# Tricky Blush Replicator ## Description One-Channel 1–50 kHz Signal Generator with AM/FM/PM Modulation and 1–20 Vpp Sine/Square Outputs ## Project Details - **Owner:** cruzjose - **Created:** 12/2/2025 - **Last Updated:** 12/2/2025 - **Visibility:** Public - **System Architecture:** ```mermaid graph LR PWR[Power Supply] --> MCU[MCU / DAC] PWR --> CMP[Comparator] PWR --> MOD[Modulation Circuits] PWR --> OUT[Output Stage] MCU --> CMP MCU --> MOD MCU --> IO[ I/O Connectors] IO --> MCU MOD --> OUT CMP --> OUT ``` ## Key Components ### D1 — [ESDA25SC6](https://www.flux.ai/adrian95/esda25sc6.md) - Part Type: Diode - Manufacturer Name: STMicroelectronics - License: https://creativecommons.org/licenses/by/4.0/ - Role: Clamping - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/7f/2e/1d/82/74/9c/4b/a1/CD00002055.pdf/files/CD00002055.pdf/jcr:content/translations/en.CD00002055.pdf - Manufacturer Part Number: ESDA25SC6 - Role Details: Transient suppression diode for 24 V input **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### F1 — [JFC0603-1100FS](https://www.flux.ai/lcsc/jfc0603-1100fs.md) - Package or Case Code: F0603 - JLCPCB Part Class: Extended Part - Part Type: Fuses - Manufacturer Name: JDTfuse(集电通) - Product Info Url: https://lcsc.com/product-detail/Surface-Mount-Fuses_1A-32V_C136329.html - Manufacturer Part Number: JFC0603-1100FS - Role: Protection - Role Details: Inline fuse for 24 V input rated 1 A, 32 V - LCSC Part Number: C136329 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2305151205_Shenzhen-JDT-Fuse-JFC0603-1100FS_C136329.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] ### J1 — [PJ-051AH](https://www.flux.ai/vasy_skral/pj-051ah.md) - Manufacturer Name: CUI Devices - Datasheet URL: https://www.cuidevices.com/product/resource/digikeypdf/pj-051ah.pdf - Role Details: 24 V DC input from external adapter - Manufacturer Part Number: PJ-051AH - Part Type: Connector - Role: Power Connector **Pins:** - Center Pin [pin 1] - MountPin [pin MP1] - MountPin [pin MP2] - Switch [pin 3] - Terminal [pin 2] ### J2 — [KH-BNC50-3511](https://www.flux.ai/jecstronic/kh-bnc50-3511.md) - Role Details: 50 Ω terminated signal output - Manufacturer Name: Shenzhen Kinghelm Elec - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://datasheet.lcsc.com/lcsc/2211231430_Shenzhen-Kinghelm-Elec-KH-BNC50-3511_C2837587.pdf - Part Type: Connector - Role: Output Connector - Manufacturer Part Number: KH-BNC50-3511 **Pins:** - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - OUT [pin 1] ### J3 — [PJ-301BM](https://www.flux.ai/dominic-dev/pj-301bm.md) - Role: Modulation Input - Purchase Url: https://www.aliexpress.com/item/1005001958349207.html - Connector Type: Audio / Video Connectors - Role Details: AM modulation input - Part Type: Connector - Datasheet URL: http://www.taydaelectronics.com/datasheets/files/A-2566.pdf **Pins:** - S1 - S2 - T - TN ### J4 — [PJ-301BM](https://www.flux.ai/dominic-dev/pj-301bm.md) - Purchase Url: https://www.aliexpress.com/item/1005001958349207.html - Connector Type: Audio / Video Connectors - Role: