# Colossal Maroon TV Glasses ## Description Ultra-Stable 850 nm, 1 mW VCSEL Module with Low-Noise Constant-Current Driver and Analog Modulation ## Project Details - **Owner:** jkahala - **Created:** 12/2/2025 - **Last Updated:** 12/2/2025 - **Visibility:** Public ## Key Components ### Q1 — [BSS138-G](https://www.flux.ai/lcsc/bss138-g.md) - Manufacturer Name: onsemi(安森美) - Package or Case Code: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR - JLCPCB Part Class: Extended Part - Role Details: MOSFET current driver for VCSEL bias - Manufacturer Part Number: BSS138-G - Role: Switching - LCSC Part Number: C890264 **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### U1 — [IRL81A](https://www.flux.ai/kicad-part-library/irl81a.md) - Part Type: LED THT - Role Details: 850 nm VCSEL laser diode - Manufacturer Part Number: IRL81A - Role: Signal Generation - Package or Case Code: LED_SideEmitter_Rectangular_W4.5mm_H1.6mm - Datasheet URL: http://www.osram-os.com/Graphics/XPic0/00203825_0.pdf **Pins:** - A [pin 2] - K [pin 1] ### U2 — [ADR4525ARZ](https://www.flux.ai/lcsc/adr4525arz.md) - Package or Case Code: SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL - JLCPCB Part Class: Extended Part - Part Type: Voltage References - Manufacturer Name: ADI(亚德诺) - Product Info Url: https://lcsc.com/product-detail/Pre-ordered-Products_Analog-Devices_ADR4525ARZ_Analog-Devices-ADI-LINEAR-ADR4525ARZ_C579306.html - Manufacturer Part Number: ADR4525ARZ - Role: Voltage Reference - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Analog-Devices-ADR4525ARZ_C579306.pdf - LCSC Part Number: C579306 - Role Details: Precision voltage reference for constant-current driver **Pins:** - DNC [pin 8] - GND [pin 4] - NIC [pin 7] - NIC [pin 5] - NIC [pin 1] - NIC [pin 3] - VIN [pin 2] - VOUT [pin 6] ### U3 — [OPA188AIDBVR](https://www.flux.ai/jecstronic/opa188aidbvr.md) - 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%2Fopa188 - Role Details: Low-noise op-amp for current regulation loop - Role: Amplification - Part Type: Operational Amplifier (OP-AMP) - Manufacturer Part Number: OPA188AIDBVR **Pins:** - - [pin 4] - + [pin 3] - OUTPUT [pin 1] - V- [pin 2] - V+ [pin 5] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/jkahala/colossal-maroon-tv-glasses](https://www.flux.ai/jkahala/colossal-maroon-tv-glasses).* --- *Generated from [https://www.flux.ai/jkahala/colossal-maroon-tv-glasses](https://www.flux.ai/jkahala/colossal-maroon-tv-glasses)*