148.0 MHz SAW Filter
Project Name
252255B
1. Features
Typical 1dB bandwidth of
21.5 MHz
High attenuation
Single Ended Operation
Surface Mounted Package (SMD)
2. Electrical Specifications
Source and Load Impedance = 50
Room Temperature : +25℃
℃
Center Frequency (fo)
Insertion Loss
1 dB Bandwidth
3dB Bandwidth
40dB Bandwidth
Amplitude Ripple (fo ± 10.0 MHz)
Group Delay Variation (fo ± 10.0 MHz)
Absolute Delay
Ultimate Rejection
Temperature Coefficient of Frequency
MHz
dB
MHz
MHz
MHz
dB
nsec
usec
dB
ppm/℃
℃
Minimum
-
-
21.0
-
-
-
-
-
50
Typical
148.0
22.0
21.59
22.52
26.48
0.6
20
1.08
55
-72
Maximum
-
23.5
-
-
27.0
1.0
60
-
-
S1365 Package Dimension
Matching Schematic
11
5
Output
50
Ω
13.30±0.2
10
9
8
7
7
7.62±0.1
8
9
10
6.50±0.2
11
12
1.61±0.2
2.54±0.1
ITF 13A001
252255B
。
148-21.5M
1
2
3
4
6
6
1.50±0.1
11
Input
50
Ω
5
5
12
4
3
2
2.54±0.1
1
0.80±0.1
Dimensions shown are nominal in millimeters
Body : Al
2
O
3
Lid : Kovar, Ni Plated
Termination : Au plating 0.3 ~ 1.0um, over a 1.27 ~ 8.89um Ni Plating
Pin Configuration
Input
Output
11
5
Ground
Others
6, 12
Ground
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
http://www.itf.co.kr
sales@itf.co.kr
2013. 04. 01
Rev 1.0
148.0 MHz SAW Filter
Project Name
252255B
3. Typical Performance ( at +25℃ )
℃
1dB Bandwidth & Ripple
CH1 S21
CH2 S21
LOG
LOG
1 dB/
1 dB/
REF -21.56 dB
REF -22.06 dB
12 Nov 2012 13:31:27
1: 0. 0000 dB
0. 000 000 MHz
3:- . 08720 dB
20. 000 000 MHz
CH1 S21
LOG
10 dB/
40dB Bandwidth
REF -22.1 dB
12 Nov 2012 13:30:32
1: 0. 0000 dB
0. 000 000 MHz
CH1 Markers
REF=1
BW 21. 595253 MHz
:
Cor
cent : 147. 958062 MHz
Q 6. 8514
:
1_loss : -21 . 810 dB
1
2
1
Cor
2
CH1 Markers
REF=1
BW 26. 489741 MHz
:
cent : 147. 930559 MHz
Q 5. 5844
:
1_loss : -22 . 078 dB
3
3
2
Cor
4
CH2 Markers
REF=2
mean:-21 . 840 dB
s. dev : . 10610 dB
p-p : . 57000 dB
3
4
START 135. 500 000 MHz
STOP 160. 500 000 MHz
CENTER 148. 000 000 MHz
SPAN 80. 000 000 MHz
3dB Bandwidth & Group Delay
CH1 S21
CH2 S21
LOG
DEL
1 dB/
20 ns/
REF -21.56 dB
REF 1.076 us
12 Nov 2012 13:31:45
1: 0. 0000 dB
0. 000 000 MHz
3: 11. 719 ns
20. 000 000 MHz
CH1 S11
CH2 S22
1 U FS
1 U FS
Smith Chart
1: 10. 291
2: 11. 416
-47 . 939
-49 . 186
12 Nov 2012 13:32:08
22. 432 pF
148. 000 000 MHz
21. 864 pF
148. 000 000 MHz
CH1 Markers
REF=1
BW 22. 522387 MHz
:
Cor
cent : 147. 958033 MHz
Q 6. 5694
:
1_loss : -21 . 810 dB
1
2
Cor
3
Smo
Cor
3
2
CH2 Markers
REF=2
4
mean: 1. 0875 us
s. dev : 3. 8067 ns
p-p : 20. 508 ns
Cor
12
CENTER 148. 000 000 MHz
SPAN 25. 000 000 MHz
CENTER 148. 000 000 MHz
SPAN 80. 000 000 MHz
Wide band Properties
CH1 S21
LOG
10 dB/
REF -23.95 dB
12 Nov 2012 13:33:41
1: 0. 0000 dB
0. 000 000 MHz
CH1 S11
CH2 S22
SWR
SWR
10 /
10 /
SWR(S11 & S22)
REF 9.423
REF 8.784
12 Nov 2012 13:32:57
1: 9. 4341
148. 000 000 MHz
2: 8. 7842
148. 000 000 MHz
CH1 Markers
REF=1
2:-63 . 764 dB
148. 000 MHz
3:-52 . 855 dB
296. 000 MHz
Cor
1
1
Cor
2
3
START . 010 000 MHz
2
STOP 500. 000 000 MHz
CENTER 148. 000 000 MHz
SPAN 80. 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
http://www.itf.co.kr
sales@itf.co.kr
2013. 04. 01
Rev 1.0
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