# STM32H7 PZT EMI Impedance Meter ## Description STM32H743VIT6 기반 PZT EMI 임피던스 측정 회로 ## Project Details - **Owner:** wellywen - **Created:** 5/12/2026 - **Last Updated:** 5/27/2026 - **Visibility:** Public ## Key Components ### D1 — [SS34](https://www.flux.ai/lcsc/ss34~6q67.md) - Manufacturer Name: UMW(友台半导体) - Diode Type: Schottky - Manufacturer Part Number: SS34 - Reverse Voltage: 40V - LCSC Part Number: C2758511 - JLCPCB Part Class: Extended Part - Forward Voltage: 0.3V to 0.45V - Current Rating: 3A - Datasheet URL: https://www.lcsc.com/datasheet/C2758511.pdf - Role: Reverse Polarity Protection - Package or Case Code: SMB_L4.3-W3.6-LS5.4-RD - Role Details: Series Schottky reverse-polarity diode after F1; anode to +12V_FUSED, cathode to protected +12V rail. - Part Type: Schottky Barrier Diodes (SBD) **Pins:** - A [pin 2] - K [pin 1] ### D2 — [SMBJ18A-13-F](https://www.flux.ai/lcsc/smbj18a-13-f~uiys.md) - Role: TVS Protection - Manufacturer Name: DIODES(美台) - Product Info Url: https://lcsc.com/product-detail/TVS_DIODES_SMBJ18A-13-F_SMBJ18A-13-F_C135055.html - Package or Case Code: SMB_L4.6-W3.6-LS5.3-RD - LCSC Part Number: C135055 - Part Type: TVS - Manufacturer Part Number: SMBJ18A-13-F - Breakdown Voltage: 18V - JLCPCB Part Class: Extended Part - Role Details: +12V protected rail transient clamp to GND - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Diodes-Incorporated-SMBJ18A-13-F_C135055.pdf **Pins:** - A [pin 2] - K [pin 1] ### D3 — [B340A](https://www.flux.ai/lcsc/b340a~7uya.md) - Diode Type: Schottky Diode - Manufacturer Name: FUXINSEMI(富芯森美) - Part Type: Schottky Barrier Diodes (SBD) - LCSC Part Number: C3018525 - Forward Voltage: 0.45V to 0.55V at 3AV - Package or Case Code: SMA_L4.3-W2.6-LS5.0-RD - Role Details: TPS5430 external Schottky catch diode; cathode to PH switching node, anode to GND per datasheet. - Max Reverse Voltage: 40V - Manufacturer Part Number: B340A - Role: Flyback / Freewheeling - JLCPCB Part Class: Extended Part **Pins:** - A [pin 2] - K [pin 1] ### F1 — [SMD200F/24-2920-2](https://www.flux.ai/adrian95/smd200f24-2920-2~e0s.md) - Manufacturer Name: Littelfuse Inc. - Role Details: Series resettable PTC fuse from J2 +12V_RAW input to +12V_FUSED before D1 SS34; selected for 12V input maximum current 2A. - Part Type: Fuse - Role: Input Protection - Max Current: 4A - Current Rating: 2A - Manufacturer Part Number: SMD200F/24-2920-2 - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.littelfuse.com/~/media/electronics/product_specifications/resettable_ptcs/littelfuse_ptc_smd200f_24_2920_2_product_specification.pdf.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] ### FB2 — [Generic Inductor](https://www.flux.ai/jharwinbarrozo/generic-inductor~wlv.md) - Inductance: 600Ω@100MHzH - Role Details: Ferrite bead isolating VDDA from 3V3 - Current Rating: 0.5A - Package: SMD_0603_1608Metric - Part Type: Inductor - Role: Supply Isolation - Package or Case Code: SMD_0603 **Pins:** - P1 [pin 1] - P2 [pin 2] ### J1 — [USB-C 2.0 Receptacle](https://www.flux.ai/vasy_skral/usb-c-2p0-receptacle~1xw.md) - Manufacturer Name: GCT - Purchase Url: https://www.digikey.com/en/products/detail/gct/USB4105-GF-A/11198441 - Role: Connector - Role Details: USB-C receptacle for USB HS PHY D+/D- and VBUS - Datasheet URL: https://gct.co/files/drawings/usb4105.pdf - Manufacturer Part Number: USB4105-GF-A - Symbol Style: parametric-v1 - Part Type: USB C **Pins:** - CC1 [pin 6] - CC2 [pin 12] - D- [pin 7] - D- [pin 9] - D+ [pin 10] - D+ [pin 8] - GND [pin 1] - GND [pin 16] - GND [pin 15] - GND [pin 2] - SBU1 [pin 11] - SBU2 [pin 5] - VBUS [pin 3] - VBUS [pin 14] - VBUS [pin 4] - VBUS [pin 13] ### J2 — [282837-2](https://www.flux.ai/vasy_skral/282837-2~69k.md) - Part Type: Connector - Manufacturer Part Number: 282837-2 - Role: Connector - Symbol Style: parametric-v1 - Role Details: +12V external supply input for system and OPA564 positive power - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Manufacturer Name: TE Connectivity AMP Connectors **Pins:** - 1 [pin 1] - 2 [pin 2] ### J3 — [282837-2](https://www.flux.ai/vasy_skral/282837-2~69k.md) - Symbol Style: parametric-v1 - Manufacturer Part Number: 282837-2 - Part Type: Connector - Role: Connector - Manufacturer Name: TE Connectivity AMP Connectors - Role Details: -12V external supply input for OPA564 negative power - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English **Pins:** - 1 [pin 1] - 2 [pin 2] ### J4 — [282837-2](https://www.flux.ai/vasy_skral/282837-2~69k.md) - Symbol Style: parametric-v1 - Manufacturer Part Number: 282837-2 - Part Type: Connector - Role: Connector - Manufacturer Name: TE Connectivity AMP Connectors - Role Details: PZT excitation and return interface - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English **Pins:** - 1 [pin 1] - 2 [pin 2] ### J5 — [M50-3500542](https://www.flux.ai/adrian95/m50-3500542~4sb.md) - Datasheet URL: https://content.harwin.com/m/d0f746354cedd7a4/original/PD002-Product-Datasheet-ARCHER-M50-and-M52-ranges-BBi.pdf - Role: Debug Connector - Manufacturer Name: Harwin - Part Type: Connectors - Manufacturer Part Number: M50-3500542 - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: ARM Cortex SWD interface for STM32H743 - Mount: Through Hole **Pins:** - 1 [pin 1] - 10 [pin 10] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### U1 — [STM32H743VIT6](https://www.flux.ai/lcsc/stm32h743vit6~z1ju.md) - Role Details: STM32H743VIT6 main MCU for PZT EMI measurement - Package or Case Code: LQFP-100_L14.0-W14.0-P0.50-LS16.0-BL - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_STMicroelectronics-STM32H743VIT6_C114409.pdf - Part Type: ST Microelectronics - Voltage Supply: 1.71 ~ 3.6V - Manufacturer Part Number: STM32H743VIT6 - JLCPCB Part Class: Extended Part - Manufacturer Name: STMicroelectronics - Role: Controller - Product Info Url: https://lcsc.com/product-detail/ST-Microelectronics_STMicroelectronics-STM32H743VIT6_C114409.html - LCSC Part Number: C114409 - Operating Temperature: -40°C ~ 85°C (TA) - Frequency: 480MHz **Pins:** - BOOT0 [pin 94] - NRST [pin 14] - PA0 [pin 22] - PA1 [pin 23] - PA10 [pin 69] - PA11 [pin 70] - PA12 [pin 71] - PA13 [pin 72] - PA14 [pin 76] - PA15 [pin 77] - PA2 [pin 24] - PA3 [pin 25] - PA4 [pin 28] - PA5 [pin 29] - PA6 [pin 30] - PA7 [pin 31] - PA8 [pin 67] - PA9 [pin 68] - PB0 [pin 34] - PB1 [pin 35] - PB10 [pin 46] - PB11 [pin 47] - PB12 [pin 51] - PB13 [pin 52] - PB14 [pin 53] - PB15 [pin 54] - PB2 [pin 36] - PB3 [pin 89] - PB4 [pin 90] - PB5 [pin 91] - PB6 [pin 92] - PB7 [pin 93] - PB8 [pin 95] - PB9 [pin 96] - PC0 [pin 15] - PC1 [pin 16] - PC10 [pin 78] - PC11 [pin 79] - PC12 [pin 80] - PC13 [pin 7] - PC14-OSC32_IN [pin 8] - PC15-OSC32_OUT [pin 9] - PC2_C [pin 17] - PC3_C [pin 18] - PC4 [pin 32] - PC5 [pin 33] - PC6 [pin 63] - PC7 [pin 64] - PC8 [pin 65] - PC9 [pin 66] - PD0 [pin 81] - PD1 [pin 82] - PD10 [pin 57] - PD11 [pin 58] - PD12 [pin 59] - PD13 [pin 60] - PD14 [pin 61] - PD15 [pin 62] - PD2 [pin 83] - PD3 [pin 84] - PD4 [pin 85] - PD5 [pin 86] - PD6 [pin 87] - PD7 [pin 88] - PD8 [pin 55] - PD9 [pin 56] - PE0 [pin 97] - PE1 [pin 98] - PE10 [pin 40] - PE11 [pin 41] - PE12 [pin 42] - PE13 [pin 43] - PE14 [pin 44] - PE15 [pin 45] - PE2 [pin 1] - PE3 [pin 2] - PE4 [pin 3] - PE5 [pin 4] - PE6 [pin 5] - PE7 [pin 37] - PE8 [pin 38] - PE9 [pin 39] - PH0-OSC_IN [pin 12] - PH1-OSC_OUT [pin 13] - VBAT [pin 6] - VCAP [pin 48] - VCAP [pin 73] - VDD [pin 50] - VDD [pin 27] - VDD [pin 100] - VDD [pin 11] - VDD [pin 75] - VDDA [pin 21] - VREF+ [pin 20] - VSS [pin 10] - VSS [pin 49] - VSS [pin 74] - VSS [pin 26] - VSS [pin 99] - VSSA [pin 19] ### U2 — [AD9833BRMZ-REEL](https://www.flux.ai/lcsc/ad9833brmz-reel~g1m0.md) - Part Type: Direct Digital Synthesis (DDS) - Role: Signal Source - LCSC Part Number: C653879 - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Pre-ordered-Products_Analog-Devices_AD9833BRMZ-REEL_Analog-Devices-ADI-LINEAR-AD9833BRMZ-REEL_C653879.html - Manufacturer Part Number: AD9833BRMZ-REEL - Role Details: AD9833 DDS waveform generator controlled by STM32 SPI - Manufacturer Name: Analog Devices - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Analog-Devices-AD9833BRMZ-REEL_C653879.pdf - Package or Case Code: MSOP-10_L3.0-W3.0-P0.50-LS5.0-BL **Pins:** - AGND [pin 9] - CAP/2.5V [pin 3] - COMP [pin 1] - DGND [pin 4] - FSYNC [pin 8] - MCLK [pin 5] - SCLK [pin 7] - SDATA [pin 6] - VDD [pin 2] - VOUT [pin 10] ### U3 — [OPA564AIDWPR](https://www.flux.ai/lcsc/opa564aidwpr~499p.md) - Manufacturer Name: Texas Instruments - Product Info Url: https://lcsc.com/product-detail/Operational-Amplifiers_TI_OPA564AIDWPR_OPA564AIDWPR_C188648.html - Part Type: Operational Amplifier - Manufacturer Part Number: OPA564AIDWPR - JLCPCB Part Class: Extended Part - LCSC Part Number: C188648 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Texas-Instruments-OPA564AIDWPR_C188648.pdf - Role: Power Amplifier - Package or Case Code: HSOP-20_L12.9-W7.5-P1.27-BL-EP-A - Role Details: OPA564 PZT driver powered from ±12V rails **Pins:** - -IN [pin 6] - +IN [pin 5] - E/~{S} [pin 4] - EP [pin 21] - IFLAG [pin 8] - ISET [pin 9] - TFLAG [pin 3] - TSENSE [pin 12] - V- [pin 11] - V- [pin 1] - V- [pin 10] - V- [pin 20] - V-PWR [pin 13] - V-PWR [pin 14] - V+ [pin 2] - V+PWR [pin 19] - V+PWR [pin 18] - V+PWR [pin 17] - VDIG [pin 7] - VOUT [pin 16] - VOUT [pin 15] ### U4 — [AD7380BCPZ-RL7](https://www.flux.ai/lcsc/ad7380bcpz-rl7~mbmk.md) - Role: ADC - Manufacturer Part Number: AD7380BCPZ-RL7 - Manufacturer Name: Analog Devices - LCSC Part Number: C578426 - Role Details: AD7380 dual ADC for impedance voltage/current capture - JLCPCB Part Class: Extended Part - Package or Case Code: LFCSP-16_L3.0-W3.0-P0.50-TL-EP1.1 **Pins:** - ~{CS} [pin 12] - AINA– [pin 7] - AINA+ [pin 8] - AINB– [pin 5] - AINB+ [pin 6] - EP [pin 17] - GND [pin 1] - GND [pin 10] - REFCAP [pin 9] - REFIO [pin 11] - REGCAP [pin 3] - SCLK [pin 16] - SDI [pin 15] - SDOA [pin 13] - SDOB/~{ALERT} [pin 14] - VCC [pin 4] - VLOGIC [pin 2] ### U5 — [USB3320C-EZK-TR](https://www.flux.ai/lcsc/usb3320c-ezk-tr~48r5.md) - Manufacturer Part Number: USB3320C-EZK-TR - LCSC Part Number: C132156 - Package or Case Code: QFN-32_L5.0-W5.0-P0.50-BL-EP3.4 - Role: USB PHY - Product Info Url: