# Separate Pink Replicator ## Description Fully passive dual-chain X-Band upconverter with two 5–7 GHz SMA RF inputs, a single external LO SMA passively split to two mixer chains, and dual on-board 8–10 GHz 50 Ω PCB outputs with PI-match networks, no DC-powered components, BOM <$300 #PassiveUpconverter #DualChain #XBand #NoDCPower #BOMUnder300 ## Project Details - **Owner:** fghjgfd - **Created:** 2/1/2026 - **Last Updated:** 2/1/2026 - **Visibility:** Public - **Operating Frequency Range Start:** 5GHz - **Controlled Impedance:** 50Ω - **feed_network_keepout:** {"CHAIN1_FEED":[[80,-50],[100,-50],[100,0],[80,0]],"CHAIN2_FEED":[[80,0],[100,0],[100,50],[80,50]]} - **System Architecture Diagram (Mermaid):** ```mermaid flowchart TD subgraph RF_Chain_1 [RF Upconversion Chain 1] RF1_IN["RF1_IN SMA\n5-7 GHz"] --> RF1_Prefilter["RF1 Pre-filter\n5-7 GHz BPF"] RF1_Prefilter --> Mixer1["Mixer 1 (Passive)"] Mixer1 --> RF1_Postfilter["RF1 Post-filter\n8-10 GHz BPF"] RF1_Postfilter --> RF1_Match["RF1 PI-match\n50 Ohm PCB Output"] end subgraph RF_Chain_2 [RF Upconversion Chain 2] RF2_IN["RF2_IN SMA\n5-7 GHz"] --> RF2_Prefilter["RF2 Pre-filter\n5-7 GHz BPF"] RF2_Prefilter --> Mixer2["Mixer 2 (Passive)"] Mixer2 --> RF2_Postfilter["RF2 Post-filter\n8-10 GHz BPF"] RF2_Postfilter --> RF2_Match["RF2 PI-match\n50 Ohm PCB Output"] end LO_SMA["LO_IN SMA\n~3 GHz"] --> Splitter["2-way LO Splitter (Passive)"] Splitter --> Mixer1 Splitter --> Mixer2 ``` - **Architecture Version:** dual-chain-passive-MIMO-with-external-LO - **Domain:** Telecommunications - **Target Output Power:** 32dBm - **System Notes:** No onboard PA present; board is a passive frequency shifter. Upstream system must supply sufficient drive to achieve ≥+32 dBm at the 8–10 GHz outputs. - **Role:** Signal Mixing / Detection - **Board Stackup:** Standard 4 Layer - **Bill of Materials Budget:** 300$ - **via_fence_zones:** {"LO_DISTRIBUTION": [[20, -30], [50, -30], [50, 10], [20, 10]], "MIXER_CHAIN1": [[0, -40], [30, -40], [30, 0], [0, 0]], "MIXER_CHAIN2": [[0, -10], [30, -10], [30, 30], [0, 30]], "PA_CHAIN1": [[30, -40], [70, -40], [70, 0], [30, 0]], "PA_CHAIN2": [[30, -10], [70, -10], [70, 30], [30, 30]]} - **License:** http://solderpad.org/licenses/SHL-2.1/ - **antenna_keepout_regions:** {"OUTPUT_CHAIN1": [[-10, -10], [10, -10], [10, 10], [-10, 10]], "OUTPUT_CHAIN2": [[-10, -10], [10, -10], [10, 10], [-10, 10]]} - **Role Details:** X-band passive upconverter: 5–7 GHz RF input mixed with external ~3 GHz LO to produce 8–10 GHz output using only passive components; no onboard PA, ≥+32 dBm output is provided solely by the upstream system. - **Part Type:** RF Transceiver - **Operating Frequency Range Stop:** 10GHz ## Key Components ### BPF1 — [BFCN-5200](https://www.flux.ai/vasy_skral/bfcn-5200.md) - Part Type: RF Filter - Datasheet URL: https://www.minicircuits.com/pdfs/BFCN-5200+.pdf - Manufacturer Name: Mini-Circuits - Role Details: Input bandpass filter for 5–7 GHz, rejects out-of-band signals at the upconverter input - Role: Filtering - Package or Case Code: 4-SMD - Manufacturer Part Number: BFCN-5200+ **Pins:** - GND [pin 4-2] - GND [pin 2-2] - GND [pin 4] - GND [pin 2-1] - GND [pin 2] - GND [pin 4-1] - IN [pin 1] - OUT [pin 3] ### BPF2 — [BFCN-5200](https://www.flux.ai/vasy_skral/bfcn-5200.md) - Role: Filtering - Datasheet URL: https://www.minicircuits.com/pdfs/BFCN-5200+.pdf - Part Type: RF Filter - Manufacturer Part Number: BFCN-5200+ - Role Details: Pre-filter for second RF upconversion chain, 5–7 GHz bandpass filter - Package or Case Code: 4-SMD - Manufacturer Name: Mini-Circuits **Pins:** - GND [pin 4-2] - GND [pin 2-2] - GND [pin 4] - GND [pin 2-1] - GND [pin 2] - GND [pin 4-1] - IN [pin 1] - OUT [pin 3] ### BPF3 — [BFCN-5200](https://www.flux.ai/vasy_skral/bfcn-5200.md) - Manufacturer Name: Mini-Circuits - Role: Filtering - Manufacturer Part Number: BFCN-5200+ - Package or Case Code: 4-SMD - Part Type: RF Filter - Role Details: Post-filter for second RF upconversion chain, 5–7 GHz bandpass filter - Datasheet URL: https://www.minicircuits.com/pdfs/BFCN-5200+.pdf **Pins:** - GND [pin 4-2] - GND [pin 2-2] - GND [pin 4] - GND [pin 2-1] - GND [pin 2] - GND [pin 4-1] - IN [pin 1] - OUT [pin 3] ### FL1 — [BFCN-5200](https://www.flux.ai/vasy_skral/bfcn-5200.md) - Manufacturer Name: Mini-Circuits - Role: Filtering - Package or Case Code: 4-SMD - Manufacturer Part Number: BFCN-5200+ - Datasheet URL: https://www.minicircuits.com/pdfs/BFCN-5200+.pdf - Role Details: Pre-filter for second RF upconversion chain (5–7 GHz bandpass filter) - Part Type: RF Filter **Pins:** - GND [pin 4-2] - GND [pin 2-2] - GND [pin 4] - GND [pin 2-1] - GND [pin 2] - GND [pin 4-1] - IN [pin 1] - OUT [pin 3] ### FL2 — [BFCN-5200](https://www.flux.ai/vasy_skral/bfcn-5200.md) - Part Type: RF Filter - Role Details: Post-filter for second RF upconversion chain (8–10 GHz bandpass filter) - Datasheet URL: https://www.minicircuits.com/pdfs/BFCN-5200+.pdf - Role: Filtering - Manufacturer Name: Mini-Circuits - Manufacturer Part Number: BFCN-5200+ - Package or Case Code: 4-SMD **Pins:** - GND [pin 4-2] - GND [pin 2-2] - GND [pin 4] - GND [pin 2-1] - GND [pin 2] - GND [pin 4-1] - IN [pin 1] - OUT [pin 3] ### FL3 — [BFCN-5200](https://www.flux.ai/vasy_skral/bfcn-5200.md) - Manufacturer Name: Mini-Circuits - Manufacturer Part Number: BFCN-5200+ - Package or Case Code: 4-SMD - Role: Filtering - Part Type: RF Filter - Datasheet URL: https://www.minicircuits.com/pdfs/BFCN-5200+.pdf - Role Details: Pre-filter for RF chain 1 (5–7 GHz BPF) **Pins:** - GND [pin 4-2] - GND [pin 2-2] - GND [pin 4] - GND [pin 2-1] - GND [pin 2] - GND [pin 4-1] - IN [pin 1] - OUT [pin 3] ### FL4 — [BFCN-5200](https://www.flux.ai/vasy_skral/bfcn-5200.md) - Part Type: RF Filter - Role Details: Pre-filter for RF chain 2 (5–7 GHz BPF) - Datasheet URL: https://www.minicircuits.com/pdfs/BFCN-5200+.pdf - Role: Filtering - Manufacturer Name: Mini-Circuits - Package or Case Code: 4-SMD - Manufacturer Part Number: BFCN-5200+ **Pins:** - GND [pin 4-2] - GND [pin 2-2] - GND [pin 4] - GND [pin 2-1] - GND [pin 2] - GND [pin 4-1] - IN [pin 1] - OUT [pin 3] ### J1 — [SMA-J-P-H-ST-EM1](https://www.flux.ai/jecstronic/sma-j-p-h-st-em1.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: RF input connector for 50Ω X-band upconverter - Manufacturer Part Number: SMA-J-P-H-ST-EM1 - Manufacturer Name: Samtec Inc. - Part Type: Connector - Datasheet URL: http://suddendocs.samtec.com/catalog_english/sma.pdf - Role: Interface **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J2 — [SMA-J-P-H-ST-EM1](https://www.flux.ai/jecstronic/sma-j-p-h-st-em1.md) - Datasheet URL: http://suddendocs.samtec.com/catalog_english/sma.pdf - Part Type: Connector - Manufacturer Name: Samtec Inc. - Role Details: External LO input connector - Manufacturer Part Number: SMA-J-P-H-ST-EM1 - Role: Interface - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J4 — [SMA-J-P-H-ST-EM1](https://www.flux.ai/jecstronic/sma-j-p-h-st-em1.