參數(shù)資料
型號: 74LVCU04A
廠商: NXP Semiconductors N.V.
英文描述: Hex inverter(六反相器)
中文描述: 十六進(jìn)制逆變器(六反相器)
文件頁數(shù): 6/10頁
文件大小: 98K
代理商: 74LVCU04A
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
VCC
R
2
R
1
1 F
Z
L
GND
U04
Note:
Z
L
> 10k
; A
OL
= 20 (typical)
Au
AOL
1
R1
R2
(1
AOL)
;VOMax(P
V
CC
– 1.5 V centered
at
1
/
2
V
CC
P)
3 k
< R1, R2 < 1 M
Typical unity gain bandwidth product is 5 MHz.
C
l
, see Figure10
A
OL
= open loop amplification
A
u
= voltage amplification
Figure 4. LVU04 used as a linear amplifier.
Note to Figure 4
Z
L
> 10 k ; A
OL
= 20 (typical)
A
u
A
OL
1
R1
R2
(1
A
OL
)
; V
O Max (P
P)
CC
at
1
/
2
V
CC
3 k < R1, R2 < 1 M
Typical unity gain bandwidth product is 50 MHz.
A
OL
= open loop amplification
A
u
= voltage amplification
SV00408
U04
R2
C2
C1
R1
out
Note:
C
1
= 47 pF (typ.)
C
2
= 22 pF (typ.)
R
1
= 1 to 10 M (typ.)
R
optimum value depends on the frequency and required stability against
changes in V
or average minimum I
CC
(I
CC
is typically
2 mA at V
CC
= 3 V and f = 1 MHz).
Figure 5. Crystal oscillator configuration.
Note to Figure 5
C
1
= 47 pF (typ.)
C
2
= 22 pF (typ.)
R
1
= 1 to 10 M (typ.)
R
2
optimum value depends on the frequency and required stability
against changes in V
CC
or average minimum I
CC
.
SV00406
U04
R
C
RS
U04
Note:
f
1
T
1
2.2 RC
2 x R
RS
The average I
(mA) is approximately
3.5 + 0.05 x f (MHz) x C (pF) at V
CC
= 3.0 V.
Figure 6. LVCU04 used as an astable multivibrator.
Note to Figure 6
1
T
R
S
2 x R
f
1
2.2 RC
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