# Laptop Webcam Module ## Description The Open-Source Laptop Webcam Module is a critical component of our open-source laptop initiative. This module will provide high-definition video capture capabilities while adhering to the principles of open-source design. The module must integrate seamlessly with the laptop’s mainboard, ensuring compatibility, ease of assembly, and potential for future upgrades ## Project Details - **Owner:** collinsemasi - **Created:** 8/22/2024 - **Last Updated:** 11/14/2024 - **Visibility:** Public - **Objectives:** Primary Objective: To design and develop a fully functional, high-definition webcam module for integration into an open-source laptop, prioritizing open-source principles, ease of assembly, and upgrade potential. ● Secondary Objectives: ○ Ensure modular design to allow easy replacement or upgrades. ○ Achieve a balance between cost-efficiency and performance. ○ Develop firmware and hardware that are fully open-source, ensuring transparency and community collaboration - **Key features:** Image Sensor: ○ Sensor Model: Omnivision OV2740 ○ Resolution: 1080p HD video at 60fps ○ Interface: MIPI-CSI2 for image data transmission ○ Control Interface: SCCB for sensor control ○ Power Requirements: Powered by locally generated LDOs (TLV740P series) ○ Challenges: Address the lack of freely available documentation for ASICs and avoid proprietary solutions that conflict with open-source principles. 2. Microphone: ○ Type: Dual MEMS microphones for stereo audio ○ Output: PWM (Pulse Density Modulation) output for audio data ○ Interface: Direct connection to the motherboard’s embedded controller ○ Power Supply: Separate 3.3V LDO from the 5V input routed to the webcam board 3. Ambient Light Sensor: ○ Type: [Specific Sensor Model] 2 PRD [TK_FFRTJ VER] V1.2024 ○ Interface: I2C interface routed to the embedded controller ○ Power Supply: Powered by the same 3.3V LDO as the microphones ○ Mounting: Positioned on an add-on board with decoupling capacitor and I2C bus pull-up resistors 4. Capacitive Touch Sensors: ○ Type: TTP232-CA6 dual-channel sensing ICs ○ Function: Controls WiFi, camera, and microphone activation/deactivation ○ Interface: Direct output to the motherboard’s embedded controller ○ Customization: Includes optional capacitors for sensitivity tuning and latches for power-cycle state retention 5. Connectivity: ○ Primary Connector: Molex SlimStack 505550 with 40 pins at 0.4mm pitch ○ Backup Connector: Hirose FH35C series FPC connector for high pin density and retention force ○ Routing: Double-layer FPC for signal transmission from webcam PCB to mainboard - **Technical Requirements:** Power Requirements: ○ The module must operate within the power budget allocated for the laptop’s peripheral components, typically provided by the display assembly. ○ Voltage Rails: The image sensor, microphones, and ambient light sensor will be powered by individual low-dropout regulators (LDOs) to ensure clean, noise-free operation. Each power rail will be monitored to maintain stability across various operating conditions. ○ Efficiency: All components, especially the LDOs and sensors, must be optimized for low power consumption to extend battery life without compromising performance. 