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RV-8564 数据表(PDF) 29 Page - MICORO CRYSTAL SWITZERLAND |
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RV-8564 数据表(HTML) 29 Page - MICORO CRYSTAL SWITZERLAND |
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29 / 40 page ![]() Micro Crystal Real Time Clock / Calendar Module RV-8564 29/40 13.FREQUENCY CHARACTERISTICS PARAMETER SYMBOL CONDITIONS TYP. MAX. UNIT Frequency precision ∆ F/F TAMB = +25°C VDD = 3.0 V +/-10 +/-20 ppm Frequency vs. voltage characteristics ∆ F/V TAMB = +25°C VDD = 1.8 V to 5.5 V +/-0.8 +/-1.5 ppm / V Frequency vs. temperature characteristics ∆ F/FOPR TREF = +25°C VDD = 3.0 V -0.035 ppm/ °C 2 (T OPR-TO) 2 +/-10% ppm Turnover temperature T0 +25 +/-5 °C Aging first year max. VO ∆F/F At 25°C +/-3 ppm Oscillation startup time II At 25°C 350 500 ms CLKOUT duty cycle δ CLKOUT At 25°C 50 40 / 60 % 13.1.FREQUENCY VS. TEMPERATURE CHARACTERISTICS -180.0 -160.0 -140.0 -120.0 -100.0 -80.0 -60.0 -40.0 -20.0 0.0 20.0 -60 -40 -20 0 20 40 60 80 100 T [°C] -0.035 * (T-T0) 2 ppm (±10%) T0 = 25°C (±5°C) |
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