# Compact UWB Golf Ball Tracker

## Description

Compact stacked rigid\-flex UWB/BLE golf\-ball tracker prototype powered by a factory\-tabbed CR1632 primary cell\. The current schematic removes all rechargeable and inductive\-charging circuitry, uses a TPS63900 2\.7 V rail with a recharge\-limited pulse reservoir, preserves SWD, and assumes aggressive sleep with short infrequent UWB ranging bursts\. PCB placement is intentionally not reconciled to this prototype schematic yet\.

## Project Details

- **Owner:** daveandersen
- **Created:** 9/2/2026
- **Last Updated:** 9/11/2026
- **Visibility:** Public

## Key Components

### ANT1 — [NN03\-320](https://flux.ai/adrian95/nn03-320~y18.md)

- Role Details: Candidate 1\.56\-10\.6 GHz antenna; final match and 25 mm disc performance require RF validation
- Manufacturer Name: Ignion
- Datasheet URL: https://mm\.digikey\.com/Volume0/opasdata/d220001/medias/docus/4329/NN03\-320\_Jan2021\.pdf
- Functional Group: RF Disc \- UWB Antenna
- Part Type: Antenna
- Manufacturer Part Number: NN03\-320
- Role: UWB Antenna
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]

### ANT2 — [RFECA3216060A1T](https://flux.ai/adrian95/rfeca3216060a1t~8ja.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: BLE Antenna
- Role Details: 3\.2 x 1\.6 x 0\.6 mm candidate; datasheet reference board exceeds 25 mm, so final antenna is a physical\-risk item
- Part Type: Antenna
- Manufacturer Name: Walsin Technology Corporation
- Manufacturer Part Number: RFECA3216060A1T
- Functional Group: RF Disc \- BLE Antenna
- Datasheet URL: http://www\.passivecomponent\.com/wp\-content/uploads/2018/10/ASC\_RFECA3216060A1T\_V09\.pdf

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### FB1 — [BLM03PG330SN1D](https://flux.ai/lcsc/blm03pg330sn1d~uxnn.md)

- Manufacturer Part Number: BLM03PG330SN1D
- Product Info Url: https://lcsc\.com/product\-detail/Ferrite\-Beads\-And\-Chips\_MuRata\_BLM03PG330SN1D\_33R\-25\_C160966\.html
- JLCPCB Part Class: Extended Part
- Package or Case Code: L0201
- Part Type: Ferrite Beads
- Role: Choke \(EMI Filter\)
- LCSC Part Number: C160966
- Functional Group: RF Disc \- UWB
- Manufacturer Name: muRata\(村田\)
- Datasheet URL: https://lcsc\.com/product\-detail/Ferrite\-Beads\-And\-Chips\_MuRata\_BLM03PG330SN1D\_33R\-25\_C160966\.html
- Role Details: DW3110 VDD2A/VDD2B isolation bead, 33 ohm at RF, 0201

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### Q1 — [2N7002K](https://flux.ai/jecstronic/2n7002k~8y.md)

- Manufacturer Name: MDD
- Part Type: Transistor
- Datasheet URL: https://www\.infineon\.com/dgdl/Infineon\-2N7002\-DS\-v02\_04\-en\.pdf
- Role Details: Hardware open\-drain DW3110 reset: D=UWB\_RST\_N, S=GND, G=UWB\_RST\_OD\_CTRL\. MCU P0\.17 HIGH asserts reset; LOW/Hi\-Z releases\. RSTN is never actively driven high\.
- Functional Group: RF Disc \- UWB
- Manufacturer Part Number: 2N7002K
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Switching

**Pins:**
- D [pin 3]
- G [pin 1]
- S [pin 2]

### TP1 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Power Conversion
- Functional Group: Coin Cell Power and Pulse Reservoir
- Part Type: Connector
- Role Details: Factory\-tabbed CR1632 positive pad; polarity\-keyed assembly, no drop\-inducing series diode

