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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UPSD325X датащи(PDF) 169 Page - STMicroelectronics |
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UPSD325X датащи(HTML) 169 Page - STMicroelectronics |
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169 / 176 page  169/176 µPSD325X DEVICES Figure 89. External Clock Cycle Figure 90. Recommended Oscillator Circuits Note: C1, C2 = 30pF ± 10pF for crystals For ceramic resonators, contact resonator manufacturer Oscillation circuit is designed to be used either with a ceramic resonator or crystal oscillator. Since each crystal and ceramic resonator have their own characteristics, the user should consult the crystal manufacturer for appropriate values of external components. Figure 91. PSD MODULE AC Measurement I/O Waveform Figure 92. PSD MODULE AC Measurement Load Circuit Table 141. Capacitance Note: 1. Sampled only, not 100% tested. 2. Typical values are for TA = 25°C and nominal supply voltages. 3.0V 0V Test Point 1.5V AI03103b Device Under Test 2.01 V 195 Ω C L = 30 pF (Including Scope and Jig Capacitance) AI03104b Symbol Parameter Test Condition Typ.2 Max. Unit CIN Input Capacitance (for input pins) VIN = 0V 46 pF COUT Output Capacitance (for input/ output pins) VOUT = 0V 812 pF |
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