PDH-module
About the PDH-module
PDH-module is an open source PCB design by TU-Darmstadt-APQ, published on GitHub under the CERN-OHL-1.2 license. It is a 2-layer board measuring 160 × 100 mm, with 82 components from 36 distinct parts.
Other key parts include the LT3094EMSE#PBF, LT3045EMSE#PBF, ADA4898-2YRDZ, L7812CV and L7908CV. By type, the board carries 33 capacitors, 25 resistors, 11 ICs, 9 connectors and 3 diodes.
From the project
Produces a PDH error-signal using MiniCircuits SYPD-1+ phase detector and LT1568 4th order low-pass filter. To be used with a AD9959 DDS board.
Digital Pound-Drever-Hall (PDH) module =================== This repository contains the KiCad design files of a module for PDH error-signal generation. The PCB is used with a DDS board providing signals for modulation and phase-sensitive demodulation (Gra&Afch AD9959).
- Modulation output for resonant EOM: 15 dBm / 100 MHz
- Variable gain photodetector amplifier: 0 dB to 20 dB / 100 MHz
Main components on the PDH-module
PDH-module bill of materials (BOM)
82 components, 36 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LT3094EMSE#PBF LT3094xMSE | MSOP-12-1EP_3x4mm_P0.65mm_EP1.65x2.85mm | U1 |
| 1 | LT3045EMSE#PBF LT3045xMSE | MSOP-12-1EP_3x4mm_P0.65mm_EP1.65x2.85mm | U2 |
| 1 | ADA4898-2YRDZ ADA4898-2 | SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm | U7 |
| 1 | L7812CV LM7812_TO220 | TO-220-3_Vertical | U10 |
| 1 | L7908CV LM7908_TO220 | TO-220-3_Horizontal_TabDown | U11 |
| 1 | L7808CV LM7808_TO220 | TO-220-3_Vertical | U12 |
| 3 | OPA695ID OPA695 | SOIC-8_3.9x4.9mm_P1.27mm | U13, U14, U17 |
| 1 | SYPD-1+ SYPD-1 | Mini-Circuits_TTT167_LandPatternPL-079_DNF | U15 |
| 1 | LT1568CGN#PBF LT1568 | SSOP-16_3.9x4.9mm_P0.635mm | U16 |
| 1 | 09031646921 C64AC | DIN41612_C_2x32_Male_Horizontal_THT | J1 |
| 1 | 22-23-2031 DDS_Supply | Molex_KK-254_AE-6410-03A_1x03_P2.54mm_Vertical | J2 |
| 1 | 132289 PD_In | SMA_Amphenol_132289_EdgeMount | J3 |
| 1 | 901-143-6RFX Ref_In_A | SMA_Amphenol_132203-12_Horizontal | J4 |
| 1 | 132289 Error_Out | SMA_Amphenol_132289_EdgeMount | J5 |
| 1 | 901-143-6RFX Mod_In | SMA_Amphenol_132203-12_Horizontal | J9 |
| 1 | 132289 RF_Out | SMA_Amphenol_132289_EdgeMount | J10 |
| 1 | +5V GND -5V | Molex_KK-254_AE-6410-03A_1x03_P2.54mm_Vertical | J11 |
| 1 | +15V GND -15V | FanPinHeader_1x03_P2.54mm_Vertical | J12 |
| 1 | M43P501KB40 500 | Potentiometer_Vishay_43_Horizontal | RV1 |
| 2 | SMBJ40CA-QH D_TVS | D_SMB | D3, D4 |
Show 16 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PMEG2010AET,215 PMEG2010 | SOT-23 | D6 |
| 7 | GRM1885C1H103JA01D 10n(C0G) | C_0603_1608Metric | C1, C16, C26, C44, C46, C50, C51 |
| 4 | GMK325BJ106MN-T 10u | C_1210_3225Metric | C2, C3, C10, C11 |
| 2 | C1206C104K3GEC7210 100n | C_1206_3216Metric | C5, C8 |
| 15 | C0603C104K5RECAUTO 100n | C_0603_1608Metric | C9, C27, C28, C29, C30, C34, C36, C38 +7 |
| 5 | ESK107M025AC3AA 100u | CP_Radial_D5.0mm_P2.00mm | C33, C35, C37, C39, C40 |
| 2 | RC0603FR-1049K9L 49.9k | R_0603_1608Metric | R1, R4 |
| 4 | RC0603FR-07200RL 200 | R_0603_1608Metric | R2, R20, R31, R31A1 |
| 7 | RR0816P-4990-D-68A 499 | R_0603_1608Metric | R6, R21, R22, R25, R27, R28, R32 |
| 4 | RT0603DRE07158RL 158 | R_0603_1608Metric | R11A1, R12A1, R21A1, R22A1 |
| 3 | RC1210FR-0749R9L 49.9 | R_1210_3225Metric | R16, R19, R29 |
| 1 | DNF(200) | R_0603_1608Metric | R18 |
| 1 | RC0603FR-0720RL 20 | R_0603_1608Metric | R24 |
| 1 | RT0603FRE074R7L 4.7 | R_0603_1608Metric | R30 |
| 1 | RT0603FRE0762RL 62 | R_0603_1608Metric | R32A1 |
| 1 | RC0603FR-07100RL 100 | R_0603_1608Metric | R33 |
PDH-module design files
The KiCad project lives in the TU-Darmstadt-APQ/PDH-module repository on GitHub; these links point at the commit this page was built from.
- LayoutKiCad/PDH_module.kicad_pcb
- SchematicKiCad/PDH_module.kicad_sch
- BOMfrontpanel/BOM.csv
PDH-module: common questions
How big is the PDH-module?
The PDH-module measures 160 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the PDH-module?
82 components, from 36 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the PDH-module design files?
From the TU-Darmstadt-APQ/PDH-module repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the PDH-module design in my own project?
Yes, under the terms of its CERN-OHL-1.2 license, which TU-Darmstadt-APQ chose for the repository.