3. Interface Requirements: ○ MIPI-CSI2 Interface: The primary data interface for the image sensor will be routed directly to the motherboard, with considerations for signal integrity 3 PRD [TK_FFRTJ VER] V1.2024 over the flexible PCB. This includes careful impedance matching and shielding where necessary. ○ Audio Interface: The microphones will provide a PWM output, which will be fed directly to the motherboard's embedded controller. The interface must ensure low latency and high fidelity in audio capture. ○ I2C Interface: The ambient light sensor and touch sensors will communicate with the motherboard via I2C. This bus must be robust against noise and capable of supporting multiple devices with minimal interference. 4. Component Selection: ○ Components must be selected based on their availability, longevity, and open-source documentation compliance. Priority should be given to components that have established support in the open-source community and are readily available from multiple suppliers. ○ Packaging Considerations: All components must be available in compact packages that support the thin profile of the webcam module, such as QFN, WLCSP, or small LDO packages like the 1mm x 1mm X2SON used in the TLV740P series. ## Key Components ### J1 — Board to Board Connector_5055504020 - COMMENT: 5055504020 - MANUFACTURER 1 PRT. NR.: 505550-4020 - MANUFACTURER 1: Molex **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 33 [pin 33] - 34 [pin 34] - 35 [pin 35] - 36 [pin 36] - 37 [pin 37] - 38 [pin 38] - 39 [pin 39] - 4 [pin 4] - 40 [pin 40] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] - MT [pin MT] - MT [pin MT] - MT [pin MT] - MT [pin MT] ### J10 — PAD_3-2199250-3 - COMMENT: 3-2199250-3 - MANUFACTURER 1 PRT. NR.: 3-2199250-3 - MANUFACTURER 1: TE Connectivity **Pins:** - 1 [pin 1] ### J11 — PAD_3-2199250-3 - MANUFACTURER 1: TE Connectivity - COMMENT: 3-2199250-3 - MANUFACTURER 1 PRT. NR.: 3-2199250-3 **Pins:** - 1 [pin 1] ### J12 — Inverter_74AUP1G14GM,115 - COMMENT: 74AUP1G14GM,115 - MANUFACTURER 1 PRT. NR.: 74AUP1G14GM,115 - MANUFACTURER 1: Nexperia **Pins:** - A [pin 2] - GND [pin 3] - VCC [pin 6] - Y [pin 4] ### J12 — Inverter_74AUP1G14GM,115 - COMMENT: 74AUP1G14GM,115 - MANUFACTURER 1 PRT. NR.: 74AUP1G14GM,115 - MANUFACTURER 1: Nexperia **Pins:** - A [pin 2] - GND [pin 3] - VCC [pin 6] - Y [pin 4] ### J13 — D-FLOP_SMG-W-2,0x1,2x1,25-AU - COMMENT: 74AUP1G74GT,115 - MANUFACTURER 1: Nexperia - MANUFACTURER 1 PRT. NR.: 74AUP1G74GT,115 **Pins:** - CP [pin 1] - D [pin 2] - GND [pin 4] - Q [pin 5] - Q\ [pin 3] - R\D [pin 6] - S\D [pin 7] - VCC [pin 8] ### J14 — PAD_3-2199250-3 - COMMENT: 3-2199250-3 - MANUFACTURER 1 PRT. NR.: 3-2199250-3 - MANUFACTURER 1: TE Connectivity **Pins:** - 1 [pin 1] ### J15 — PAD_3-2199250-3 - MANUFACTURER 1: TE Connectivity - MANUFACTURER 1 PRT. NR.: 3-2199250-3 - COMMENT: 3-2199250-3 **Pins:** - 1 [pin 1] ### J16 — Inverter_74AUP1G14GM,115 - MANUFACTURER 1 PRT. NR.: 74AUP1G14GM,115 - COMMENT: 74AUP1G14GM,115 - MANUFACTURER 1: Nexperia **Pins:** - A [pin 2] - GND [pin 3] - VCC [pin 6] - Y [pin 4] ### J16 — Inverter_74AUP1G14GM,115 - MANUFACTURER 1 PRT. NR.: 74AUP1G14GM,115 - COMMENT: 74AUP1G14GM,115 - MANUFACTURER 1: Nexperia **Pins:** - A [pin 2] - GND [pin 3] - VCC [pin 6] - Y [pin 4] ### J17 — D-FLOP_SMG-W-2,0x1,2x1,25-AU - MANUFACTURER 1 PRT. NR.: 74AUP1G74GT,115 - MANUFACTURER 1: