TYPE
づ
実装
Dielectric Filters 面
け 用 小型誘電体フィルタ
4DFB
TYPE 4DFB (3 Pole SMD Type)
Frequency Range: 800~2500MHz
Temperature Range: − 40°C~+ 85°C
17.5
14.5
5
GND
Tolerance: ± 0.5
: Depends on Center Frequency.
: 長さは周 波数に依存します。
*
*
OUT
1
GND
11.5
IN
(Unit: mm)
Measurement values: 4DFB-915E-10
Characteristics 特性曲線
4DFB-915E-10
Passband Insertion Loss
Passband Ripple
1.84dB
0
5
0
0.45dB
1.39
5
Passband V.S.W.R.
10
15
20
25
30
35
40
45
50
10
15
20
25
30
35
Attenuation
at 882.5MHz
16.9dB
16.8dB
at 947.5MHz
Attenuation
Return loss
40
45
50
Center Frequency: 915MHz ꢀ
ꢀ Span: 200MHz
SELECTION GUIDE FOR STANDARD DEVICES
下記の表に示す製品番号は、標準品です。TOKOは、お客
作いたしますので、お客様の用途に適合する仕様が見当らない場合は、当社営業所ま
たは代理店にご連絡ください。
様のご要望に合わせ設計、製
The Part Numbers shown in the table below are standard devices, which
are readily available. TOKO will design and manufacture modified and
custom devices with specific characteristics to meet your requirements.
If you do not find the device for your application in this catalog, please
contact our sales or representative office.
TYPE 4DFB: SMD 3 Pole Designs
東光品番
中心周波数
帯域幅
挿入損失
帯域内リップル
V.S.W.R.
選択度
応用例
TOKO
Part
Number
Center
Frequency
(MHz)
Insertion
Loss
(dB) Max.
Ripple
in BW
(dB) Max.
V.S.W.R.
in BW
Max.
Bandwidth
Selectivity
Application
(fo ± MHz)
(dB) Min. (MHz)
4DFB-836E-10
4DFB-881E-10
4DFB-886A-10
4DFB-931A-10
4DFB-915E-10
836.5
881.5
886.0
931.0
915.0
± 12.5
± 12.5
± 1.0
± 1.0
± 13.0
2.5
2.5
4.5
4.5
2.7
1.0
1.0
1.0
1.0
1.0
2.0
2.0
2.0
2.0
2.0
12 (fo ± 32.5)
12 (fo ± 32.5)
41 (fo ± 45)
41 (fo ± 45)
12 (fo ± 32.5)
AMPS
AMPS
Cordless Phone
Cordless Phone
Spread Spectrum
4DFB-1030C-10
4DFB-1227D-10
4DFB-1472H-11
4DFB-1441A-12
4DFB-1489A-12
1030.0
1227.0
1472.0
1441.0
1489.0
± 7.5
± 10.0
± 20.0
± 2.0
± 2.0
3.2
3.2
2.0
3.0
3.0
1.0
1.0
0.8
1.0
1.0
1.6
2.0
2.0
2.0
2.0
20, 50 (fo ± 35, ± 140) TCAS
12, 40 (fo ± 35, ± 140) GPS
34 (fo ± 215)
DAB
47, 24 (fo − 260, + 48) PDC
46, 30 (fo − 130, − 48) PDC
4DFB-1575D-10
4DFB-1542G-10
4DFB-1643G-10
4DFB-1747N-10
4DFB-1842N-10
1575.0
1542.0
1643.5
1747.5
1842.5
± 10.0
± 17.0
± 17.0
± 35.0
± 35.0
3.2
2.0
1.6
2.0
2.0
1.0
1.0
0.5
1.2
1.2
2.0
2.0
1.5
2.0
2.0
12, 40 (fo ± 35, ± 140) GPS
17 (fo + 84.5)
MCSS/INMARSAT
18, 28 (fo − 67, + 108) MCSS/INMARSAT
12, 38 (fo ± 100, ± 350) PCN
24, 38 (fo ± 157, ± 350) PCN
4DFB-2442P-10
4DFB-1950L-10
4DFB-2140L-10
4DFB-920A-11
4DFB-920B-10
4DFB-1300E-11
2442.0
1950.0
2140.0
920.0
920.0
1300.0
± 40.0
± 30.0
± 30.0
± 2.5
± 5.0
± 12.5
2.5
3.0
3.0
5.0
3.0
3.0
1.2
1.0
1.0
1.0
1.0
0.8
2.0
1.0
2.0
2.0
2.0
2.0
5, 32 (fo ± 80, ± 250) Spread Spectrum
25, 25 (fo − 230, + 160) W-CDMA
30, 22 (fo − 340, − 160) W-CDMA
50, 18 (fo − 88, ± 20) Digital TV
32 (fo ± 55)
12 (fo ± 36)
Digital TV
CATV
入出力インピーダンス/Input Output impedance : 50Ω