# LVDS Differential PCB ## Description 4-layer controlled-impedance PCB template for RF/LVDS differential routing with 100 Ω differential pair design rules. ## Project Details - **Owner:** jbkkdoyle1 - **Created:** 6/22/2026 - **Last Updated:** 6/22/2026 - **Visibility:** Public - **Implementation Details:** PCB material FR-4; target board thickness 0.062 in / 62 mil / 1.57 mm. Current Flux Standard 4 Layer stackup totals 1.30 mm, so confirm final fab stackup with manufacturer before impedance signoff. ## Key Components ### J1 — [5-146280-4](https://www.flux.ai/lcsc/5-146280-4~eim9.md) - Manufacturer Part Number: 5-146280-4 - Connector Positions: 4 - Controlled Impedance: 100Ω - Package or Case Code: HDR-TH_4P-P2.54-V-M-1 - Datasheet URL: https://www.snapeda.com/parts/5-146280-4/TE%20Connectivity/datasheet/ - Manufacturer Name: TE Connectivity(泰科电子) - Role Details: LVDS source-side interface header: pin 1 VCC, pin 2 GND, pin 3 LVDS_P, pin 4 LVDS_N - Role: Isolation - Part Type: Pin Headers - JLCPCB Part Class: Extended Part - LCSC Part Number: C2895596 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J2 — [5-146280-4](https://www.flux.ai/lcsc/5-146280-4~eim9.md) - Controlled Impedance: 100Ω - JLCPCB Part Class: Extended Part - Part Type: Pin Headers - LCSC Part Number: C2895596 - Manufacturer Name: TE Connectivity(泰科电子) - Datasheet URL: https://www.snapeda.com/parts/5-146280-4/TE%20Connectivity/datasheet/ - Package or Case Code: HDR-TH_4P-P2.54-V-M-1 - Role: Isolation - Connector Positions: 4 - Manufacturer Part Number: 5-146280-4 - Role Details: LVDS receiver-side interface header: pin 1 VCC, pin 2 GND, pin 3 LVDS_P, pin 4 LVDS_N **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J3 — [95293-401A06LF](https://www.flux.ai/lcsc/95293-401a06lf~bhnz.md) - Power Requirements: 3.3 V logic interface on VCC_LVDS_3V3; logic low ≈ 0 V, logic high ≈ 3.3 V LVTTL/LVCMOS levels. - Manufacturer Part Number: 95293-401A06LF - Connector Positions: 6 - LCSC Part Number: C178297 - Part Type: Pin Headers - Role Details: Logic-side header notes: Pin 1 = VCC_LVDS_3V3 / 3.3 V logic supply; Pin 2 = GND / 0 V reference; Pin 3 = LOGIC_DIN1_3V3 input to U1 DIN1, 3.3 V LVTTL/LVCMOS expected; Pin 4 = LOGIC_ROUT1_3V3 output from U1 ROUT1, 3.3 V LVTTL/LVCMOS; Pin 5 = EN tied to VCC_LVDS_3V3, active-high enable at 3.3 V; Pin 6 = ~EN tied to GND, active-low enable held asserted at 0 V. - Role: Isolation - Manufacturer Name: Amphenol - Connectivity: J3 pinout: 1 VCC_LVDS_3V3, 2 GND, 3 LOGIC_DIN1_3V3 to U1 DIN1, 4 LOGIC_ROUT1_3V3 from U1 ROUT1, 5 EN tied high to VCC_LVDS_3V3, 6 ~EN tied low to GND. - Product Info Url: https://lcsc.com/product-detail/Male-Header_Amphenol_95293-401A06LF_95293-401A06LF-6P-pitch2-54mm_C178297.html - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302202_Amphenol-ICC-95293-401A06LF_C178297.pdf - Package or Case Code: HDR-SMD_6P-P2.54_95293-401A06LF **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### RTERM — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Tolerance: 1% - Resistance: 100Ω - Controlled Impedance Pair: LVDS_PAIR - Power Rating: 0.1W - Role Details: 100 Ω receiver-end termination across LVDS_P/LVDS_N - Role: Impedance Matching - Package: SMD_0603_1608Metric - Part Type: Resistor **Pins:** - P1 [pin 1] - P2 [pin 2] ### U1 — [DS90LV049TMTX](https://www.flux.ai/lcsc/ds90lv049tmtx~580g.md) - LCSC Part Number: C139655 - Role Details: 3.3 V LVTTL/LVCMOS to LVDS driver and LVDS to LVTTL/LVCMOS receiver demo IC - Manufacturer Name: TI(德州仪器) - Package or Case Code: TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL - Controlled Impedance: 100Ω - Product Info Url: https://lcsc.com/product-detail/LVDS_TI_DS90LV049TMTX_DS90LV049TMTX_C139655.html - Role: Logic-level Shifting - Part Type: LVDS ICs - Operating Voltage: 3.3V - Manufacturer Part Number: DS90LV049TMTX - JLCPCB Part Class: Extended Part - Datasheet URL: https://lcsc.com/product-detail/LVDS_TI_DS90LV049TMTX_DS90LV049TMTX_C139655.html **Pins:** - ~{EN} [pin 9] - DIN1 [pin 10] - DIN2 [pin 11] - DOUT1- [pin 8] - DOUT1+ [pin 7] - DOUT2- [pin 5] - DOUT2+ [pin 6] - EN [pin 16] - GND [pin 13] - RIN1- [pin 1] - RIN1+ [pin 2] - RIN2- [pin 4] - RIN2+ [pin 3] - ROUT1 [pin 15] - ROUT2 [pin 14] - VDD [pin 12] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/jbkkdoyle1/lvds-differential-pcb~t5](https://www.flux.ai/jbkkdoyle1/lvds-differential-pcb~t5).* --- *Generated from [https://www.flux.ai/jbkkdoyle1/lvds-differential-pcb~t5](https://www.flux.ai/jbkkdoyle1/lvds-differential-pcb~t5)*