251461B

157 MHz SAW Filter
Part Number 251461B
1. Features

Typical 1dB bandwidth of 13.05 MHz

Low-Loss Filter

Single Ended Operation

Surface Mounted Package (SMD)
2. Electrical Specifications
Source and Load Impedance = 50Ω
Operating Temperature : -35℃ ~ +60℃
Minimum
Typical
Maximum
MHz
-
157.0
-
dB
-
8.0
10.5
1dB Bandwidth
MHz
12.5
13.05
-
3dB Bandwidth
MHz
-
14.36
-
40dB Bandwidth
MHz
-
19.0
19.5
dB
-
0.4
1.0
Group Delay Variation (fo ± 5.0 MHz)
nsec
-
35
70
Absolute Delay
usec
-
0.63
-
dB
38
43
-
ppm/℃
-
-86
-
Minimum
Typical
Maximum
Center Frequency (fo)
Insertion Loss
Amplitude Ripple (fo ± 5.0 MHz)
Ultimate Rejection
Temperature Coefficient of Frequency
Room Temperature : +25℃
Insertion Loss
dB
-
8.0
10.0
Amplitude Ripple (fo ± 5.65 MHz)
dB
-
0.4
1.0
nsec
-
35
70
Group Delay Variation (fo ± 5.65 MHz)
S7050 Package Dimension
Matching Schematic
5.00
7.00±0.15
6
7
8
9
1.00±0.15
ITF 14A001
. 251461B
0.60
2.54
5.00±0.15
5
4
10
9
4
C1
L2
Out put
50Ω
L3
1
2
1.50±0.1
3
L1
I nput
50Ω
C1 = 22pF, L1 = 56nH, L2 = 2.7nH, L3 = 27nH
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
9
Ground
5, 10
Output
4
Others
Ground
http://www.itf.co.kr
[email protected]
2014. 03. 27
Rev 1.0
157 MHz SAW Filter
Part Number 251461B
3. Typical Performance ( at +25℃ )
1dB Bandwidth & Ripple
CH2
CH4
S21
S21
LOG
LOG
1 dB/
1 dB/
40dB Bandwidth
27 Mar 2014 13:41:01
1: 0. 0000 dB
0. 000 000 MHz
3: - . 27640 dB
11 . 300 000 MHz
REF -7.8 dB
REF -7.8 dB
CH1
S21
LOG
10 dB/
27 Mar 2014 13:40:14
1: 0. 0000 dB
0. 000 000 MHz
REF -7.8 dB
CH2 Markers
REF=1
13 . 088542 MHz
BW:
cent : 156 . 979516
MHz
BW:
1
Cor
Q: 11 . 994
CH1 Markers
REF=1
18 . 904592 MHz
cent : 157 . 293899
2
MHz
Q: 8. 3204
1_loss : -8 . 0155 dB
1
1_loss : -7 . 9855 dB
2
3
4
3
2
CH4 Markers
REF=2
mean : -8 . 0615 dB
Cor
s. dev : . 05880
dB
p-p : . 36260
dB
4
3
Cor
CENTER 157 . 000 000 MHz
SPAN
17 . 000 000 MHz
2
4
CENTER 157 . 000 000 MHz
3dB Bandwidth & Group Delay
CH2
CH4
S21
S21
LOG
DEL
1 dB/
50 ns/
BW:
60 . 000 000 MHz
Smith Chart(S11 & S22)
27 Mar 2014 13:40:49
1: 0. 0000 dB
0. 000 000 MHz
3: -25 . 759 ns
11 . 300 000 MHz
REF -7.8 dB
REF 610 ns
SPAN
CH1 S11
CH3 S22
1 U FS
1 U FS
1: 34. 439
2: 66. 437
11. 871
15. 199
27 Mar 2014 13:41:13
12. 034 nH
157. 000 000 MHz
15. 408 nH
157. 000 000 MHz
CH2 Markers
REF=1
14 . 397268 MHz
cent : 157 . 079498
MHz
Cor
Q: 10 . 910
1_loss : -8 . 0175 dB
1
Cor
2
1
2
3
2
4
CH4 Markers
REF=2
4 . 45 ns
mean : 625
3
Cor
Smo
s. dev : 6. 4225 ns
p-p : 29 . 261 ns
Cor
CENTER 157 . 000 000 MHz
SPAN
17 . 000 000 MHz
2
CENTER 157. 000 000 MHz
Wide band Properties
CH1
S21
LOG
10 dB/
SWR(S11 & S22)
27 Mar 2014 13:42:34
1: 0. 0000 dB
0. 000 000 MHz
REF -7.8 dB
1
SPAN 60. 000 000 MHz
CH1 Markers
REF=1
2: -46 . 435 dB
157 . 000 MHz
CH1
CH3
S11
S22
SWR
SWR
2 /
2 /
27 Mar 2014 13:42:05
1: 1. 5994
157 . 000 000 MHz
2: 1. 4703
157 . 000 000 MHz
REF 0
REF 0
Cor
3: -52 . 684 dB
314 . 000 MHz
Cor
2
3
1
2
START
. 010 000 MHz
STOP 1 000 . 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 157 . 000 000 MHz
http://www.itf.co.kr
SPAN
[email protected]
60 . 000 000 MHz
2014. 03. 27
Rev 1.0
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