74LVU04 PHILIPS [NXP Semiconductors], 74LVU04 Datasheet - Page 7

• Manufacturer Part Number: 74LVU04
• Description: Hex inverter
• Manufacturer: PHILIPS [NXP Semiconductors]

All values given are typical and must be used as an initial set-up.
Philips Semiconductors
APPLICATION INFORMATION
Some applications for the 74LVU04 are:
EXTERNAL COMPONENTS FOR RESONATOR
(f < 1 mHz)
WHERE:
1998 Apr 20
FREQUENCY
Linear amplifier (see Figure 7)
In crystal oscillator designs (see Figure 8)
Astable multivibrator (see Figure 9)
130 .. 199.9
200 .. 349.9
Hex inverter
55 .. 129.9
350 .. 600
10 .. 15.9
16 .. 24.9
25 .. 54.9
(kHz)
1 mF
Figure 7. LVU04 used as a linear amplifier.
Note:
3 k < R1, R2 < 1 M
Typical unity gain bandwidth product is 5 MHz.
C
A
A
A u + –
Z
l
OL
u
L
, see Figure10
= voltage amplification
> 10k ; A
R
= open loop amplification
1
R
1 )
1
2.2
2.2
2.2
2.2
2.2
2.2
2.2
(MW)
R 1
R 2
OL
A
= 20 (typical)
(1 ) A
OL
V CC
R
2
U04
OL
R
2
220
220
100
100
)
47
47
47
(KW)
; V
at
OMax(P*P)
V
1
CC
/
2
V
– 1.5 V centered
CC
C
1
56
56
56
47
47
47
47
(pF)
SV00404
Z
GND
L
C
2
20
10
10
5
5
5
5
(pF)
7
OPTIMUM VALUE FOR R
FREQUENCY
(MHz)
Note:
C
C
R
R
changes in V
2 mA at V
> 14
1
2
1
2
10
14
3
6
= 47 pF (typ.)
= 22 pF (typ.)
= 1 to 10 MW (typ.)
optimum value depends on the frequency and required stability against
Figure 8. Crystal oscillator configuration.
CC
CC
= 3 V and f = 1 MHz).
or average minimum I
R 1
(kW)
2.0
8.0
1.0
4.7
0.5
2.0
0.5
1.0
U04
R
Replace R
2
Minimum required I
Minimum influence due to change in V
Minimum I
Minimum influence by V
Minimum I
Minimum influence by V
Minimum I
Minimum influence by V
out
2
by C
2
CC
R 2
CC
CC
CC
3
(I
CC
with a typical value of 35 pF
C 1
is typically
Optimum
CC
Product specification
CC
CC
CC
74LVU04
SV00408
C
2
CC