144.0 MHz SAW Filter
Part Number
252157B
1. Features
Typical 1dB bandwidth of
21.4 MHz
High attenuation
Single Ended Operation
Surface Mounted Package (SMD)
2. Electrical Specifications
Source and Load Impedance = 50
Room Temperature : +25℃
℃
Center Frequency (fo)
Insertion Loss
1dB Bandwidth
3dB Bandwidth
40dB Bandwidth
Amplitude Ripple (fo ± 10.6 MHz)
Group Delay Variation (fo ± 10.6 MHz)
Absolute Delay
Ultimate Rejection
Temperature Coefficient of Frequency
MHz
dB
MHz
MHz
MHz
dB
nsec
usec
dB
ppm/℃
℃
Minimum
-
-
21.2
-
-
-
-
-
50
Typical
144.0
23.5
21.4
21.9
23.8
0.5
30
1.53
52
-72
Maximum
-
25.0
-
-
24.0
1.0
80
-
-
S1365 Package Dimension
Matching Network Configuration
11
5
L2
Output
50
Ω
13.30±0.2
10
9
8
7
7
7.62±0.1
8
9
10
Input
50
Ω
11
L1
6.50±0.2
11
6
6
1.50±0.1
C1
C2
12
5
2.54±0.1
5
12
1.61±0.2
1
2
3
4
4
3
2
2.54±0.1
1
0.80±0.1
L1 = 27nH, L2 = 33nH, C1 = 18pF, C2 = 16pF
Pin Configuration
Dimensions shown are nominal in millimeters
Body : Al
2
O
3
Lid : Kovar, Ni Plated
Termination : Au plating 0.3 ~ 1.0um, over a 1.27 ~ 8.89um Ni Plating
Input
Output
11
5
Ground
Others
6, 12
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
2015. 02. 26
Rev 1.0
144.0 MHz SAW Filter
Part Number
252157B
3. Typical Performance ( at +25℃ )
℃
1dB Bandwidth & Ripple
CH1 S21
CH2 S21
LOG
LOG
1 dB/ REF -22.9 dB
1 dB/ REF -23.45 dB
7 Sep 2010 10:40:30
1: 0. 0000 dB
0. 000 000 MHz
3: . 06960 dB
20. 600 000 MHz
CH1 S21
LOG
40dB Bandwidth
10 dB/ REF -23.19 dB
7 Sep 2010 10:39:41
1: 0. 0000 dB
0. 000 000 MHz
CH1Markers
REF=1
BW 21. 435226 MHz
:
Cor
cent : 144. 016675 MHz
Q 6. 7187
:
1_
loss : -23 . 094 dB
1
2
1
Cor
2
CH1Markers
REF=1
BW 23. 845558 MHz
:
cent : 143. 991950 MHz
Q 6. 0385
:
1_
loss : -23 . 170 dB
3
3
2
Cor
4
CH2Markers
REF=2
mean
:-23 . 116 dB
s. dev: . 10440 dB
p-p : . 48320 dB
3
4
CENTER144. 000 000 MHz
SPAN 26. 000 000 MHz
START 99. 000 000 MHz
STOP 189. 000 000 MHz
3dB Bandwidth & Group Delay
CH1 S21
CH2 S21
LOG
DEL
1 dB/ REF -22.9 dB
100 ns/ REF 1.513 us
7 Sep 2010 10:40:43
1: 0. 0000 dB
0. 000 000 MHz
3: 3. 7110 ns
20. 600 000 MHz
CH1 S11
CH2 S22
Smith Chart(S11 & S22)
1 U FS
1 U FS
1: 6. 1348
2: 8. 4360
-12 . 842
-12 . 488
7 Sep 2010 10:41:32
86. 066 pF
144. 000 000 MHz
88. 502 pF
144. 000 000 MHz
CH1Markers
REF=1
BW 21. 909000 MHz
:
Cor
cent : 144. 008815 MHz
Q 6. 5730
:
1_
loss : -23 . 094 dB
1
2
Cor
3
Smo
Cor
3
2
CH2Markers
REF=2
mean 4 5337 us
: 1.
s. dev: 4. 1793 ns
p-p : 22. 888 ns
Cor
1
2
CENTER144. 000 000 MHz
SPAN 26. 000 000 MHz
CENTER144. 000 000 MHz
SPAN 90. 000 000 MHz
Wideband Properties
CH1 S21
LOG
10 dB/ REF -24.31 dB
7 Sep 2010 10:42:02
1: 0. 0000 dB
0. 000 000 MHz
CH1 S11
CH2 S22
SWR
SWR
SWR(S11 & S22)
10 /
10 /
REF 8.703
REF 6.305
7 Sep 2010 10:41:22
1: 8. 7041
144. 000 000 MHz
2: 6. 3096
144. 000 000 MHz
MARKER 1-1
0 Hz
1
CH1Markers
REF=1
2:-61 . 984 dB
144. 000 MHz
3:-60 . 016 dB
288. 000 MHz
Cor
1
Cor
2
2
START . 010 000 MHz
3
STOP 500. 000 000 MHz
CENTER144. 000 000 MHz
SPAN 90. 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
2015. 02. 26
Rev 1.0
Analog electronics
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