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74LVCU04A Datasheet(PDF) 6 Page - NXP Semiconductors

Part No. 74LVCU04A
Description  Hex inverter
Download  10 Pages
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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74LVCU04A Datasheet(HTML) 6 Page - NXP Semiconductors

 
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Philips Semiconductors
Product specification
74LVCU04A
Hex inverter
1998 Jul 29
6
APPLICATION INFORMATION
Some applications for the 74LVU04 are:
Linear amplifier (see Figure 4)
In crystal oscillator designs (see Figure 5)
Astable multivibrator (see Figure 6)
SV00404
V
CC
R2
R1
1
mF
ZL
GND
U04
Note:
ZL > 10kΩ; AOL = 20 (typical)
Au + –
A
OL
1
)
R
1
R
2
(1
) A
OL
)
;V
OMax(P
*P)
VCC – 1.5 V centered
at 1/2 VCC
3 k
Ω < R1, R2 < 1 MΩ
Typical unity gain bandwidth product is 5 MHz.
Cl, see Figure10
AOL = open loop amplification
Au = voltage amplification
Figure 4. LVU04 used as a linear amplifier.
Note to Figure 4
ZL > 10 kW; AOL = 20 (typical)
Au
+ –
A
OL
1
)
R
1
R
2
(1
) A
OL)
; VO Max (P P)
≈ VCC – 1.5 V centered
at 1/2 VCC
3 k
W < R1, R2 < 1 MW
Typical unity gain bandwidth product is 50 MHz.
AOL = open loop amplification
Au = voltage amplification
SV00408
U04
R2
C
2
C1
R1
out
Note:
C1 = 47 pF (typ.)
C2 = 22 pF (typ.)
R1 = 1 to 10 MW (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).
Figure 5. Crystal oscillator configuration.
Note to Figure 5
C1 = 47 pF (typ.)
C2 = 22 pF (typ.)
R1 = 1 to 10 MW (typ.)
R2 optimum value depends on the frequency and required stability
against changes in VCC or average minimum ICC.
SV00406
U04
R
C
RS
U04
Note:
f
+
1
T
[
1
2.2 RC
R
S [
2x R
The average ICC (mA) is approximately
3.5 + 0.05 x f (MHz) x C (pF) at VCC = 3.0 V.
Figure 6. LVCU04 used as an astable multivibrator.
Note to Figure 6
f
+ 1
T
[
1
2.2 RC
RS ≈ 2 x R


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