參數(shù)資料
型號(hào)： 74LVCU04APWDH
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 通用總線功能
英文描述： CERAMIC CHIP/MIL-PRF-55681
中文描述： LVC/LCX/Z SERIES, HEX 1-INPUT INVERT GATE, PDSO14
封裝： PLASTIC, TSSOP-14
文件頁(yè)數(shù)： 6/10頁(yè)
文件大?。?/td> 98K
代理商： 74LVCU04APWDH
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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