4 layers81.9 × 95 mm
2 layers89 × 44 mm
Development of custom Audison DRC interface
- Size
- 89 × 44 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 85
- Nets
- 63
- Pads
- 269
- Tracks, vias
- 345, 255
- Pours
- 22
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 16 Aug 2024
- Updated
- 13 Dec 2025
Overview
CDRC is an open-source printed circuit board by lilindian16, from the lilindian16/customDRC repository on GitHub. It is a 2-layer board of 89 × 44 mm with 85 parts on 63 nets, routed with 345 tracks and 255 vias.
It is built around the ESP32-WROOM-32UE-N16, RCLAMP3324P-ES and SN65HVD75DR, with the CC0603KRX7R9BB104, CL21A226MAQNNNE and CL31B106KBHNNNE among its other parts. Its parts include 25 resistors, 16 capacitors, 6 connectors, 5 ICs and 3 diodes. It belongs with the interfaces and adapters boards and the ESP32 boards of this library.
Main components
12
ESP32-WROOM-32UE-N16
SMD,18x19.2mm-40℃~+85℃ -98dBm 112mA 2.4GHz 20dBm 239mA 3V~3.6V Bluetooth4.2 ESP32-DOWD-V3、ESP32-DOWDR2-V3 UART、SDIO、SPI、I2C、GPIO SMD,19.2x18mm WiFi Modules ROHSEspressif SystemsWiFi ModulesRCLAMP3324P-ES
DFN2510-10L0.6pF 12V 1uA 3V 4.5A 4V 60W ESD Four channels IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Unidirectional DFN2510-10L ESD and Surge Protection (TVS/ESD) ROHSElecSuperESD And Surge Protection (TVS/ESD)
SN65HVD75DR
SOP-8SOP-8 RS-485 / RS-422 ICs ROHSElecSuperRS-485 / RS-422 ICs
CC0603KRX7R9BB104
0603100nF 50V X7R ±10% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMT
CL21A226MAQNNNE
080522uF 25V X5R ±20% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
CL31B106KBHNNNE
120610uF 50V X7R ±10% 1206 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
S5B-PH-SM4-TB(LF)(SN)
SMD,P=2mm,卧贴-25℃~+85℃ 1 100V 13.9mm 1x5P 2A 2mm 5 5.5mm 5P 8.6mm Auxiliary Solder Pin Beige Copper alloy PA PH Surface Mount, Right Angle Tin UL94V-0 SMD,P=2mm,卧贴 Wire To Board Connector ROHSJSTWire To Board Connector
RH-5001
-2.5mm Black Pin Type (Through-Board) - Test Points / Test Rings ROHSronghePogo Pin Spring Probe Connector
ERZ1HM101E12OT
插件,D6.3xL12mm100uF 12mm 2.5mm 50V 6.3mm 6000hrs@105℃ ±20% 插件,D6.3xL12mm Aluminum Electrolytic Capacitors - Leaded ROHSAISHIAluminum Electrolytic Capacitors - Leaded
SWPA4030S3R9MT
SMD,4x4mm2.1A 3.9uH 3A 74mΩ ±20% SMD,4x4mm Power Inductors ROHSSunlordPower Inductors
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
BSMD1206-025-33V
1206-40℃~+85℃ 1.9mm 100ms 1mm 2.5Ω 250mA 3.6mm 33V 350mΩ 40A 500mA 600mW 1206 Resettable Fuses ROHSBHFUSEResettable Fuses
README
README.mdCustom DRC for the Bit10 DSP
Reverse Engineering
Bit10 DRC Schema
CustomDRC
Bare PCB
Assembled Board
Boards can be programmed via TC2030 header or 2.54mm pin header (left unpopulated). Once programmed, further updates can be handled via the OTA Update interface through the local webapp
Board Bringup - Scope Captures
Parts
85| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | TestPoint_Small | TestPoint:TestPoint_Pad_D1.5mm | TP102, TP103, TP203, TP204, TP301, TP302, TP303, TP304, TP305, TP306, TP307, TP308, TP501, TP502, TP503, TP504 +2 |
| 16 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R301, R305, R401, R502, R504, R505, R506, R507, R508, R509, R510, R511, R512, R513, R514, R515 |
| 8 | 0u1 | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C201, C301, C501, C502, C503, C504, C505, C506 |
| 4 | 330R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R402, R403, R501, R503 |
| 4 | MountingHole | MountingHole:MountingHole_2.7mm_M2.5_ISO7380_Pad_TopBottom | H101, H102, H103, H104 |
| 3 | 22u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C204, C205, C402 |
| 2 | 10R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R302, R304 |
| 2 | 10u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C202, C203 |
| 2 | 1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C401, C403 |
| 2 | ESD224DQA | Package_DFN_QFN:Diodes_UDFN-10_1.0x2.5mm_P0.5mm | U501, U502 |
| 2 | JST_PH_S5B-PH-SM4 | Connector_JST:JST_PH_S5B-PH-SM4-TB_1x05-1MP_P2.00mm_Horizontal | J501, J504 |
| 2 | TestPoint_Small | TestPoint:TestPoint_Keystone_5000-5004_Miniature | TP101, TP508 |
| 1 | 0R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R201 |
| 1 | 100U | CDRC_Footprints:Capacitor_D6.3xL12mm_SMD | C206 |
| 1 | 120R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R303 |
| 1 | 330R | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R516 |
| 1 | 3u9 | Inductor_SMD:L_Cenker_CKCS4030 | L201 |
| 1 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q501 |
| 1 | AP63203WU-7 | Package_TO_SOT_SMD:TSOT-23-6 | U201 |
| 1 | BSMD1206-025-33V | Fuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F201 |
| 1 | Conn_01x06 | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J301 |
| 1 | DSP Header | CDRC_Footprints:M208900705 | J101 |
| 1 | ESP32-WROOM-32UE-R2 | RF_Module:ESP32-WROOM-32UE | U401 |
| 1 | JST_PH_S2B-PH-SM4 | Connector_JST:JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | J502 |
| 1 | LOGO | CDRC_Footprints:qr_code | G*** |
| 1 | NetTie_2 | NetTie:NetTie-2_SMD_Pad0.5mm | NT1 |
| 1 | SM712 | Package_TO_SOT_SMD:SOT-23 | D301 |
| 1 | SN65HVD75DR | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | IC301 |
| 1 | TC2030NL | Connector:Tag-Connect_TC2030-IDC-FP_2x03_P1.27mm_Vertical | J401 |
| 1 | US1M | Diode_SMD:D_SMA_Handsoldering | D202 |
| 1 | WHITE OR BLUE | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D401 |
The 84 most common of 85 parts.
Questions
How big is the CDRC PCB?
It measures 89 × 44 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CDRC use?
85 parts, built around the ESP32-WROOM-32UE-N16, RCLAMP3324P-ES, SN65HVD75DR and CC0603KRX7R9BB104. 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 CDRC KiCad files?
From the lilindian16/customDRC repository on GitHub, at the commit this page was made from: the board is Hardware/CustomDRC/PCB/CDRC.kicad_pcb and its schematic Hardware/AudisonDRCReverseEngineered/PCB/AudisonDRCReverseEngineered.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the CDRC design in my own project?
Its repository states no licence, so its author keeps all rights: ask lilindian16 before reusing the design.
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