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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TMF8805 датащи(PDF) 62 Page - OSRAM GmbH |
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TMF8805 датащи(HTML) 62 Page - OSRAM GmbH |
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62 / 74 page  TMF8805 Application information Datasheet • PUBLIC • Document Feedback DS000692 • v7-00 • 2023-Dec-01 62 / 74 / 7 Application information 7.1 SPAD options 7.1.1 Signal SPADs Firmware can enable/disable SPADs in the array as needed. Table 109: Signal SPADs Min Nom Max Comment 1x SPADS 72 10x Attenuated SPADs 16 100x Attenuated SPADs 16 Physically there are 4x32=128 signal SPADs, but SPADs with too high dark count rate are disabled during production test. There are four TDCs (TDC1…TDC4) connected to the output of the SPADs. Each of the TDCs is connected to an array of 32 SPADs (SPADs with too high dark count rate are disabled). In distance mode the number of SPADs are reduced to typ. 40 SPADs to limit the FOV of the TMF8805. 7.1.2 Reference SPADs Table 110: Reference SPADs Min Nom Max Comment 100x Attenuated SPADs 9 Due to the high light intensity form the VCSEL which is located very close to the reference SPADs and has no optical barrier like the signal SPADs only highly attenuated SPADs are used. Physically there are 12 reference SPADs, but SPADs with too high dark count rate are disabled during production test. There is one TDC (TDC0) connected to the output of the SPADs. |
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