115.0 MHz SAW Filter
Part Number
251515B
1. Features
Typical 1dB bandwidth of
15.0 MHz
High attenuation
Single Ended Operation
Dual In-line Package (DIP)
2. Electrical Specifications
Source and Load Impedance = 50
Operating Temperature : +25℃
℃
Center Frequency (fo)
Insertion Loss
1dB Bandwidth
3dB Bandwidth
40dB Bandwidth
Amplitude Ripple (fo ±
7.4
MHz)
Group Delay Variation (fo ±
7.4
MHz)
Absolute Delay
Ultimate Rejection
Out of Bandgain
@Edge ± 400 kHz
Temperature Coefficient of Frequency
@Edge : 14.8 MHz
Minimum
MHz
dB
MHz
MHz
MHz
dB
nsec
usec
dB
dB
ppm/℃
℃
-
-
14.9
-
-
-
-
-
45
-
Typical
115.0
31.0
15.03
15.18
15.78
0.4
45
4.97
50
19.0
-18
Maximum
-
32.5
-
-
15.95
1.0
100
-
-
-
-
D3512 Package Dimension
12.8±0.5
5.5max 6.0max
7.6±0.2
2.5±0.2
Matching Schematic
1
Input
50
Ω
5
L2
Output
50
Ω
L1
ITF 13A001
251515B
115-15M
C1
25.4±0.2
C2
35.1±0.5
0.45±0.05
2.5±0.2
L1 = 68nH , L2 = 56nH, C1 = 51pF, C2 = 43pF
Pin Configuration
Dimensions shown are nominal in millimeters
Base : Fe(SPCC), Au plating over Ni plated
Cap : Cu & Cr Alloy, Ni Plated
Termination : Kovar, Au Plated
Input
Output
1
5
Ground
Others
2,4
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
115.0 MHz SAW Filter
Part Number
251515B
3. Typical Performance ( at +25℃ )
℃
1dB Bandwidth & Ripple
23 Dec 2009 06:25:39
40dB Bandwidth
23 Dec 2009 06:22:57
CH1 S21
CH2 S21
LOG
LOG
1 dB/ REF -30.78 dB
1 dB/ REF -31.11 dB
1: 0. 0000 dB
3: . 04780 dB
0. 000 000 MHz
14. 800 000 MHz
CH1 S21
LOG
10 dB/ REF -31.49 dB
1: 0. 0000 dB
0. 000 000 MHz
CH1 Markers
REF=1
BW 15. 031026 MHz
:
Cor
cent : 115. 008310 MHz
Q 7. 6514
:
1_
loss : -30 . 983 dB
1
2
*
CH1 Markers
REF=1
BW 15. 787727 MHz
:
cent : 115. 000591 MHz
2
Q 7. 2842
:
1_
loss : -31 . 182 dB
1
Cor
3
4
3
2
Cor
CH2 Markers
REF=2
mean:-31 . 016 dB
s. dev : . 06210 dB
p-p : . 35200 dB
3
4
CENTER 115. 000 000 MHz
SPAN 18. 000 000 MHz
CENTER 115. 000 000 MHz
SPAN 55. 000 000 MHz
3dB Bandwidth & Group Delay
23 Dec 2009 06:26:02
Out of Band gain
23 Dec 2009 06:24:41
CH1 S21
CH2 S21
LOG
DEL
1 dB/ REF -30.78 dB
100 ns/ REF 4.927 us
1: 0. 0000 dB
3:-20 . 703 ns
0. 000 000 MHz
14. 800 000 MHz
CH1 S21
CH2 S21
*
LOG
LOG
10 dB/ REF -31.29 dB
10 dB/ REF -31.26 dB
2: 0. 0000 dB
2: 0. 0000 dB
0. 000 000 MHz
0. 000 000 MHz
CH1 Markers
REF=1
BW 15. 183444 MHz
:
Cor
cent : 115. 006744 MHz
Q 7. 5745
:
1_
loss : -31 . 007 dB
1
2
CH1 Markers
REF=2
1: . 10880 dB
7. 40000 MHz
2
1
2
3:-19 . 825 dB
-400 . 000 kHz
Cor
3
3
3
Smo
Cor
2
3
CH2 Markers
REF=2
mean: 4 9761 us
4.
s. dev : 7. 8989 ns
p-p : 43. 742 ns
CH2 Markers
REF=2
1: . 07910 dB
-7 . 40000 MHz
3:-19 . 187 dB
400. 000 kHz
Cor
CENTER 115. 000 000 MHz
SPAN 18. 000 000 MHz
CENTER 115. 000 000 MHz
SPAN 55. 000 000 MHz
Wideband Properties
23 Dec 2009 06:28:12
SWR(S11 & S22)
23 Dec 2009 06:27:10
CH1 S21
LOG
10 dB/ REF -30.67 dB
1: 0. 0000 dB
0. 000 000 MHz
CH1 S11
CH2 S22
SWR
SWR
5 /
5 /
REF 1.772
REF 3.306
1: 1. 7711
2: 3. 3075
115. 000 000 MHz
115. 000 000 MHz
CH1 Markers
REF=1
2:-56 . 808 dB
115. 000 MHz
3:-51 . 346 dB
230. 000 MHz
Cor
1
1
Cor
2
3
2
START . 010 000 MHz
STOP 400. 000 000 MHz
CENTER 115. 000 000 MHz
SPAN 55. 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
Analog electronics
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