https://lcsc.com/product-detail/USB_MICROCHIP_USB3320C-EZK-TR_USB3320C-EZK-TR_C132156.html - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1811082216_Microchip-Tech-USB3320C-EZK-TR_C132156.pdf - Role Details: USB3320 ULPI PHY for 480Mbps USB HS - Part Type: USB ICs - Manufacturer Name: Microchip **Pins:** - CLKOUT [pin 1] - CPEN [pin 17] - DATA0 [pin 3] - DATA1 [pin 4] - DATA2 [pin 5] - DATA3 [pin 6] - DATA4 [pin 7] - DATA5 [pin 9] - DATA6 [pin 10] - DATA7 [pin 13] - DIR [pin 31] - DM [pin 19] - DP [pin 18] - EXP [pin 33] - ID [pin 23] - N/C [pin 12] - NXT [pin 2] - RBIAS [pin 24] - REFCLK [pin 26] - REFSEL0 [pin 8] - REFSEL1 [pin 11] - REFSEL2 [pin 14] - RESETB [pin 27] - SPK_L [pin 15] - SPK_R [pin 16] - STP [pin 29] - VBAT [pin 21] - VBUS [pin 22] - VDD18 [pin 28] - VDD18 [pin 30] - VDD33 [pin 20] - VDDIO [pin 32] - XO [pin 25] ### U6 — [TPS5430DDA](https://www.flux.ai/kicad-part-library/tps5430dda~3i5.md) - Role: Buck Regulator - Manufacturer Part Number: TPS5430DDA - Role Details: TPS5430 generates 5V system rail from 12V input - Package or Case Code: TI_SO-PowerPAD-8_ThermalVias - Manufacturer Name: Texas Instruments - Datasheet URL: http://www.ti.com/lit/ds/symlink/tps5430.pdf **Pins:** - BOOT [pin 1] - EN [pin 5] - GND [pin 6] - GNDPAD [pin 9] - NC [pin 3] - NC [pin 2] - PH [pin 8] - VIN [pin 7] - VSENSE [pin 4] ### U7 — [TPS60403DBVRG4](https://www.flux.ai/lcsc/tps60403dbvrg4~pwn.md) - Role Details: TPS60403 inverts local analog bias rail; external -12V input is used for OPA564 power - Package or Case Code: SOT-23-5_L2.9-W1.6-P0.95-LS2.8-BR - JLCPCB Part Class: Extended Part - Manufacturer Part Number: TPS60403DBVRG4 - Part Type: DC-DC Converters - LCSC Part Number: C2070968 - Manufacturer Name: Texas Instruments - Role: Charge Pump **Pins:** - CFLY– [pin 3] - CFLY+ [pin 5] - GND [pin 4] - IN [pin 2] - OUT [pin 1] ### U8 — [TLV1117LV33DCYR](https://www.flux.ai/thea-flux-parts/tlv1117lv33dcyr~7t.md) - Max Current: 1A - Output Voltage: 3.3V - Input Voltage: 2V to 5.5V - Manufacturer Part Number: TLV1117LV33DCYR - Datasheet URL: https://www.ti.com/lit/ds/symlink/tlv1117lv.pdf - License: https://www.kicad.org/libraries/license/ - Package or Case Code: SOT-223-4 - Part Type: LDO - Role Details: Generates +3V3 from +5V using TLV1117LV33DCYR; TI datasheet requires 1uF ceramic output capacitor and recommends 0.1uF to 1uF low-ESR input capacitor near IN/GND. - Role: +3V3 LDO Regulator - Manufacturer Name: Texas Instruments **Pins:** - GND [pin 1] - VIN [pin 3] - VOUT [pin 2] - VOUT [pin 4] ### Y1 — [NX3225GA-25MHZ-STD-CRG-2](https://www.flux.ai/lcsc/nx3225ga-25mhz-std-crg-2~jt15.md) - Role: Timing - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_NDK-NX3225GA-25MHZ-STD-CRG-2_C438901.pdf - Package or Case Code: OSC-SMD_4P-L3.2-W2.5-BL - Manufacturer Name: NDK - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/SMD-Crystal-Resonators_NDK-NX3225GA-STD-CRG-2-25MHZ_C438901.html - LCSC Part Number: C438901 - Part Type: Crystals - Role Details: 25MHz HSE crystal for STM32H743 PLL - Manufacturer Part Number: NX3225GA-25MHZ-STD-CRG-2 **Pins:** - 1 [pin 1] - 3 [pin 3] - GND [pin 4] - GND [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/wellywen/stm32h7-pzt-emi-impedance-meter~g1](https://www.flux.ai/wellywen/stm32h7-pzt-emi-impedance-meter~g1).* --- *Generated from [https://www.flux.ai/wellywen/stm32h7-pzt-emi-impedance-meter~g1](https://www.flux.ai/wellywen/stm32h7-pzt-emi-impedance-meter~g1)*