# Vescent-to-Crystek VCO Interface ## Description Two-layer analog/RF interface board scaling a Vescent D2-125 servo output to drive the VTUNE input of a Crystek CVCO55CL-0060-0110, with clamps, test access, and controlled-impedance RF output. ## Project Details - **Owner:** niketh-keshavan - **Created:** 7/24/2026 - **Last Updated:** 7/24/2026 - **Visibility:** Public ## Key Components ### D1 — [BAT54H,115](https://www.flux.ai/jecstronic/bat54hc115~nbk.md) - Part Type: Diode - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://assets.nexperia.com/documents/data-sheet/BAT54H.pdf - Manufacturer Name: Nexperia USA Inc. - Manufacturer Part Number: BAT54H,115 **Pins:** - A [pin 2] - K [pin 1] ### D2 — [BAT54H,115](https://www.flux.ai/jecstronic/bat54hc115~nbk.md) - Datasheet URL: https://assets.nexperia.com/documents/data-sheet/BAT54H.pdf - Part Type: Diode - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: BAT54H,115 - Manufacturer Name: Nexperia USA Inc. **Pins:** - A [pin 2] - K [pin 1] ### D3 — [BZX84C10Q-7-F](https://www.flux.ai/lcsc/bzx84c10q-7-f~1lz.md) - Manufacturer Name: DIODES(美台) - Manufacturer Part Number: BZX84C10Q-7-F - Product Info Url: https://lcsc.com/product-detail/presales_Diodes-Incorporated-BZX84C10Q-7-F_C526496.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Diodes-Incorporated-BZX84C10Q-7-F_C526496.pdf - LCSC Part Number: C526496 - Package or Case Code: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR - Part Type: Zener Diodes **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J1 — [KH-BNC50-3511](https://www.flux.ai/jecstronic/kh-bnc50-3511~n6e.md) - Manufacturer Name: Shenzhen Kinghelm Elec - Datasheet URL: https://datasheet.lcsc.com/lcsc/2211231430_Shenzhen-Kinghelm-Elec-KH-BNC50-3511_C2837587.pdf - Part Type: Connector - Manufacturer Part Number: KH-BNC50-3511 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - OUT [pin 1] ### J2 — [142-0701-801](https://www.flux.ai/adrian95/142-0701-801~8ox.md) - Manufacturer Name: Cinch Connectivity Solutions - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Connector Type: RF / Coaxial Connectors - Datasheet URL: http://www.farnell.com/datasheets/2048966.pdf - Package or Case Code: 142-0701-851 - Manufacturer Part Number: 142-0701-801 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J3 — [0436500329](https://www.flux.ai/adrian95/0436500329~pu3.md) - Package or Case Code: 43650-03YY_272829 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Datasheet URL: https://tools.molex.com/pdm_docs/ps/PS-43650.pdf - Manufacturer Part Number: 0436500329 - Manufacturer Name: Molex **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### TP1 — [5019](https://www.flux.ai/adrian95/5019~fxh.md) - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Manufacturer Part Number: 5019 - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: 5019 - Part Type: Test Point - Manufacturer Name: Keystone Electronics **Pins:** - 1 [pin 1] ### U1 — [OPA197ID](https://www.flux.ai/lcsc/opa197id~p1e7.md) - Manufacturer Name: TI(德州仪器) - Role: Amplification - Package or Case Code: SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL - Datasheet URL: https://www.ti.com/lit/ds/symlink/opa197.pdf - JLCPCB Part Class: Extended Part - Part Type: Precision OpAmps - Role Details: Inverting scaling amplifier on +12V single supply - Manufacturer Part Number: OPA197ID - LCSC Part Number: C1347124 **Pins:** - -IN [pin 2] - +IN [pin 3] - NC [pin 1] - NC [pin 5] - NC [pin 8] - OUT [pin 6] - V- [pin 4] - V+ [pin 7] ### Y1 — CVCO55CL-0060-0110 - Manufacturer Name: Crystek Corporation - Frequency: 60-110MHz - Part Type: Crystals and Oscillators - Mount: Surface Mount - Package or Case Code: 16-QFN - Role Details: Exact Crystek 60-110MHz VCO; datasheet land pattern - Datasheet URL: https://www.mouser.com/datasheet/2/94/CVCO55CL-0060-0110-6908.pdf - Manufacturer Part Number: CVCO55CL-0060-0110 - Role: Signal Generation **Pins:** - GND [pin 9] - GND [pin 6] - GND [pin 4] - GND [pin 1] - GND [pin 11] - GND [pin 7] - GND [pin 8] - GND [pin 3] - GND [pin 16] - GND [pin 15] - GND [pin 13] - GND [pin 12] - GND [pin 5] - RF_OUT [pin 10] - VCC [pin 14] - VTUNE [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/niketh-keshavan/vescent-to-crystek-vco-interface~7z](https://www.flux.ai/niketh-keshavan/vescent-to-crystek-vco-interface~7z).* --- *Generated from [https://www.flux.ai/niketh-keshavan/vescent-to-crystek-vco-interface~7z](https://www.flux.ai/niketh-keshavan/vescent-to-crystek-vco-interface~7z)*