Modulation Input - Datasheet URL: http://www.taydaelectronics.com/datasheets/files/A-2566.pdf - Role Details: FM modulation input - Part Type: Connector **Pins:** - S1 - S2 - T - TN ### J5 — [PJ-301BM](https://www.flux.ai/dominic-dev/pj-301bm.md) - Connector Type: Audio / Video Connectors - Role: Modulation Input - Purchase Url: https://www.aliexpress.com/item/1005001958349207.html - Datasheet URL: http://www.taydaelectronics.com/datasheets/files/A-2566.pdf - Role Details: PM modulation input - Part Type: Connector **Pins:** - S1 - S2 - T - TN ### U1 — [STM32F303C8T6](https://www.flux.ai/jecstronic/stm32f303c8t6.md) - Role Details: DDS/NCO-capable MCU - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/group3/38/c6/ca/d1/f7/d5/4e/30/DM00092070/files/DM00092070.pdf/jcr:content/translations/en.DM00092070.pdf - Manufacturer Part Number: STM32F303C8T6 - Manufacturer Name: STMicroelectronics - Part Type: Microcontroller - Role: Signal Generation - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - BOOT0 [pin 44] - NRST [pin 7] - PA0 [pin 10] - PA1 [pin 11] - PA10 [pin 31] - PA11 [pin 32] - PA12 [pin 33] - PA13 [pin 34] - PA14 [pin 37] - PA15 [pin 38] - PA2 [pin 12] - PA3 [pin 13] - PA4 [pin 14] - PA5 [pin 15] - PA6 [pin 16] - PA7 [pin 17] - PA8 [pin 29] - PA9 [pin 30] - PB0 [pin 18] - PB1 [pin 19] - PB10 [pin 21] - PB11 [pin 22] - PB12 [pin 25] - PB13 [pin 26] - PB14 [pin 27] - PB15 [pin 28] - PB2 [pin 20] - PB3 [pin 39] - PB4 [pin 40] - PB5 [pin 41] - PB6 [pin 42] - PB7 [pin 43] - PB8 [pin 45] - PB9 [pin 46] - PC13 [pin 2] - PC14/OSC32_IN [pin 3] - PC15/OSC32_OUT [pin 4] - PF0/OSC_IN [pin 5] - PF1/OSC_OUT [pin 6] - VBAT [pin 1] - VDD_1 [pin 24] - VDD_2 [pin 36] - VDD_3 [pin 48] - VDDA [pin 9] - VSS_1 [pin 23] - VSS_2 [pin 35] - VSS_3 [pin 47] - VSSA/VREF- [pin 8] ### U2 — [MCP4822-E/MS](https://www.flux.ai/vasyl/mcp4822-ems.md) - Datasheet URL: http://www.microchip.com/mymicrochip/filehandler.aspx?ddocname=en547855 - Manufacturer Name: Microchip Technology - Role Details: 12-bit DAC for sine wave output - Part Type: Integrated Circuit - Role: Signal Generation - Manufacturer Part Number: MCP4822-E/MS **Pins:** - ~CS [pin 2] - ~LDAC [pin 5] - SCK [pin 3] - SDI [pin 4] - VA [pin 8] - VB [pin 6] - Vdd [pin 1] - Vss [pin 7] ### U3 — [LM2596S-ADJ/NOPB](https://www.flux.ai/adrian95/lm2596s-adjnopb.md) - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm2596.pdf - Role: Power Conversion - Manufacturer Part Number: LM2596S-ADJ/NOPB - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Role Details: Switching regulator for local rail generation (adjustable) **Pins:** - ~ON~/OFF [pin 5] - FB [pin 4] - GND [pin 6] - GND [pin 3] - OUT [pin 2] - VIN [pin 1] ### U4 — [LM7805T](https://www.flux.ai/lcsc/lm7805t.md) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2004071814_HGC-Huaguan-Semicon-LM7805T_C507145.pdf - Role: Power Conversion - JLCPCB Part Class: Extended Part - Manufacturer Part Number: LM7805T - LCSC Part Number: C507145 - Part Type: Linear Voltage Regulators (LDO) - Product Info Url: https://lcsc.com/product-detail/Linear-Voltage-Regulators_HGC-Huaguan-Semicon-LM7805T_C507145.html - Package or Case Code: TO-220-3_L10.0-W4.5-P2.54-L - Role Details: 5V LDO regulator for digital rail - Manufacturer Name: HGC(华冠) **Pins:** - GND [pin 2] - OUT [pin 3] - VIN [pin 1] ### U5 — [LM7815T](https://www.flux.ai/lcsc/lm7815t.md) - JLCPCB Part Class: Extended Part - Package or Case Code: TO-220-3_L10.0-W4.5-P2.54-L - Product Info Url: https://lcsc.com/product-detail/Linear-Voltage-Regulators_HGSEMI-LM7815T_C507139.html - LCSC Part Number: C507139 - Manufacturer Name: HGSEMI(华冠) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410121356_HGSEMI-LM7815T_C507139.pdf - Role Details: 15V LDO regulator for positive analog rail - Manufacturer Part Number: LM7815T - Part Type: Linear Voltage Regulators (LDO) - Role: Power Conversion **Pins:** - GND [pin 2] - OUT [pin 3] - VCC [pin 1] ### U6 — [LM7915CT](https://www.flux.ai/adrian95/lm7915ct.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Fairchild%20PDFs/LM79xx_Rev2011.pdf - Manufacturer Name: Texas Instruments - Role Details: -15V LDO regulator for negative analog rail - Role: Power Conversion - Manufacturer Part Number: LM7915CT **Pins:** - GND [pin 1] - VI [pin 2] - VO [pin 3] ### U7 — [LM311DR](https://www.flux.ai/adrian95/lm311dr.md) - Role: Signal Generation - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Manufacturer Part Number: LM311DR - Role Details: Comparator for generating square wave from sine DAC output - Manufacturer Name: Texas Instruments Inc. - Datasheet URL: https://www.snapeda.com/parts/LM311DR/Texas%20Instruments/datasheet/ **Pins:** - BAL [pin 5] - BAL/STROBE [pin 6] - GND1 [pin 1] - IN2 [pin 2] - IN3 [pin 3] - OUT [pin 7] - V- [pin 4] - V+ [pin 8] ### U8 — [OPA548FKTWT](https://www.flux.ai/jecstronic/opa548fktwt.md) - Manufacturer Part Number: OPA548FKTWT - Role Details: Output power amplifier stage for 1–20 Vpp into 50 Ω load - Part Type: Operational Amplifier (OP-AMP) - Manufacturer Name: Texas Instruments - Datasheet URL: https://www.ti.com/lit/ds/symlink/opa548.pdf - Role: Amplification - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 8 [pin 8] - E/S [pin 7] - ILIM [pin 3] - V- [pin 4] - V+ [pin 5] - VIN- [pin 2] - VIN+ [pin 1] - Vo [pin 6] ### U9 — [CD4053BE](https://www.flux.ai/jecstronic/cd4053be.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Analog Switch - Role: Switching - Role Details: Analog switch to select between sine and square waveform paths - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fcd4051b - Manufacturer Name: Texas Instruments - Manufacturer Part Number: CD4053BE **Pins:** - A [pin 14] - A0 [pin 12] - A1 [pin 13] - B [pin 15] - B0 [pin 2] - B1 [pin 1] - C [pin 4] - C0 [pin 5] - C1 [pin 3] - INH [pin 6] - S1 [pin 11] - S2 [pin 10] - S3 [pin 9] - VDD [pin 16] - VEE [pin 7] - VSS [pin 8] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/cruzjose/tricky-blush-replicator](https://www.flux.ai/cruzjose/tricky-blush-replicator).* --- *Generated from [https://www.flux.ai/cruzjose/tricky-blush-replicator](https://www.flux.ai/cruzjose/tricky-blush-replicator)*