Nexperia - COMMENT: 74AUP1G74GT,115 **Pins:** - CP [pin 1] - D [pin 2] - GND [pin 4] - Q [pin 5] - Q\ [pin 3] - R\D [pin 6] - S\D [pin 7] - VCC [pin 8] ### J18 — PAD_3-2199250-3 - MANUFACTURER 1: TE Connectivity - COMMENT: 3-2199250-3 - MANUFACTURER 1 PRT. NR.: 3-2199250-3 **Pins:** - 1 [pin 1] ### J19 — PAD_3-2199250-3 - MANUFACTURER 1 PRT. NR.: 3-2199250-3 - COMMENT: 3-2199250-3 - MANUFACTURER 1: TE Connectivity **Pins:** - 1 [pin 1] ### J20 — Inverter_74AUP1G14GM,115 - MANUFACTURER 1: Nexperia - COMMENT: 74AUP1G14GM,115 - MANUFACTURER 1 PRT. NR.: 74AUP1G14GM,115 **Pins:** - A [pin 2] - GND [pin 3] - VCC [pin 6] - Y [pin 4] ### J20 — Inverter_74AUP1G14GM,115 - MANUFACTURER 1: Nexperia - COMMENT: 74AUP1G14GM,115 - MANUFACTURER 1 PRT. NR.: 74AUP1G14GM,115 **Pins:** - A [pin 2] - GND [pin 3] - VCC [pin 6] - Y [pin 4] ### J21 — D-FLOP_SMG-W-2,0x1,2x1,25-AU - MANUFACTURER 1: Nexperia - COMMENT: 74AUP1G74GT,115 - MANUFACTURER 1 PRT. NR.: 74AUP1G74GT,115 **Pins:** - CP [pin 1] - D [pin 2] - GND [pin 4] - Q [pin 5] - Q\ [pin 3] - R\D [pin 6] - S\D [pin 7] - VCC [pin 8] ### J22 — PAD_3-2199250-3 - COMMENT: 3-2199250-3 - MANUFACTURER 1 PRT. NR.: 3-2199250-3 - MANUFACTURER 1: TE Connectivity **Pins:** - 1 [pin 1] ### LED1 — LED RGB Low Profile_LTRBR37G-4R4S-0125-0 - COMMENT: LTRBR37G-4R4S-0125-0 - MANUFACTURER 1: ams OSRAM - MANUFACTURER 1 PRT. NR.: LTRBR37G-4R4S-0125-0 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### LED2 — LED RGB Low Profile_LTRBR37G-4R4S-0125-0 - MANUFACTURER 1 PRT. NR.: LTRBR37G-4R4S-0125-0 - MANUFACTURER 1: ams OSRAM - COMMENT: LTRBR37G-4R4S-0125-0 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### LED3 — LED RGB Low Profile_LTRBR37G-4R4S-0125-0 - MANUFACTURER 1 PRT. NR.: LTRBR37G-4R4S-0125-0 - MANUFACTURER 1: ams OSRAM - COMMENT: LTRBR37G-4R4S-0125-0 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### LED4 — LED RGB Low Profile_LTRBR37G-4R4S-0125-0 - COMMENT: LTRBR37G-4R4S-0125-0 - MANUFACTURER 1: ams OSRAM - MANUFACTURER 1 PRT. NR.: LTRBR37G-4R4S-0125-0 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### LED5 — LED RGB Low Profile_LTRBR37G-4R4S-0125-0 - MANUFACTURER 1: ams OSRAM - MANUFACTURER 1 PRT. NR.: LTRBR37G-4R4S-0125-0 - COMMENT: LTRBR37G-4R4S-0125-0 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### LED6 — LED RGB Low Profile_LTRBR37G-4R4S-0125-0 - MANUFACTURER 1: ams OSRAM - MANUFACTURER 1 PRT. NR.: LTRBR37G-4R4S-0125-0 - COMMENT: LTRBR37G-4R4S-0125-0 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### LED7 — LED RGB Low Profile_LTRBR37G-4R4S-0125-0 - COMMENT: LTRBR37G-4R4S-0125-0 - MANUFACTURER 1: ams OSRAM - MANUFACTURER 1 PRT. NR.: LTRBR37G-4R4S-0125-0 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### LED8 — LED RGB Low Profile_LTRBR37G-4R4S-0125-0 - COMMENT: LTRBR37G-4R4S-0125-0 - MANUFACTURER 1 PRT. NR.: LTRBR37G-4R4S-0125-0 - MANUFACTURER 1: ams OSRAM **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### Q1 — N-Channel MOSFET_SSM3K15ACT,L3F - MANUFACTURER 1 PRT. NR.: SSM3K15ACT,L3F - MANUFACTURER 1: Toshiba - COMMENT: SSM3K15ACT,L3F **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q2 — N-Channel MOSFET_SSM3K15ACT,L3F - COMMENT: SSM3K15ACT,L3F - MANUFACTURER 1: Toshiba - MANUFACTURER 1 PRT. NR.: SSM3K15ACT,L3F **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q3 — N-Channel MOSFET_SSM3K15ACT,L3F - COMMENT: SSM3K15ACT,L3F - MANUFACTURER 1: Toshiba - MANUFACTURER 1 PRT. NR.: SSM3K15ACT,L3F **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q4 — N-Channel MOSFET_SSM3K15ACT,L3F - COMMENT: SSM3K15ACT,L3F - MANUFACTURER 1: Toshiba - MANUFACTURER 1 PRT. NR.: SSM3K15ACT,L3F **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q5 — P-Channel MOSFET_SSM3J56ACT,L3F - MANUFACTURER 1 PRT. NR.: SSM3J56ACT,L3F - MANUFACTURER 1: Toshiba - COMMENT: SSM3J56ACT,L3F **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q6 — P-Channel MOSFET_SSM3J56ACT,L3F - MANUFACTURER 1 PRT. NR.: SSM3J56ACT,L3F - MANUFACTURER 1: Toshiba - COMMENT: SSM3J56ACT,L3F **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q7 — N-Channel MOSFET_SSM3K15ACT,L3F - MANUFACTURER 1 PRT. NR.: SSM3K15ACT,L3F - MANUFACTURER 1: Toshiba - COMMENT: SSM3K15ACT,L3F **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### TP1 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP10 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP11 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP12 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP13 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP14 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP15 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP16 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP17 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP18 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP19 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP2 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP20 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP21 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP22 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP23 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP24 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP25 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP26 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP27 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP28 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP29 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP3 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP30 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP31 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP4 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP5 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP6 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP7 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP8 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### TP9 — Testpoint 0.5mm - COMMENT: Testpoint 0.5mm **Pins:** - TP [pin TP] ### U1 — LDO 3.3V_TLV74033PDQNR - MANUFACTURER 1: Texas Instruments - COMPONENTLINK1DESCRIPTION: Datasheet URL - COMPONENTLINK1URL: https://www.ti.com/lit/ds/symlink/tlv740p.pdf - COMMENT: TLV74033PDQNR - MANUFACTURER 1 PRT. NR.: TLV74033PDQNR **Pins:** - EN [pin 3] - EXP [pin 5] - GND [pin 2] - IN [pin 4] - OUT [pin 1] ### U10 — Image Sensor_OV2740 - MANUFACTURER 1: OV02740-H34A-Z - MANUFACTURER 1 PRT. NR.: OmniVision - COMMENT: OV02740-H34A-Z **Pins:** - AGND [pin B7] - AGND [pin C1] - AVDD [pin A1] - AVDD [pin C7] - AVDD [pin E1] - DOGND [pin B1] - DOGND [pin D7] - DOGND [pin E3] - DOVDD [pin