4 — [MCP73871-2CCI/ML](https://www.flux.ai/adrian95/mcp73871-2cciml~xz9.md) - Role Details: Single-cell Li-ion charger and power-path manager for USB powered operation and battery charging - Part Type: Integrated Circuit - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/MCP73871-Data-Sheet-20002090E.pdf - Manufacturer Part Number: MCP73871-2CCI/ML - Package: QFN-20 - License: https://creativecommons.org/licenses/by/4.0/ - Role: Battery Charging - Manufacturer Name: Microchip Technology **Pins:** - ~PG [pin 6] - ~TE [pin 9] - CE [pin 17] - EP [pin 21] - IN_1 [pin 18] - IN_2 [pin 19] - OUT_1 [pin 1] - OUT_2 [pin 20] - PROG1 [pin 13] - PROG2 [pin 4] - PROG3 [pin 12] - SEL [pin 3] - STAT1/~LBO [pin 8] - STAT2 [pin 7] - THERM [pin 5] - VBAT_1 [pin 14] - VBAT_2 [pin 15] - VBAT_SENSE [pin 16] - VPCC [pin 2] - VSS_1 [pin 10] - VSS_2 [pin 11] ### U5 — [ME6211C33M5G-N](https://www.flux.ai/jecstronic/me6211c33m5g-n~a2.md) - Part Type: LDO - Manufacturer Name: MICRONE(Nanjing Micro One Elec) - Role: Regulation - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811131510_MICRONE-Nanjing-Micro-One-Elec-ME6211C33M5G-N_C82942.pdf - Package: SOT-23-5 - Manufacturer Part Number: ME6211C33M5G-N - Role Details: 3.3V LDO regulator from charger system output to digital rail **Pins:** - CE - NC - VIN - VOUT - VSS *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/blueant/dieter-rams-rt-20-radio~n9](https://www.flux.ai/blueant/dieter-rams-rt-20-radio~n9).* --- *Generated from [https://www.flux.ai/blueant/dieter-rams-rt-20-radio~n9](https://www.flux.ai/blueant/dieter-rams-rt-20-radio~n9)*