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SM5021AAH Scheda tecnica(PDF) 1 Page - Nippon Precision Circuits Inc |
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SM5021AAH Scheda tecnica(HTML) 1 Page - Nippon Precision Circuits Inc |
1 / 12 page SM5021 series SEIKO NPC CORPORATION —1 Crystal Oscillator Module ICs OVERVIEW The SM5021 series are crystal oscillator module ICs fabricated in NPC’s Molybdenum-gate CMOS, that incorporate high-frequency, low current consumption oscillator and output buffer circuits. Highly accurate thin-film feedback resistors and high-frequency capacitors are built-in, eliminating the need for external com- ponents to make a stable 3rd overtone oscillator. FEATURES I 3rd overtone oscillation I Oscillator capacitors CG, CD built-in I Inverter amplifier feedback resistor built-in (A ×, B× series) I TTL input level I Output drive capability • 4mA (VDD = 2.7V) • 8mA (VDD = 4.5V) I Output three-state function I Operating supply voltage range • 2.7 to 5.5V (A ×, K× series) • 4.5 to 5.5V (B ×, L× series) I Oscillator frequency output I 6-pin SOT (SM5021 ××H) I Chip form (CF5021 ××) SERIES CONFIGURATION ORDERING INFORMATION Version*1 *1. Chip form devices have designation CF5021 ××. Operating supply voltage range [V] Recommended operating frequency range*2 [MHz] *2. The recommended operating frequency is a yardstick value derived from the crystal used for NPC characteristics authentication. However, the oscilla- tor frequency band is not guaranteed. Specifically, the characteristics can vary greatly due to crystal characteristics and mounting conditions, so the oscillation characteristics of components must be carefully evaluated. Built-in capacitance [pF] gm ratio Rf [k Ω] Output frequency Output level Standby output state Chip SOT 3V operation 5V operation CG CD SM5021AAH 4.5 to 5.5 4.5 to 5.5 × 22 to 30 8 15 1 6.0 fo CMOS High impedance SM5021ABH 2.7 to 5.5 2.7 to 5.5 22 to 30 30 to 43 1 3.3 SM5021ACH 30 to 40 43 to 55 2 3.9 SM5021ADH 40 to 50 55 to 70 3 2.7 SM5021AEH 2.7 to 3.6 × 50 to 70 × 12 4 2.7 SM5021BAH 4.5 to 5.5 4.5 to 5.5 × 22 to 30 815 1 6.0 fo TTL High impedance SM5021BBH 30 to 43 1 3.3 SM5021BCH 43 to 55 2 3.9 SM5021BDH 55 to 70 3 2.7 SM5021KDH 2.7 to 5.5 2.7 to 5.5 22 to 50*3 *3. The 3rd overtone frequency range using an external resistor to set the cutoff frequency. 22 to 70*3 8 15 3 – fo CMOS High impedance SM5021KEH 2.7 to 3.6 2.7 to 3.6 50 to 70*3 × 12 4 SM5021LDH 4.5 to 5.5 4.5 to 5.5 × 22 to 70*3 8 15 3 – fo TTL High impedance Device Package SM5021 ××H SOT23-6 CF5021 ××–2 Chip form |
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