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| 型号： | 74AHC3G14 |
| 厂商： | NXP Semiconductors N.V. |
| 英文描述： | Quadruple 2-Input Positive-NOR Gates 14-TSSOP -40 to 85 |
| 中文描述： | 四2正输入或非门 14-TSSOP封装；-40℃到85℃ |
| 文件页数： | 11/17页 |
| 文件大小： | 97K |
| 代理商： | 74AHC3G14 |
9397 750 12754
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 01 — 5 March 2004
11 of 17
Philips Semiconductors
74AHC3GU04
Inverter
14.1 Linear amplifier
14.2 Crystal oscillator
V
O(max)(p-p)
= V
CC
1.5 V centered at 0.5
×
V
CC
.
A
A
OL
= open loop amplification.
A
u
= voltage amplification.
R1
≥
3 k
; R2
≤
1 M
.
Z
L
> 10 k
; A
OL
= 20 (typical).
Typical unity gain bandwidth product is 5 MHz.
Fig 12. Used as a linear amplifier.
U04
R1
R2
V
CC
ZL
mna052
1
μ
F
A
u
1
------
1
(
A
OL
)
+
+
------------------------------------------
=
C1 = 47 pF (typical).
C2 = 22 pF (typical).
R1 = 1 M
to 10 M
(typical).
R2 optimum value depends on the frequency and required stability against changes in V
CC
or
average minimum I
CC
(I
CC
is typically 2 mA at V
CC
= 3 V and f = 1 MHz).
Fig 13. Crystal oscillator configuration.
Table 10:
Frequency (kHz)
10 to 15.9
16 to 24.9
25 to 54.9
55 to 129.9
130 to 199.9
200 to 349.9
350 to 600
External components for resonator (f < 1 MHz)
R1 (M
)
22
22
22
22
22
22
22
R2 (k
)
220
220
100
100
47
47
47
C1 (pF)
56
56
56
47
47
47
47
C2 (pF)
20
10
10
5
5
5
5
mna053
U04
out
R2
R1
C1
C2
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