**Pins:**
- 1 [pin 1]

### TP10 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: External Pads and Debug
- Role: Test/Solder Pad
- Role Details: 1\.0 mm SMD pad minimizes connector area and fitted height
- Part Type: Connector

**Pins:**
- 1 [pin 1]

### TP11 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- Role: Test/Solder Pad
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: 1\.0 mm SMD pad minimizes connector area and fitted height
- Part Type: Connector
- Functional Group: External Pads and Debug

**Pins:**
- 1 [pin 1]

### TP12 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: RF Disc \- UWB Antenna
- Role Details: DW3210 second RF\-port expansion pad; not a PDoA implementation on DW3210
- Role: Test/Solder Pad
- Part Type: Connector

**Pins:**
- 1 [pin 1]

### TP2 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- Role: Power Conversion
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: Factory\-tabbed CR1632 negative pad / ground return
- Part Type: Connector
- Functional Group: Coin Cell Power and Pulse Reservoir

**Pins:**
- 1 [pin 1]

### TP3 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- Functional Group: Coin Cell Power and Pulse Reservoir
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: Pulse\-reservoir voltage monitor pad
- Role: Test/Solder Pad
- Part Type: Connector

**Pins:**
- 1 [pin 1]

### TP4 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: 1\.0 mm SMD pad minimizes connector area and fitted height
- Functional Group: External Pads and Debug
- Role: Test/Solder Pad
- Part Type: Connector

**Pins:**
- 1 [pin 1]

### TP5 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- Functional Group: External Pads and Debug
- Role Details: 1\.0 mm SMD pad minimizes connector area and fitted height
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Test/Solder Pad
- Part Type: Connector

**Pins:**
- 1 [pin 1]

### TP6 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: External Pads and Debug
- Role Details: 1\.0 mm SMD pad minimizes connector area and fitted height
- Part Type: Connector
- Role: Test/Solder Pad

**Pins:**
- 1 [pin 1]

### TP7 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: 1\.0 mm SMD pad minimizes connector area and fitted height
- Role: Test/Solder Pad
- Functional Group: External Pads and Debug
- Part Type: Connector

**Pins:**
- 1 [pin 1]

### TP8 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- Role: Test/Solder Pad
- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: External Pads and Debug
- Part Type: Connector
- Role Details: 1\.0 mm SMD pad minimizes connector area and fitted height

**Pins:**
- 1 [pin 1]

### TP9 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- Role Details: 1\.0 mm SMD pad minimizes connector area and fitted height
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Test/Solder Pad
- Functional Group: External Pads and Debug
- Part Type: Connector

**Pins:**
- 1 [pin 1]

### U3 — [TPS63900DSKR](https://flux.ai/lcsc/tps63900dskr~nuj5.md)

- JLCPCB Part Class: Extended Part
- Datasheet URL: https://www\.lcsc\.com/datasheet/C1518762\.pdf?spm=wm\.sxq\.inf\.ggs&lcsc\_vid=FlVZVVIFFgBeVAVTT1BXUgFfEwJeVlBfEwVcAlMHRAQxVlNeR1RZUFZWRFFfUDsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D
- LCSC Part Number: C1518762
- Package or Case Code: WSON\-10\_L2\.5\-W2\.5\-W0\.50\-TL\-EP
- Manufacturer Part Number: TPS63900DSKR
- Role: Power Conversion
- Role Details: TPS63900 always\-on buck\-boost, configured to 2\.7 V; 75 nA typical IQ and up to 400 mA capability
- Manufacturer Name: TI\(德州仪器\)
- Part Type: DC\-DC Converters
- Functional Group: Coin Cell Power and Pulse Reservoir

**Pins:**
- CFG1 [pin 3]
- CFG2 [pin 4]
- CFG3 [pin 5]
- EN [pin 1]
- EP [pin 11]
- GND [pin 8]
- LX1 [pin 9]
- LX2 [pin 7]
- SEL [pin 2]
- VIN [pin 10]
- VOUT [pin 6]

