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參數資料
| 型號： | LMF380CIV |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 模擬濾波器 |
| 英文描述： | LMF380 Triple One-Third Octave Switched-Capacitor Active Filter |
| 中文描述： | TRIPLE SWITCHED CAPACITOR FILTER, CHEBYSHEV, BANDPASS, PQCC20 |
| 封裝： | PLASTIC, LCC-20 |
| 文件頁數： | 3/12頁 |
| 文件大小： | 232K |
| 代理商： | LMF380CIV |
Logic Input and Output Electrical Characteristics
The following specifications for V
a
e a
5V and V
b
e b
5V unless otherwise specified.
Boldface limits apply for T
MIN
to
T
MAX
;
all other limits apply for T
A
e
T
J
e a
25
§
C.
Symbol
Parameter
Conditions
(Note 7)
Typical
Tested
Limit
(Note 8)
(Limit)
Units
V
IH
V
IL
XTAL1
CMOS Clock
Input Voltage
Logical ‘‘1’’
Logical ‘‘0’’
V
a
e
5V, V
b
e b
5V
a
3.0
b
3.0
V (min)
V (max)
V
IH
V
IL
Logical ‘‘1’’
Logical ‘‘0’’
V
a
e
10V, V
b
e
0V
a
8.0
a
2.0
V (min)
V (max)
V
IH
V
IL
Logical ‘‘1’’
Logical ‘‘0’’
V
a
e
2.5V, V
b
e b
2.5V
a
1.5
b
1.5
V (min)
V (max)
V
IH
V
IL
Logical ‘‘1’’
Logical ‘‘0’’
V
a
e
5V, V
b
e
0V
a
4.0
a
1.0
V (min)
V (max)
V
OH
V
OL
Clock Output Logical ‘‘1’’
Clock Output Logical ‘‘0’’
I
OUT
e b
1 mA
I
OUT
e a
1 mA
V
a
b
1.0
V
b
a
1.0
V (min)
V (max)
I
IN
Input Current XTAL1
g
20
m
A (max)
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional. These ratings do not guarantee specific performance limits, however. For guaranteed specifications and test conditions, see the Electrical Characteris-
tics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under
the listed test conditions.
Note 2:
All voltages are measured with respect to GND unless otherwise specified.
Note 3:
When the input voltage (V
IN
) at any pin exceeds the power supplies (V
IN
k
V
b
or V
IN
l
V
a
), the current at that pin should be limited to 5 mA. The 20 mA
maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input current of 5 mA to four.
Note 4:
See AN450 ‘‘Surface Mounting Methods and Their Effect on Product Reliability’’ or the section titled ‘‘Surface Mount’’ found in any volume of the Linear
Data Book Rev. 1 for other methods of soldering surface mount devices.
Note 5:
The maximum power dissipation must be derated at elevated temperatures and is a function of T
Jmax
,
i
JA
, and the ambient temperature, T
A
. The
maximum allowable power dissipation at any temperature is P
D
e
(T
Jmax
b
T
A
)/
i
JA
or the number given in the Absolute Maximum Ratings, whichever is lower.
For guaranteed operation, T
Jmax
e
125
§
C. The typical thermal resistance (
i
JA
) of the LMF380N when board-mounted is 51
§
C.W.
i
JA
is typically 52
§
C/W for the
LMF380J, and 86
§
C/W for the LMF380V.
Note 6:
Human body model, 100 pF discharged through a 1.5 k
X
resistor.
Note 7:
Typicals are at T
J
e
25
§
C and represent the most likely parametric norm.
Note 8:
Limits are guaranteed to National’s Averge Outgoing Quality Level (AOQL).
Note 9:
The nominal test frequencies are: f
1
e
0.58 f
O
, f
2
e
0.95 f
O
, f
3
e
0.98 f
O
, f
4
e
f
O
, f
5
e
1.02 f
O
, f
6
e
1.05 f
O
, and f
7
e
1.39 f
O
. The actual test
frequencies listed in the table may differ slightly from the nominal values.
3
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| LMF380CMJ | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LMF380 Triple One-Third Octave Switched-Capacitor Active Filter |
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