251860B

198.0 MHz SAW Filter
Part Number 251860B
1. Features
Typical 1dB bandwidth of 18.9 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
-
198.0
-
dB
-
23.5
25.0
1dB Bandwidth
MHz
18.75
18.90
-
3dB Bandwidth
MHz
-
19.36
-
40dB Bandwidth
MHz
-
21.21
21.40
dB
-
0.6
1.2
Group Delay Variation (fo ± 9.05 MHz)
nsec
-
40
80
Absolute Delay
usec
-
1.97
2.0
dB
45
53
-
ppm/℃
-
-18
-
fo ± 10.4925 MHz
dBc
-
25
fo ± 10.7425 MHz
dBc
40
50
Center Frequency (fo)
Insertion Loss
Amplitude Ripple (fo ± 9.05 MHz)
Ultimate Rejection
Temperature Coefficient of Frequency
Relative Attenuation
Input POWER : +10dBm
S1365 Package Dimension
13.30± 0.2
8
7.62± 0.1
7
ITF 13A001
251860B
。198-18.9M
11
12
1
2
3
7
9
8
10
11
6
6
L2
Input
50Ω
11
5
L3
Output
50Ω
1.50± 0.1
5
4
5
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
L4
1
0.80± 0.1
L1 = 18nH, L2 = L3 = 3.3nH, L4 = 15nH
Dimensions shown are nominal in millimeters
Pin Configuration
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]
2013. 04. 30
Rev 1.0
198.0 MHz SAW Filter
Part Number 251860B
3. Typical Performance ( at +25℃
℃)
1dB Bandwidth & Ripple
CH1 S21
CH2 S21
LOG
LOG
1 dB/
1 dB/
40dB Bandwidth
6 Feb 2013 16:41:46
1: 0. 0000 dB
0. 000 000 MHz
3: . 08520 dB
18. 100 000 MHz
REF -23.32 dB
REF -23.85 dB
CH1 Markers
REF=1
BW: 18. 888858
MHz
PRm
CH1 S21
LOG
10 dB/
6 Feb 2013 16:39:48
1: 0. 0000 dB
0. 000 000 MHz
REF -23.58 dB
*
PRm
CH1 Markers
REF=1
BW: 21. 214218
MHz
1
cent : 197. 948447 MHz
Q: 10. 480
cent : 197. 936691 MHz
Q: 9. 3304
2
1_loss : -23 . 442 dB
1_loss : -23 . 584 dB
1
Cor
Cor
2
3
4
3
PRm
2
CH2 Markers
mean:-23REF=2
. 511 dB
3
4
s. dev : . 13320 dB
p-p : . 61780 dB
Cor
CENTER 198. 000 000 MHz
CENTER 198. 000 000 MHz
SPAN 22. 000 000 MHz
3dB Bandwidth & Group Delay
CH1 S21
CH2 S21
LOG
DEL
1 dB/
50 ns/
6 Feb 2013 16:42:13
1: 0. 0000 dB
0. 000 000 MHz
3: 3. 8208 ns
18. 100 000 MHz
REF -23.32 dB
REF 1.962 us
CH1 Markers
REF=1
BW: 19. 361692
MHz
PRm
SPAN 65. 000 000 MHz
Relative Attenuation
CH1 S21
LOG
10 dB/
6 Feb 2013 16:40:47
1: 0. 0000 dB
0. 000 000 MHz
REF -23.58 dB
*
PRm
CH1 Markers
REF=1
2:-25 . 222 dB
-10 . 4925 MHz
1
cent : 197. 944625 MHz
3:-46 . 938 dB
-10 . 7425 MHz
Q: 10. 224
1_loss : -23 . 438 dB
4:-35 . 285 dB
10. 4925 MHz
1
Cor
Cor
5:-62 . 829 dB
10. 7425 MHz
2
2
3
PRm
4
Smo
3
CH2 Markers
mean: 1.4REF=2
9785 us
2
s. dev : 5. 5714 ns
3
p-p : 26. 009 ns
Cor
5
CENTER 198. 000 000 MHz
SPAN 22. 000 000 MHz
CENTER 198. 000 000 MHz
Wideband Properties
CH1 S21
LOG
10 dB/
SWR(S11 & S22)
6 Feb 2013 16:43:53
1: 0. 0000 dB
0. 000 000 MHz
REF -24.06 dB
SPAN 65. 000 000 MHz
CH1 Markers
REF=1
2:-61 . 871 dB
198. 000 MHz
PRm
CH1 S11
CH2 S22
SWR
SWR
2 /
2 /
6 Feb 2013 16:43:08
1: 1. 8983
198. 000 000 MHz
2: 1. 3288
198. 000 000 MHz
REF 1.897
REF 1.329
PRm
3:-59 . 714 dB
396. 000 MHz
1
Cor
1
PRm
2
Cor
3
2
START . 010 000 MHz
STOP 700. 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 198. 000 000 MHz
http://www.itf.co.kr
SPAN 65. 000 000 MHz
[email protected]
2013. 04. 30
Rev 1.0
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