A3] - DOVDD [pin C6] - DVDD [pin A7] - DVDD [pin D3] - DVDD [pin E7] - EGND [pin C5] - FSIN [pin B3] - GPIO [pin A5] - MCN [pin D5] - MCP [pin E5] - MDN0 [pin D4] - MDN1 [pin D6] - MDP0 [pin E4] - MDP1 [pin E6] - PVDD [pin C4] - PWDNB [pin B2] - SCL [pin B6] - SDA [pin B5] - SID [pin A6] - STROBE [pin A4] - TM [pin C2] - VH [pin D1] - VN [pin D2] - XSHUTDN [pin C3] - XSHUTDN2 [pin A2] - XVCLK [pin B4] ### U11 — LDO 1.2V_TLV74012PDQNR - MANUFACTURER 1: Texas Instruments - COMMENT: TLV74012PDQNR - MANUFACTURER 1 PRT. NR.: TLV74012PDQNR **Pins:** - EN [pin 3] - EXP [pin 5] - GND [pin 2] - IN [pin 4] - OUT [pin 1] ### U12 — LDO 2.8V_TLV74028PDQNR - COMMENT: TLV74028PDQNR - MANUFACTURER 1 PRT. NR.: TLV74028PDQNR - MANUFACTURER 1: Texas Instruments **Pins:** - EN [pin 3] - EXP [pin 5] - GND [pin 2] - IN [pin 4] - OUT [pin 1] ### U13 — Crystal Oscillator_ECS-2520MV-240-BN-TR - MANUFACTURER 1 PRT. NR.: ECS-2520MV-240-BN-TR - MANUFACTURER 1: ECS - COMMENT: ECS-2520MV-240-BN-TR **Pins:** - EN [pin 1] - GND [pin 2] - OUT [pin 3] - VCC [pin 4] ### U2 — LDO 3.3V_TLV74033PDQNR - MANUFACTURER 1 PRT. NR.: TLV74033PDQNR - MANUFACTURER 1: Texas Instruments - COMPONENTLINK1DESCRIPTION: Datasheet URL - COMPONENTLINK1URL: https://www.ti.com/lit/ds/symlink/tlv740p.pdf - COMMENT: TLV74033PDQNR **Pins:** - EN [pin 3] - EXP [pin 5] - GND [pin 2] - IN [pin 4] - OUT [pin 1] ### U3 — Dual key capacitive touch sensing_TTP232-CA6 - MANUFACTURER 1 PRT. NR.: TTP232-CA6 - MANUFACTURER 1: Tontek Design Tech - COMMENT: TTP232-CA6 **Pins:** - TP0 [pin 6] - TP1 [pin 4] - TPQ0 [pin 1] - TPQ1 [pin 3] - VDD [pin 5] - VSS [pin 2] ### U4 — Dual key capacitive touch sensing_TTP232-CA6 - MANUFACTURER 1 PRT. NR.: TTP232-CA6 - MANUFACTURER 1: Tontek Design Tech - COMMENT: TTP232-CA6 **Pins:** - TP0 [pin 6] - TP1 [pin 4] - TPQ0 [pin 1] - TPQ1 [pin 3] - VDD [pin 5] - VSS [pin 2] ### U5 — Dual key capacitive touch sensing_TTP232-CA6 - MANUFACTURER 1 PRT. NR.: TTP232-CA6 - MANUFACTURER 1: Tontek Design Tech - COMMENT: TTP232-CA6 **Pins:** - TP0 [pin 6] - TP1 [pin 4] - TPQ0 [pin 1] - TPQ1 [pin 3] - VDD [pin 5] - VSS [pin 2] ### U6 — Digital Microphone PDM_SPK0641HT4H-1 - MANUFACTURER 1 PRT. NR.: SPK0641HT4H-1 - MANUFACTURER 1: Knowles - COMMENT: SPK0641HT4H-1 **Pins:** - CLOCK [pin 2] - DATA [pin 1] - GND [pin 5] - GND [pin 6] - GND [pin 7] - GND [pin 8] - SELECT [pin 3] - VCC [pin 4] ### U7 — Digital Microphone PDM_SPK0641HT4H-1 - COMMENT: SPK0641HT4H-1 - MANUFACTURER 1: Knowles - MANUFACTURER 1 PRT. NR.: SPK0641HT4H-1 **Pins:** - CLOCK [pin 2] - DATA [pin 1] - GND [pin 5] - GND [pin 6] - GND [pin 7] - GND [pin 8] - SELECT [pin 3] - VCC [pin 4] ### U8 — Light Sensor Module R01 - COMMENT: Ambient Light Sensor Module R01 **Pins:** - GND [pin 2] - GND [pin 3] - GND [pin 4] - SCL [pin 6] - SDA [pin 5] - VCCA [pin 1] ### U9 — LDO 1.8V_TLV74018PDQNR - COMMENT: TLV74018PDQNR - MANUFACTURER 1: Texas Instruments - MANUFACTURER 1 PRT. NR.: TLV74018PDQNR **Pins:** - EN [pin 3] - EXP [pin 5] - GND [pin 2] - IN [pin 4] - OUT [pin 1] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/collinsemasi/laptop-webcam-module~le](https://www.flux.ai/collinsemasi/laptop-webcam-module~le).* --- *Generated from [https://www.flux.ai/collinsemasi/laptop-webcam-module~le](https://www.flux.ai/collinsemasi/laptop-webcam-module~le)*