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74AHCU04 Datenblatt(PDF) 9 Page - NXP Semiconductors |
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74AHCU04 Datenblatt(HTML) 9 Page - NXP Semiconductors |
9 / 16 page 1999 Sep 27 9 Philips Semiconductors Product specification Hex inverter 74AHCU04 APPLICATION INFORMATION Some applications for the AHCU04 are: • Linear amplifier (see Fig.12) • In crystal oscillator design (see Fig.13) • Astable multivibrator (see Fig.14). All values given are typical unless otherwise specified. Fig.11 Typical forward transconductance gfs as a function of the supply voltage at Tamb =25 °C. handbook, halfpage 0246 40 30 10 0 20 MNA355 VCC (V) gfs (mA/V) handbook, halfpage U04 R1 R2 VCC ZL MNA052 1 µF GND Fig.12 Used as a linear amplifier. ZL >10kΩ; AOL = 12 (typical) ; R1 ≥ 3kΩ,R2 ≤ 1MΩ. Typical unity gain bandwidth product is 5 MHz. AOL = open loop amplification. Au = voltage amplification. A u A OL 1 R1 R2 -------- 1AOL ) + ( + -------------------------------------------- – = V 0 max (p-p) V CC 2 V centered at 1 2 --- VCC – ≈ Fig.13 Crystal oscillator configuration. C1 = 47 pF (typical). C2 = 33 pF (typical). R1 = 1 to 10 M Ω (typical). R2 optimum value depends on the frequency and required stability against changes in VCC or average minimum ICC (ICC is typically 5 mA at VCC = 5 V and f = 10 MHz). handbook, halfpage MNA053 U04 out R2 R1 C1 C2 |
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Ähnliche Beschreibung - 74AHCU04 |
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