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74LVCU04A Datasheet(PDF) 9 Page - NXP Semiconductors |
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74LVCU04A Datasheet(HTML) 9 Page - NXP Semiconductors |
9 / 17 page 74LVCU04A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved. Product data sheet Rev. 7 — 17 November 2011 9 of 17 NXP Semiconductors 74LVCU04A Hex inverter 12. Application information 12.1 Application diagrams Some applications for the 74LVCU04 are: • Linear amplifier: see Figure 10 • Crystal oscillator designs; see Figure 11 • Astable multivibrator; see Figure 12 Vo(p-p) =VCC 1.5 V centered at 0.5VCC. GOL = loop gain. Au = voltage amplification. R1 3k,R2 1M ZL >10k; AOL =20(typ.) Typical unity gain bandwidth product is 5 MHz. Fig 10. 74LVCU04A used as linear amplifier U04 R1 R2 VCC ZL GND mna931 1 μF A u G OL 1 R1 R2 ------- 1G OL + + ------------------------------------------ – = C1 = 47 pF (typical) C2 = 22 pF (typical) R1 = 1to10M (typical) 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) RS 2R. The average ICC is approximately 3.5 + 0.05f (MHz) C (pF) [mA] at V CC =3.0 V. Fig 11. 74LVCU04A used as crystal oscillator Fig 12. 74LVCU04A used as astable multivibrator mna932 U04 out R2 R1 C1 C2 U04 U04 RS RC mna933 f 1 T --- 1 2.2RC --------------- = |
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Similar Description - 74LVCU04A_15 |
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