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74AHC1GU04GV Datasheet(PDF) 7 Page - NXP Semiconductors |
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74AHC1GU04GV Datasheet(HTML) 7 Page - NXP Semiconductors |
7 / 12 page 74AHC1GU04_5 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 05 — 10 July 2007 7 of 12 NXP Semiconductors 74AHC1GU04 Inverter Maximum Vo(p-p) =VCC − 1.5 V centered at 0.5 × VCC. Gol = open loop gain Gv = voltage gain R1 ≥ 3kΩ,R2 ≤ 1MΩ ZL >10kΩ; Gol = 20 (typ.) Typical unity gain bandwidth product is 5 MHz. C1 = 47 pF (typ.) C2 = 22 pF (typ.) R1 = 1 M Ω to 10 MΩ (typ.) R2 optimum value depends on the frequency and required stability against changes in VCC or average minimum ICC (ICC is typically 2 mA at VCC = 3 V and f = 1 MHz). Fig 12. Used as a linear amplifier Fig 13. Crystal oscillator configuration U04 R1 R2 VCC ZL mna052 1 µF mna053 U04 out R2 R1 C1 C2 G v G ol 1 R1 R2 ------- 1G ol + () + --------------------------------------- – = Table 9. External components for resonator (f < 1 MHz) All values given are typical and must be used as an initial set-up. Frequency R1 R2 C1 C2 10 kHz to 15.9 kHz 22 M Ω 220 k Ω 56 pF 20 pF 16 kHz to 24.9 kHz 22 M Ω 220 k Ω 56 pF 10 pF 25 kHz to 54.9 kHz 22 M Ω 100 k Ω 56 pF 10 pF 55 kHz to 129.9 kHz 22 M Ω 100 k Ω 47 pF 5 pF 130 kHz to 199.9 kHz 22 M Ω 47 k Ω 47 pF 5 pF 200 kHz to 349.9 kHz 22 M Ω 47 k Ω 47 pF 5 pF 350 kHz to 600 kHz 22 M Ω 47 k Ω 47 pF 5 pF Table 10. Optimum value for R2 Frequency R2 Optimum for 3 kHz 2.0 k Ω minimum required ICC 8.0 k Ω minimum influence due to change in VCC 6 kHz 1.0 k Ω minimum required ICC 4.7 k Ω minimum influence by VCC 10 kHz 0.5 k Ω minimum required ICC 2.0 k Ω minimum influence by VCC 14 kHz 0.5 k Ω minimum required ICC 1.0 k Ω minimum influence by VCC >14 kHz - replace R2 by C3 with a typical value of 35 pF |
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