252508B

185.0 MHz SAW Filter
Part Number 252508B
1. Features
Typical 1dB bandwidth of 24.6 MHz
High attenuation
Single Ended Operation
Surface Mounted Package (SMD)
2. Electrical Specifications
Source and Load Impedance = 50Ω
Operating Temperature : +25℃
℃
Minimum
Typical
Maximum
MHz
-
185.0
-
dB
-
27.8
29.5
1dB Bandwidth
MHz
24.4
24.63
-
3dB Bandwidth
MHz
-
25.16
-
40dB Bandwidth
MHz
-
27.4
27.55
dB
-
0.45
1.0
Group Delay Variation (fo ± 11.8 MHz)
nsec
-
20
50
Absolute Delay
usec
-
2.06
-
dB
45
50
-
Center Frequency (fo)
Insertion Loss
Amplitude Ripple (fo ± 11.8 MHz)
Ultimate Rejection
ppm/℃
℃
Temperature Coefficient of Frequency
-72
S1365 Package Dimension
13.30±0.2
8
ITF 13A001
252508B
。185-24.6M
11
12
1
2
3
L2
7.62±0.1
7
4
7
8
9
Input
50Ω
10
1.50±0.1
5
5
11
5
L3
Output
50Ω
11
6
6
2.54±0.1
9
1.61±0.2
6.50±0.2
10
Matching Schematic
12
4
3
2
2.54±0.1
L1
1
0.80±0.1
L1 = L4 = 22nH, L2 = L3 = 12nH
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
L4
Tel: 82-32-621-1213
Fax: 82-32-621-1218
Pin Configuration
Input
11
Ground
6, 12
Output
5
Others
Ground
http://www.itf.co.kr
[email protected]
2013. 03. 25
Rev 1.0
185.0 MHz SAW Filter
Part Number 252508B
3. Typical Performance ( at +25℃
℃)
1dB Bandwidth & Ripple
CH1 S21
CH2 S21
LOG
LOG
1 dB/
1 dB/
40dB Bandwidth
20 Feb 2012 13:33:52
1: 0. 0000 dB
0. 000 000 MHz
3:- . 00770 dB
23. 600 000 MHz
REF -27.6 dB
REF -28.05 dB
CH1 S21
LOG
10 dB/
20 Feb 2012 13:31:27
1: 0. 0000 dB
0. 000 000 MHz
REF -27.7 dB
CH1 Markers
REF=1
BW: 24. 632138 MHz
cent : 185 . 000820 MHz
Cor
CH1 Markers
REF=1
BW: 27. 407749 MHz
1
Cor
cent : 184 . 977778 MHz
Q: 7. 5105
2
Q: 6. 7491
1_loss : -27 . 769 dB
1
1_loss : -27 . 809 dB
2
3
4
3
2
CH2 Markers
REF=2
mean:-27 . 797 dB
Cor
3
4
s. dev : . 10810 dB
p-p : . 46900 dB
CENTER 185 . 000 000 MHz
SPAN 30. 000 000 MHz
CENTER 185 . 000 000 MHz
3dB Bandwidth & Group Delay
CH1 S21
CH2 S21
LOG
DEL
1 dB/
50 ns/
50dB Bandwidth
20 Feb 2012 13:34:07
1: 0. 0000 dB
0. 000 000 MHz
3: 4. 9508 ns
23. 600 000 MHz
REF -27.6 dB
REF 2.106 us
CH1 S21
LOG
10 dB/
cent : 184 . 992082 MHz
20 Feb 2012 13:31:35
1: 0. 0000 dB
0. 000 000 MHz
REF -27.7 dB
CH1 Markers
REF=1
BW: 25. 168297 MHz
Cor
SPAN 85. 000 000 MHz
CH1 Markers
REF=1
BW: 27. 685978 MHz
1
Cor
cent : 184. 956117 MHz
Q: 7. 3502
2
Q: 6. 6805
1_loss : -27 . 769 dB
1
1_loss : -27 . 809 dB
2
3
Smo
Cor
2
CH2 Markers
REF=2
mean: 42. 0699 us
3
s. dev : 3. 6347 ns
3
p-p : 18. 310 ns
CENTER 185 . 000 000 MHz
SPAN 30. 000 000 MHz
CENTER 185. 000 000 MHz
Wide band Properties
CH1 S21
LOG
10 dB/
REF -29.8 dB
4
SPAN 85. 000 000 MHz
SWR(S11 & S22)
20 Feb 2012 13:37:27
1: 0. 0000 dB
0. 000 000 MHz
CH1 Markers
REF=1
2: -55 . 728 dB
185 . 000 MHz
CH1 S11
CH2 S22
SWR
SWR
1 /
1 /
20 Feb 2012 13:35:49
1: 2. 4325
185 . 000 000 MHz
2: 1. 7622
185 . 000 000 MHz
REF 2.446
REF 1.76
Cor
3: -55 . 458 dB
370 . 000 MHz
1
1
Cor
3
2
START
. 010 000 MHz
2
STOP 600 . 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 185 . 000 000 MHz
http://www.itf.co.kr
SPAN 85. 000 000 MHz
[email protected]
2013. 03. 25
Rev 1.0
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