### U4 — [DW3210TR13](https://flux.ai/adrian95/dw3210tr13~xyb.md)

- Functional Group: RF Disc \- UWB
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Modulation / Demodulation
- Role Details: DW3210TR13 QFN\-40 UWB transceiver; non\-PDoA variant\. RF2 is shunt\-terminated to ground by R22=50 ohm and must use a 50 ohm PCB trace\.
- Manufacturer Name: Qorvo
- Manufacturer Part Number: DW3210TR13
- Part Type: Integrated Circuits
- Datasheet URL: https://www\.qorvo\.com/products/d/da008142

**Pins:**
- EXTON [pin 31]
- GND\_1 [pin 10]
- GND\_2 [pin 11]
- GND\_3 [pin 12]
- GND\_4 [pin 14]
- GND\_5 [pin 15]
- GND\_6 [pin 16]
- GND\_7 [pin 17]
- GND\_8 [pin 19]
- GND\_9 [pin 20]
- GPIO0/RXOKLED [pin 3]
- GPIO1/SFDLED [pin 4]
- GPIO2/RXLED [pin 6]
- GPIO3/TXLED [pin 7]
- GPIO4/EXTPA [pin 8]
- GPIO5/EXTTXE/SPIPOL [pin 5]
- GPIO6/EXTRXE/SPIPHA [pin 2]
- GPIO7/SYNC [pin 9]
- IRQ/GPIO8 [pin 1]
- RF1 [pin 18]
- RF2 [pin 13]
- RSTN [pin 33]
- SPICDI\_\(SPIMOSI\) [pin 35]
- SPICDO\_\(SPIMISO\) [pin 36]
- SPICLK [pin 34]
- SPICSN [pin 37]
- VDD1 [pin 29]
- VDD2A [pin 28]
- VDD2B [pin 23]
- VDD3 [pin 26]
- VIO\_D [pin 38]
- VSS\_1 [pin 39]
- VSS\_2 [pin 40]
- VSS1 [pin 30]
- VSS2 [pin 24]
- VSS3 [pin 25]
- VTX\_D [pin 27]
- WAKEUP [pin 32]
- XTI [pin 21]
- XTO [pin 22]

### U5 — [nRF52833\-QDAA\-R](https://flux.ai/lcsc/nrf52833-qdaa-r~c702.md)

- JLCPCB Part Class: Extended Part
- Manufacturer Part Number: nRF52833\-QDAA\-R
- Datasheet URL: https://docs\.nordicsemi\.com/bundle/nRF52833\-PS/resource/nRF52833\_PS\_v1\.3\.pdf
- LCSC Part Number: C2895249
- Manufacturer Name: NORDIC
- Role: BLE MCU
- Role Details: nRF52833 QFN40 controls UWB over SPI; P0\.17 drives Q1 open\-drain reset gate \(HIGH=assert, LOW/Hi\-Z=release\); P0\.03/AIN1 measures BAT\_SENSE while P0\.02 is driven LOW only during sampling and left high\-impedance otherwise; SWD programming\.
- Functional Group: RF Disc \- BLE Control
- Package or Case Code: QFN\-40\_L5\.0\-W5\.0\-P0\.40\-TL\-EP3\.6

