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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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VX6953CB датащи(PDF) 94 Page - STMicroelectronics |
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VX6953CB датащи(HTML) 94 Page - STMicroelectronics |
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94 / 107 page  Electrical characteristics VX6953CB 94/107 8209023 Rev 5 12.4 System clock - EXTCLK 12.5 Power down control - XSHUTDOWN Table 49. System clock - EXTCLK Symbol Parameter Min. Max. Unit Leakage current 4(1) 1. With DC coupled square wave clock. 30(2) 2. With DC VDIG applied. μA VCL DC coupled square wave low level 0 0.3 * VDIG V VCH DC coupled square wave high level 0.7 VDIG VDIG+0.5V V VCAC AC coupled sine wave 0.5 1.2 V fEXTCLK Clock frequency input 6.0 - 1%(3) 3. Nominal frequencies are 6.0 to 27 MHz with a 1% centre frequency tolerance. Tested at characterization only. 27 + 1%(3) MHz Duty cycles Clock frequency duty cycles 40 60 % Input jitter EXTCLK input jitter - Refer to Jitter application note(4) 4. ST Microelectronics will provide upon request an application note detailing the EXTCLK input jitter requirements. ps Table 50. Power down control - XSHUTDOWN Symbol Parameter Min. Typ. Max. Unit VIL Low level input voltage 0 - 0.3 * VDIG V VIH High level input voltage 0.7 * VDIG - VANA V |
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