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參數(shù)資料
| 型號： | PAFC248C |
| 廠商： | AVX CORP |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | 1 FUNCTIONS, 248.45 MHz, SAW FILTER |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 98K |
| 代理商： | PAFC248C |
Surface Acoustic Wave Filters
PAFC Series
Features
Small and low profile
Ceramic package type
Flat pass band characteristics
Low insertion loss
Circuit simplification
Application
PHS
How to Order
PAFC 243 B
qSeries
wCenter Frequency
eType
qw
e
(Unit : mm)
INPUT
OUTPUT
GROUND
N.C.
Tolerance:
±0.1[mm]
q
w
e
r
Tolerance:
±0.1[mm]
INPUT
OUTPUT
GROUND
q
w
e
G
IN
G
1.3
1.8
0.9
0.37
0.9
G
OUT
G
G:GROUND
1.3
Fig. E
Fig. A
Fig. C
Dimensions
Specifications
Test Circuit
Recommended Land Pattern
0.8
1.0
1.3
e
w
e
w
e
q
e
r
e
q
e
1.27
0.7
3.8
Fig. B
0.8
0.5
1.3
e
w
e
w
q
e
q
e
1.27
0.7
3.8
68nH
3.5pF
4.5pF
1.0pF
50
50
IN
OUT
Fig. D
150nH
120nH
1:1
5pF
50
50
IN
OUT
Parts No.
PAFC243B
PAFC248C
Insertion
Loss
Operating
Temperature
Storage
Temperature
Test
Circuit
Taping
Dimensions
Recommended
LandPattern
Dimen-
sions
Stop Band Attenuation
fn
±600kHz fn±1.2MHz fn±fa MHz()
Ripple
(fn
±110kHz)
243.95MHz 4.0dB max
±130kHz min 30dB min 40dB min 60dB min 1.5dB max 1.2s max
10 to 60°C 20 to 80°C
Fig. A Fig. C Fig. E Fig. G
248.45MHz 4.5dB max
±130kHz min 30dB min 35dB min 60dB min 1.5dB max 1.2s max
Fig. B Fig. D Fig. F Fig. G
Note PAFC248C : fa=21.5MHz
PAFC243B : fa
=21.6MHz
Nominal Center
Frequency
(fn)
Pass Band
Width
(at 3dB)
Group Delay
Time
(fn
±110kHz)
(Unit : mm)
Fig. F
1.3
0.9
1.3
0.9
0.37
0.9
1.8
0.9
G
IN
OUT
G
G: GROUND
Pb Free
RoHS Conforming
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