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STR73XF 数据表(PDF) 30 Page - STMicroelectronics |
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STR73XF 数据表(HTML) 30 Page - STMicroelectronics |
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30 / 40 page ![]() Electrical characteristics STR73xF 30/40 R-ESR Module of oscillator Negative Resistance fOSC = 4 MHz Cp(1) = 10pF C1 (2) = C 2 (3)= 10pF 150 555 - Ω C1 = C2 = 20pF 490 1035 - C1 = C2 = 30pF 490 1030 - C1 = C2 = 40pF 380 850 - fOSC = 5 MHz Cp = 10pF C1 = C2 = 10pF 160 470 - C1 = C2 = 20pF 415 800 - C1 = C2 = 30pF 340 735 - C1 = C2 = 40pF 260 580 - fOSC = 6 MHz Cp = 10pF C1 = C2 = 10pF 160 415 - C1 = C2 = 20pF 325 640 - C1 = C2 = 30pF 250 550 - C1 = C2 = 40pF 180 420 - fOSC = 7 MHz Cp = 10pF C1 = C2 = 10pF 160 375 - C1 = C2 = 20pF 260 525 - C1 = C2 = 30pF 185 420 - C1 = C2 = 40pF 135 315 - fOSC = 8MHz Cp = 10pF C1 = C2 = 10pF 155 340 - C1 = C2 = 20pF 210 435 - C1 = C2 = 30pF 145 335 - C1 = C2 = 40pF 100 245 - 1. CP represents the total capacitance between XTAL1 and XTAL2, including the shunt capacitance of the external quartz crystal as well as the total board parasitic cross-capacitance between XTAL1 track and XTAL2 track. 2. C1 represents the total capacitance between XTAL1 and ground, including the external capacitance tied to XTAL1 pin (CL) as well as the total parasitic capacitance between XTAL1 track and ground (this includes application board track capacitance to ground and device pin capacitance). 3. C2 represents the total capacitance between XTAL2 and ground, including the external capacitance tied to XTAL1 pin (CL) as well as the total parasitic capacitance between XTAL2 track and ground (this includes application board track capacitance to ground and device pin capacitance): Table 11. Main oscillator electrical characteristics Symbol Parameter Conditions Value Unit Min Typ Max |
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