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| 型號(hào)： | 935061570112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類(lèi)： | 門(mén)電路 |
| 英文描述： | LV/LV-A/LVX/H SERIES, HEX 1-INPUT INVERT GATE, PDSO14 |
| 封裝： | 3.90 MM, PLASTIC, SOT-108-1, SO-14 |
| 文件頁(yè)數(shù)： | 12/14頁(yè) |
| 文件大?。?/td> | 154K |
| 代理商： | 935061570112 |
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Philips Semiconductors
Product specification
74LVU04
Hex inverter
2001 Jan 11
7
APPLICATION INFORMATION
Some applications for the 74LVU04 are:
Linear amplifier (see Figure 7)
In crystal oscillator designs (see Figure 8)
Astable multivibrator (see Figure 9)
SV00404
V
CC
R2
R1
1
mF
ZL
GND
U04
Note:
ZL > 10k; 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
< R1, R2 < 1 M
Typical unity gain bandwidth product is 5 MHz.
Cl, see Figure10
AOL = open loop amplification
Au = voltage amplification
Figure 7. LVU04 used as a linear amplifier.
EXTERNAL COMPONENTS FOR RESONATOR
(f < 1 MHz)
FREQUENCY
(kHz)
R1 (MW)
R2 (kW)
C1 (pF)
C2 (pF)
10 .. 15.9
2.2
220
56
20
16 .. 24.9
2.2
220
56
10
25 .. 54.9
2.2
100
56
10
55 .. 129.9
2.2
100
47
5
130 .. 199.9
2.2
47
5
200 .. 349.9
2.2
47
5
350 .. 600
2.2
47
5
WHERE:
All values given are typical and must be used as an initial set-up.
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 8. Crystal oscillator configuration.
OPTIMUM VALUE FOR R2
FREQUENCY
(MHz)
R2
(k
W)
Optimum
3
2.0
8.0
Minimum required ICC
Minimum influence due to change in VCC
6
1.0
4.7
Minimum ICC
Minimum influence by VCC
10
0.5
2.0
Minimum ICC
Minimum influence by VCC
14
0.5
1.0
Minimum ICC
Minimum influence by VCC
> 14
Replace R2 by C3 with a typical value of 35 pF
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