255851B

147.5 MHz SAW Filter
Part Number 255851B
1. Features

Typical 1dB bandwidth of 57.5 MHz

Low-Loss Filter

Single Ended Operation

Surface Mounted Package (SMD)
2. Electrical Specifications
Source and Load Impedance = 50Ω
Room Temperature : +25℃
Minimum
Typical
Maximum
MHz
-
147.5
-
dB
-
19.5
21.5
1dB Bandwidth
MHz
57.0
57.5
-
3dB Bandwidth
MHz
-
58.7
-
20dB Bandwidth
MHz
-
63.0
63.3
40dB Bandwidth
MHz
-
65.8
66.5
dB
-
0.5
1.0
Group Delay Variation (fo ± 27.5 MHz)
nsec
-
25
60
Absolute Delay
usec
-
0.85
-
dB
40
45
-
ppm/℃
-
-72
-
Center Frequency (fo)
Insertion Loss
Amplitude Ripple (fo ± 27.5 MHz)
Ultimate Rejection
Temperature Coefficient of Frequency
S1365 Package Dimension
13.30±0.2
12
8
7.62±0.1
7
ITF 12A001
255851B
. 147.5-57.5M
1
2
3
4
7
9
8
10
11
6
6
1.50±0.1
5
5
2.54±0.1
11
9
1.61±0.2
6.50±0.2
10
Matching Schematic
L1 33nH
Input
50Ω
11
5
C2 62pF
Output
50Ω
12
4
3
2
2.54±0.1
C1
1
30pF
L2
39nH
0.80±0.1
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]
2012. 07. 05
Rev 1.0
147.5 MHz SAW Filter
Part Number 255851B
3. Typical Performance ( at +25℃ )
1dB Bandwidth & Ripple
CH2
CH4
S21
S21
LOG
LOG
1 dB/
1 dB/
3dB Bandwidth & Group Delay
5 Jul 2012 17:50:15
1: 0. 0000 dB
0. 000 000 MHz
3: - . 01730 dB
55. 000 000 MHz
REF -19.1 dB
REF -19.1 dB
BW:
CH2
CH4
S21
S21
LOG
DEL
1 dB/
100 ns/
5 Jul 2012 17:50:05
1: 0. 0000 dB
0. 000 000 MHz
3: -8 . 6750 ns
55. 000 000 MHz
REF -19.1 dB
REF 834 ns
CH2 Markers
REF=1
57. 504504 MHz
cent : 147 . 384183
BW:
MHz
CH2 Markers
REF=1
58. 696747 MHz
cent : 147 . 457530
Q: 2. 5630
1_loss : -19 . 521 dB
1
1
2
2
3
3
34
2
2
Cor
CH4 Markers
REF=2
mean : -19 . 449 dB
Cor
s. dev : . 07560
dB
Smo
p-p : . 50610
dB
Cor
4
CH4 Markers
REF=2
mean : 848 . 76 ns
4
s. dev : 3. 4748 ns
3
p-p : 21. 829 ns
Cor
CENTER 147 . 500 000 MHz
SPAN
72. 000 000 MHz
2
4
CENTER 147 . 500 000 MHz
20dB Bandwidth & 40dB Bandwidth
CH1
CH3
MHz
Q: 2. 5122
1_loss : -19 . 525 dB
S21
S21
LOG
LOG
10 dB/
10 dB/
BW:
Cor
2
CH1 S11
CH3 S22
1 U FS
1 U FS
1: 39. 063
2: 47. 891
5 Jul 2012 17:50:28
27. 778 nH
147. 500 000 MHz
26. 269 pF
147. 500 000 MHz
25. 744
-41 . 076
CH1 Markers
REF=1
62. 892770 MHz
cent : 147 . 889361
1
72. 000 000 MHz
Smith Chart(S11 & S22)
5 Jul 2012 17:49:52
1: 0. 0000 dB
0. 000 000 MHz
1: 0. 0000 dB
0. 000 000 MHz
REF -19.1 dB
REF -19.1 dB
SPAN
MHz
Cor
Q: 2. 3515
2
1_loss : -19 . 711 dB
Cor
Cor
3
1
4
3
4
BW:
CH3 Markers
REF=1
65. 521462 MHz
cent : 148 . 304586
2
MHz
Q: 2. 2635
1_loss : -19 . 711 dB
CENTER 147 . 500 000 MHz
SPAN 200 . 000 000 MHz
CENTER 147. 500 000 MHz
Wide band Properties
CH1
S21
LOG
10 dB/
SWR(S11 & S22)
5 Jul 2012 17:51:24
1: 0. 0000 dB
0. 000 000 MHz
REF -19.1 dB
CH1 Markers
REF=1
2: -59 . 109 dB
147 . 500 MHz
1
SPAN 200. 000 000 MHz
CH1
CH3
S11
S22
SWR
SWR
10 /
10 /
5 Jul 2012 17:50:51
1: 1. 8640
147 . 500 000 MHz
2: 2. 2689
147 . 500 000 MHz
REF 0
REF 0
Cor
3: -53 . 196 dB
295 . 000 MHz
4: -55 . 311 dB
442 . 500 MHz
Cor
5: -51 . 478 dB
590 . 000 MHz
1
2
3
5
4
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 147 . 500 000 MHz
http://www.itf.co.kr
SPAN 200 . 000 000 MHz
[email protected]
2012. 07. 05
Rev 1.0
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