| 전자부품 데이터시트 검색엔진 |
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SPC564A80L7 데이터시트(PDF) 105 Page - STMicroelectronics |
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SPC564A80L7 데이터시트(HTML) 105 Page - STMicroelectronics |
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105 / 157 page ![]() SPC564A74L7, SPC564A80B4, SPC564A80L7 Electrical characteristics Doc ID 15399 Rev 9 105/157 CJITTER CC T CLKOUT period jitter(6),(7),(8),(9) Peak-to-peak (clock edge to clock edge) fSYS maximum –5 5 % fCLKOUT T Long-term jitter (avg. over 2 ms interval) –6 6 ns tcst CC T Crystal start-up time (10), (11) —— 10 ms VIHEXT CC T EXTAL input high voltage Crystal Mode(12) Vxtal + 0.4 — V T External Reference(12), (13) VRC33 /2 + 0.4 VRC33 VILEXT CC T EXTAL input low voltage Crystal Mode(12) — Vxtal - 0.4 V T External Reference(12), (13) 0 VRC33 /2 - 0.4 — CC T XTAL load capacitance(10) 4MHz 5 30 pF 8MHz 5 26 12 MHz 5 23 16 MHz 5 19 20 MHz 5 16 40 MHz 5 8 tlpll CC P PLL lock time (10), (14) — — 200 s tdc CC T Duty cycle of reference —40 60 % fLCK CC T Frequency LOCK range — –6 6 % fsys fUL CC T Frequency un-LOCK range — –18 18 % fsys fCS fDS CC D Modulation Depth Center spread ±0.25 ±4.0 %fsys D Down Spread –0.5 –8.0 fMOD CC D Modulation frequency(15) — — 100 kHz 1. Considering operation with PLL not bypassed. 2. All internal registers retain data at 0 Hz. 3. “Loss of Reference Frequency” window is the reference frequency range outside of which the PLL is in self clocked mode. 4. Self clocked mode frequency is the frequency that the PLL operates at when the reference frequency falls outside the fLOR window. Table 26. PLLMRFM electrical specifications (VDDPLL = 1.08 V to 3.6 V, VSS = VSSPLL = 0 V, TA = TL to TH) (continued) Symbol C Parameter Conditions Value Unit min max |
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