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HFA3761IN データシートの表示(PDF) - Intersil
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コンポーネント説明
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HFA3761IN
400MHz AGC and Quadrature IF Demodulator
Intersil
HFA3761IN Datasheet PDF : 9 Pages
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HFA3761
TABLE 1. LOW PASS FILTER PROGRAMING AND TUNING INFORMATION
MODE
BW0
LPF SEL1
0
LPF SEL0
0
f
3dB
(NOMINAL R
TUNE
)
2.2MHz
BW1
0
1
4.4MHz
BW2
1
0
8.8MHz
BW3
1
1
17.6MHz
f
TUNED
3dB
= -
f
-
3
----
d
---
B
----
N
----
R
O
----
T
-
M
---
U
-
I
--
N
-
N
---
A
-
E
---
L
---
∗
----
7
---
8
---
7
--
+20%
-20%
-30 -25 -20 -15 -10 -5 0 +5 +10 +15 +20 +25 +30
[(787 - R
TUNE
)/R
TUNE
]
*
100%
FREQUENCY
20% Low
R
TUNE
984
Ω
Nominal
787
Ω
20% High
656
Ω
FIGURE 1. TYPICAL f
3dB
vs R
TUNE
4-9
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