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SMA-J-P-H-ST-EM1 - Role Details: RF input connector for 5–7 GHz, chain 2 - Part Type: Connector - Manufacturer Name: Samtec Inc. - Role: Interface - Datasheet URL: http://suddendocs.samtec.com/catalog_english/sma.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### U10 — [TCP-2-10X+](https://www.flux.ai/vasy_skral/tcp-2-10xplus.md) - Role Details: 2-way Wilkinson LO splitter at 3 GHz - Manufacturer Name: Mini-Circuits - Part Type: RF - Datasheet URL: https://www.minicircuits.com/pdfs/TCP-2-10X+.pdf - Manufacturer Part Number: TCP-2-10X+ - Role: Splitting **Pins:** - CON [pin 2] - CON [pin 5] - GND [pin 1] - PORT1 [pin 3] - PORT2 [pin 4] - SUM [pin 6] ### U14 — [TCP-2-10X+](https://www.flux.ai/vasy_skral/tcp-2-10xplus.md) - Part Type: RF - Manufacturer Name: Mini-Circuits - Role: Power Conversion - Role Details: Fixed 3.3V LDO for U8, pin V3_IN - Datasheet URL: https://www.minicircuits.com/pdfs/TCP-2-10X+.pdf - Manufacturer Part Number: TCP-2-10X+ **Pins:** - CON [pin 2] - CON [pin 5] - GND [pin 1] - PORT1 [pin 3] - PORT2 [pin 4] - SUM [pin 6] ### U15 — [TCP-2-10X+](https://www.flux.ai/vasy_skral/tcp-2-10xplus.md) - Manufacturer Part Number: TCP-2-10X+ - Role Details: 2-way Wilkinson LO splitter at 3 GHz - Datasheet URL: https://www.minicircuits.com/pdfs/TCP-2-10X+.pdf - Role: Splitting - Manufacturer Name: Mini-Circuits - Part Type: RF **Pins:** - CON [pin 2] - CON [pin 5] - GND [pin 1] - PORT1 [pin 3] - PORT2 [pin 4] - SUM [pin 6] ### U19 — [MCA-50H+](https://www.flux.ai/lcsc/mca-50hplus.md) - Manufacturer Name: Mini-Circuits - Package or Case Code: FILTER-SMD_10P-L7.6-W6.4-P1.27-LS6.8-BL - LCSC Part Number: C2683586 - Role: Signal Mixing / Detection - JLCPCB Part Class: Extended Part - Manufacturer Part Number: MCA-50H+ - Part Type: RF Mixers - Role Details: Passive double-balanced mixer for RF chain 1 mixing 5–7 GHz RF with ~3 GHz LO to 8–10 GHz output **Pins:** - GND [pin 1] - GND [pin 2] - GND [pin 4] - GND [pin 6] - GND [pin 7] - GND [pin 8] - GND [pin 9] - IF [pin 3] - LO [pin 10] - RF [pin 5] ### U20 — [MCA-50H+](https://www.flux.ai/lcsc/mca-50hplus.md) - Part Type: RF Mixers - Manufacturer Part Number: MCA-50H+ - Role Details: Passive double-balanced mixer for RF chain 2 mixing 5–7 GHz RF with ~3 GHz LO to 8–10 GHz output - Role: Signal Mixing / Detection - JLCPCB Part Class: Extended Part - LCSC Part Number: C2683586 - Package or Case Code: FILTER-SMD_10P-L7.6-W6.4-P1.27-LS6.8-BL - Manufacturer Name: Mini-Circuits **Pins:** - GND [pin 1] - GND [pin 2] - GND [pin 4] - GND [pin 6] - GND [pin 7] - GND [pin 8] - GND [pin 9] - IF [pin 3] - LO [pin 10] - RF [pin 5] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/fghjgfd/separate-pink-replicator](https://www.flux.ai/fghjgfd/separate-pink-replicator).* --- *Generated from [https://www.flux.ai/fghjgfd/separate-pink-replicator](https://www.flux.ai/fghjgfd/separate-pink-replicator)*