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STD RPi GPX2-TDC board

License: GPL 3.0

Mode: Editors' pick

Cloned from RPi TDC

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Update time: 2021-11-12 16:21:47
Creation time: 2020-07-23 16:16:44
Description
# Overview # Time-to-Digital converter plug-on module (shield) for Raspberry Pi B+. The board utilizes a GPX2-TDC from ScioSense with a time resolution of up to 10ps. The Stop-Signals are CMOS and the read-out of the TDC chip is done through the RPi's SPI bus or later on via FPGA. [The readout software for Raspberry Pi can be downloaded on GitHub](https://github.com/marvin5300/tdc-gpx2_software). It is tested and works quite well but it is still work in progress.
Design Drawing
schematic diagram
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PCB
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ID Name Designator Footprint Quantity
1 100µF C1,C12,C14,C15 C1206 4
2 1u C2,C3 0805 2
3 100nF C4,C7,C8,C9,C10,C11,C13,C16 C0805 8
4 30pF C5,C6 C0805 2
5 RASPBERRYPI-B+-GPIO JP1 2X20 1
6 External Vcc JP4 HDR-2X1/2.54 1
7 100uH L1 L1210 1
8 10 R1,R24 R0805 2
9 100k R2,R4,R3 R0603 3
10 100k R7,R12 R0805 2
11 1M R9 R0805 1
12 TDC GPX2 LQFP-64 U1 TDC GPX2 LQFP-64 1
13 AP7363-33D-13 U2 TO-252-3_L6.5-W5.8-P4.58-BR 1
14 U254-051T-4BH23-S2B USB1 MINI-USB-SMD_U254-051T-4BH23-S2B 1
15 5MHz X5 OSC-SMD_L11.5-W4.8-P9.50 1
16 0.1u C17,C18,C19,C20,C21 0603 5
17 51 R8,R43,R44,R48,R50 0603 5
18 10 R21,R45,R46,R47,R49 0603 5
19 100k R22,R23,R29,R30,R31,R32,R33,R34,R35,R36,R6,R10 0603 12
20 REFCLK X1 SMA90_DIP 1
21 Stop3 X6 SMA90_DIP 1
22 Stop1 X7 SMA90_DIP 1
23 Stop2 X8 SMA90_DIP 1
24 Stop4 X9 SMA90_DIP 1
25 HDR-M-2.54_2x20 J1 HDR-M-2.54_2X20 1
26 NOLCLKIN JP3 HDR-2X1/2.54 1
27 100 R5 0603 1

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