251855B

125.0 MHz SAW Filter
Part Number 251855B
1. Features
Typical 1dB bandwidth of 17.8 MHz
Low-Loss Filter
Single Ended Operation
Surface Mounted Package (SMD)
2. Electrical Specifications
Source and Load Impedance = 50Ω
Operating Temperature : -30℃
℃ ~ +80℃
℃
Minimum
Typical
Maximum
MHz
-
125.0
-
dB
-
11.0
13.5
1dB Bandwidth
MHz
17.3
17.85
-
3dB Bandwidth
MHz
-
18.9
-
40dB Bandwidth
MHz
-
22.7
23.2
dB
-
0.4
1.0
Group Delay Variation (fo ± 7.5 MHz)
nsec
-
40
80
Absolute Delay
usec
-
0.85
0.9
dB
40
45
-
ppm/℃
℃
-
-86
-
Minimum
Typical
Maximum
Center Frequency (fo)
Insertion Loss
Amplitude Ripple (fo ± 7.5 MHz)
Ultimate Rejection
Temperature Coefficient of Frequency
Room Temperature : +25℃
℃
Insertion Loss
dB
-
11.0
13.0
Amplitude Ripple (fo ± 8.1 MHz)
dB
-
0.4
1.0
nsec
-
40
80
Group Delay Variation (fo ± 8.1 MHz)
S1365 Package Dimension
13.30±0.2
8
7.62±0.1
7
ITF 11A001
251855B
. 125-17.8M
11
12
1
2
3
7
8
9
10
6
6
11
1.50±0.1
5
5
4
2.54±0.1
9
1.61±0.2
6.50±0.2
10
Matching Schematic
L1
Input
50Ω
39nH
11
L3
5
8.2nH
Output
50Ω
12
4
3
2
2.54±0.1
1
0.80±0.1
C1
75pF
L2
15nH
Pin Configuration
Dimensions shown are nominal in millimeters
Body : Al2O3
Lid : Kovar, Ni Plated
Termination : Au plating 0.3 ~ 1.0um, over a 1.27 ~ 8.89um Ni Plating
I T F Co., Ltd.
102-901, Bucheon Technopark 364, Samjeong-Dong,
Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
Tel: 82-32-621-1213
Fax: 82-32-621-1218
Input
11
Ground
6, 12
Output
5
Others
Ground
http://www.itf.co.kr
[email protected]
2011. 11. 04
Rev 1.0
125.0 MHz SAW Filter
Part Number 251855B
3. Typical Performance ( at +25℃
℃)
1dB Bandwidth & Ripple
CH2 S21
CH4 S21
LOG
LOG
3dB Bandwidth & Group Delay
31 Oct 2011 16:33:27
1: 0. 0000 dB
0. 000 000 MHz
3:- . 14360 dB
16. 200 000 MHz
1 dB/ REF -10.8 dB
1 dB/ REF -10.8 dB
CH2 S21
CH4 S21
LOG
DEL
31 Oct 2011 16:33:14
1: 0. 0000 dB
0. 000 000 MHz
3:-23 . 815 ns
16. 200 000 MHz
1 dB/ REF -10.8 dB
100 ns/ REF 823 ns
CH2Markers
REF=1
BW: 17. 893703
MHz
CH2Markers
REF=1
BW: 18. 885864
MHz
cent : 124. 840415 MHz
cent : 124. 924422 MHz
Q: 6. 9768
Q: 6. 6147
1_loss : -10 . 867 dB
1_loss : -10 . 874 dB
1
1
2
2
3
4
PRm
2
2
PRm
CH4Markers
mean:-10REF=2
. 915 dB
s. dev : . 08000 dB
CH4Markers
4 REF=2
mean: 850.
81 ns
3
s. dev : 6. 4708 ns
Smo
p-p : . 33880 dB
Cor
p-p : 35. 823 ns
Cor
CENTER125. 000 000 MHz
SPAN 22. 000 000 MHz
2
4
CENTER125. 000 000 MHz
40dB Bandwidth
CH1 S21
4
3
3
LOG
2
Wide band Properties
31 Oct 2011 16:32:50
1: 0. 0000 dB
0. 000 000 MHz
10 dB/ REF -10.8 dB
SPAN 22. 000 000 MHz
CH1 S21
LOG
31 Oct 2011 16:35:14
1: 0. 0000 dB
0. 000 000 MHz
10 dB/ REF -10.8 dB
1
CH1Markers
REF=1
BW: 22. 395100
MHz
PRm
1
CH1Markers
REF=1
2:-45 . 070 dB
106. 500 MHz
PRm
cent : 125. 145680 MHz
3:-51 . 405 dB
125. 000 MHz
Q: 5. 5881
2
1_loss : -10 . 789 dB
4:-52 . 718 dB
142. 100 MHz
Cor
5:-59 . 710 dB
250. 000 MHz
2
3
4
3
4
5
CENTER125. 000 000 MHz
SPAN 70. 000 000 MHz
START . 010 000 MHz
Smith Chart(S11 & S22)
CH1 S11
CH3 S22
1 U FS
1 U FS
1: 28. 404
2: 28. 375
-5 . 4658
21. 124
STOP 500. 000 000 MHz
SWR(S11 & S22)
31 Oct 2011 16:33:47
232. 95 pF
125. 000 000 MHz
26. 896 nH
125. 000 000 MHz
PRm
CH1 S11
CH3 S22
SWR
SWR
10 /
10 /
31 Oct 2011 16:34:11
1: 1. 7916
125. 000 000 MHz
2: 2. 1821
125. 000 000 MHz
REF 0
REF 0
PRm
2
Cor
Cor
1
1
2
CENTER125. 000 000 MHz
SPAN 70. 000 000 MHz
I T F Co., Ltd.
102-901, Bucheon Technopark 364, Samjeong-Dong,
Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
Tel: 82-32-621-1213
Fax: 82-32-621-1218
CENTER125. 000 000 MHz
http://www.itf.co.kr
SPAN 70. 000 000 MHz
[email protected]
2011. 11. 04
Rev 1.0
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