**Pins:**
- ANT [pin 24]
- D\- [pin 12]
- D\+ [pin 13]
- DCC [pin 39]
- DEC1 [pin 1]
- DEC3 [pin 27]
- DEC4 [pin 38]
- DEC5 [pin 21]
- DEC6 [pin 26]
- DECUSB [pin 11]
- P0\.00\_XL1 [pin 2]
- P0\.01\_XL2 [pin 3]
- P0\.02\_AIN0 [pin 32]
- P0\.03\_AIN1 [pin 31]
- P0\.04\_AIN2 [pin 4]
- P0\.05\_AIN3 [pin 5]
- P0\.09\_NFC1 [pin 22]
- P0\.10\_NFC2 [pin 23]
- P0\.11 [pin 7]
- P0\.15 [pin 14]
- P0\.17 [pin 15]
- P0\.18\_nRESET [pin 16]
- P0\.20 [pin 17]
- P0\.28\_AIN4 [pin 33]
- P0\.29\_AIN5 [pin 34]
- P0\.30\_AIN6 [pin 35]
- P0\.31\_AIN7 [pin 36]
- P1\.09 [pin 6]
- SWDCLK [pin 20]
- SWDIO [pin 19]
- VBUS [pin 10]
- VDD [pin 18]
- VDD [pin 30]
- VDD [pin 8]
- VDD [pin 40]
- VDDH [pin 9]
- VSS [pin 37]
- VSS [pin 41]
- VSS\_PA [pin 25]
- XC1 [pin 28]
- XC2 [pin 29]

### U6 — [MAX40200AUK\+T](https://flux.ai/jecstronic/max40200aukplust~uqg.md)

- Role Details: MAX40200 ideal diode, always enabled from BAT\_RAW; isolates the CR1632 from pulse\-reservoir reverse current\. Typical enabled IQ is 7 uA \(18 uA max\), which is a material prototype lifetime cost\.
- Role: Protection
- Datasheet URL: https://datasheets\.maximintegrated\.com/en/ds/MAX40200\.pdf
- Functional Group: Coin Cell Power and Pulse Reservoir
- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Integrated Circuit
- Manufacturer Part Number: MAX40200AUK\+T
- Manufacturer Name: Analog Devices Inc\./Maxim Integrated

**Pins:**
- EN [pin 3]
- GND [pin 2]
- NC [pin 4]
- OUT [pin 5]
- VDD [pin 1]

### Y1 — [8Y38472012](https://flux.ai/silicon-yard/8y38472012~4d.md)

- Mount: Surface Mount
- Manufacturer Part Number: 8Y38472012
- Part Type: Crystals and Oscillators
- Package or Case Code:  4\-SMD, No Lead
- Manufacturer Name: TXC CORPORATION
- Role: Reference Clock
- Role Details: DW3110 38\.4 MHz, 10 pF CL, ±10 ppm, 2\.0 x 1\.6 x 0\.5 mm
- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/00675dd8ef099bab271409dbe1a7ddb993f416d78184616c2f26f61d21b439bf\.pdf
- Functional Group: RF Disc \- UWB
- Symbol Style: parametric\-v1

**Pins:**
- CRYSTAL\_1 [pin 1]
- CRYSTAL\_2 [pin 3]
- GND\_1 [pin 2]
- GND\_2 [pin 4]

### Y2 — [NX1612SA\-32MHZ\-STD\-CIS\-3](https://flux.ai/lcsc/nx1612sa-32mhz-std-cis-3~ja2s.md)

- Functional Group: RF Disc \- BLE Control
- Part Type: Crystals
- LCSC Part Number: C910049
- Package or Case Code: CRYSTAL\-SMD\_4P\-L1\.6\-W1\.2\-BL
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Reference Clock
- Manufacturer Name: NDK
- JLCPCB Part Class: Extended Part
- Role Details: nRF52833 HFXO; 32 MHz, 8 pF CL, 1\.6 x 1\.2 x 0\.3 mm
- Datasheet URL: https://www\.lcsc\.com/datasheet/C910049\.pdf
- Manufacturer Part Number: NX1612SA\-32MHZ\-STD\-CIS\-3

**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://flux\.ai/daveandersen/compact\-uwb\-golf\-ball\-tracker\~8x](https://flux.ai/daveandersen/compact-uwb-golf-ball-tracker~8x).*

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*Generated from [https://flux\.ai/daveandersen/compact\-uwb\-golf\-ball\-tracker\~8x](https://flux.ai/daveandersen/compact-uwb-golf-ball-tracker~8x)*