261852B

245.0 MHz SAW Filter
Part Number 261852B
1. Features
Typical 1dB bandwidth of 18.5 MHz
High attenuation
Single Ended Operation
Surface Mounted Package (SMD)
2. Electrical Specifications
Source and Load Impedance = 50Ω
Room Temperature : +25℃
℃
Minimum
Typical
Maximum
MHz
-
245.0
-
dB
-
27.0
29.0
1dB Bandwidth
3dB Bandwidth
MHz
MHz
18.4
18.52
-
-
18.95
-
40dB Bandwidth
MHz
-
20.86
21.0
dB
-
0.6
1.2
Group Delay Variation (Fo±9.0MHz)
nsec
-
25
60
Absolute Delay
usec
-
2.09
-
dB
45
52
-
ppm/℃
℃
-
-18
-
Center Frequency (fo)
Insertion Loss
Amplitude Ripple (Fo±9.0MHz)
Ultimate Rejection
Temperature Coefficient of Frequency
Input POWER : +10dBm
S1365 Package Dimension
Matching Schematic
11
13.30±0.2
9
8
7
11
7
8
9
C1
5
1
2
3
4
2.54±0.1
5
L2
Output
50Ω
11
1.50±0.1
12
5
L1
Input
50Ω
10
6
6
1.61±0.2
6.50±0.2
10
7.62±0.1
C2
12
4
3
2
2.54±0.1
1
0.80±0.1
L1 = 22nH, L2 = 22nH, C1 = 15pF, C2 = 13pF
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]
2015. 03. 25
Rev 1.0
245.0 MHz SAW Filter
Part Number 261852B
3. Typical Performance ( at +25℃
℃)
1dB Bandwidth & Ripple
CH2 S21
CH4 S21
LOG
LOG
40dB Bandwidth
23 Mar 2012 07:22:39
1: 0. 0000 dB
0. 000 000 MHz
3: . 06970 dB
18. 000 000 MHz
1 dB/ REF -26.82 dB
1 dB/ REF -26.97 dB
CH1 S21
CH2 Markers
REF=1
BW: 18. 521936
MHz
LOG
23 Mar 2012 04:04:42
1: 0. 0000 dB
0. 000 000 MHz
10 dB/ REF -27.16 dB
CH1 Markers
REF=1
BW: 20. 860078
MHz
PRm
1
cent : 245. 044847 MHz
Q: 13. 230
cent : 245. 031682 MHz
Q: 11. 746
2
1_loss : -26 . 907 dB
1_loss : -27 . 073 dB
1
Cor
2
3
4
3
PRm
CH4 Markers
mean:-26REF=2
. 938 dB
1
2
3
4
s. dev : . 11460 dB
p-p : . 57430 dB
Cor
CENTER 245. 000 000 MHz
SPAN 30. 000 000 MHz
4
2
CENTER 245. 000 000 MHz
3dB Bandwidth & Group Delay
CH2 S21
CH4 S21
LOG
DEL
Smith Chart(S11 & S22)
23 Mar 2012 07:23:44
1: 0. 0000 dB
0. 000 000 MHz
3: 11. 088 ns
18. 000 000 MHz
1 dB/ REF -26.82 dB
150 ns/ REF 2.091 us
SPAN 60. 000 000 MHz
CH1 S11
CH3 S22
CH2 Markers
REF=1
BW: 18. 961029
MHz
1: 57. 697
2: 33. 398
1 U FS
1 U FS
23 Mar 2012 04:05:30
14. 809 nH
245. 000 000 MHz
10. 961 nH
245. 000 000 MHz
22. 797
16. 873
PRm
cent : 245. 050838 MHz
Q: 12. 924
1_loss : -26 . 905 dB
1
Cor
2
2
1
3
1
2
PRm
3
4
CH4 Markers
mean: 2.REF=2
0914 us
s. dev : 5. 5871 ns
Smo
p-p : 24. 414 ns
Cor
CENTER 245. 000 000 MHz
SPAN 30. 000 000 MHz
4
2
CENTER 245. 000 000 MHz
Wideband Properties
CH1 S21
LOG
10 dB/ REF -27.98 dB
SPAN 60. 000 000 MHz
SWR(S11 & S22)
23 Mar 2012 04:08:00
1:-27 . 917 dB
245. 000 000 MHz
CH1 S11
CH3 S22
SWR
SWR
1 /
1 /
23 Mar 2012 04:06:00
1: 1. 5604
245. 000 000 MHz
2: 1. 7704
245. 000 000 MHz
REF 1.561
REF 1.771
PRm
PRm
1
1
Cor
2
START . 010 000 MHz
STOP 800. 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
CENTER 245. 000 000 MHz
http://www.itf.co.kr
SPAN 60. 000 000 MHz
[email protected]
2015. 03. 25
Rev 1.0
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