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Published byEugenia Haynes Modified over 8 years ago
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NIKHEF 2014 David Calvo IFIC (CSIC – Universidad de Valencia) Time to Digital Converters for KM3NeT Data Readout System
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LVDS Input Signal Output (48 bits) KC705 MULTIPLEXER Ch.1 Ch.2 Ch.31 SIGNAL DISTRIBUTION Enable Interface Ch.1 Ch.31 PC KM3NeT: 31 TDC CHANNELS 2
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TDC: TEST ML605 LVDS Input Signal Output (48 bits) KC705 Well-known pattern MULTIPLEXER Ch.1 Ch.2 Ch.31 SIGNAL DISTRIBUTION Enable Interface Ch.1 Ch.31 PC 3
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TDC: TEST 4
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5 2 nd LM32 CLOCK DISTRIBUTION SYSTEM OUTCLK (250 MHZ)
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TDC: PATTERNS TO TEST Jitter = 0.3 ns CHANNEL 1 CHANNEL 2 6
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TDC: PATTERN TO TEST Patterns replicated 5000 times 20000 and 10000 pulses x channel CHANNEL 1 CHANNEL 2 7
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TDC: RESULTS Pulse width CHANNEL 1CHANNEL 2 8
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TDC: RESULTS 16 CHANNELS 9
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SPI FLASH: REPLACING 10 The current 1 Gb spi model (n25q00AA) is not supported by xilinx. We have to check compatibility with Kintex-7 In our first test we mounted one S25FL256 replacing the N25Q1024 with the S25FL256 SPI flashing has worked fine
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THANKS FOR YOUR ATTENTION! 11
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