251920B

140.0 MHz SAW Filter
Part Number 251920B
1. Features
Typical 1dB bandwidth of 19.79 MHz
High attenuation
Single Ended Operation
Dual In-line Package (DIP)
2. Electrical Specifications
Source and Load Impedance = 50Ω
Operating Temperature : +25℃
℃
Minimum
Typical
Maximum
MHz
-
140.0
-
dB
-
25.5
27.0
2dB Bandwidth
MHz
19.75
19.79
19.85
25dB Bandwidth
MHz
-
20.57
20.65
40dB Bandwidth
MHz
-
20.75
-
dB
-
0.7
1.0
Group Delay Variation (fo ± 9.65 MHz)
nsec
-
60
150
Absolute Delay
usec
-
2.92
-
dB
45
50
-
ppm/℃
℃
-
-84
-
Center Frequency (fo)
Insertion Loss
Amplitude Ripple (fo ± 9.65 MHz)
Ultimate Rejection
Temperature Coefficient of Frequency
12.8±0.5
5.5max 6.0max
Matching Schematic
7.6±0.2
2.5±0.2
D3512 Package Dimension
1
5
22pF
39nH
22pF
Output
50Ω
25.4±0.2
2.5±0.2
0.45±0.05
ITF 10A001
251920B
140-19.8M
35.1±0.5
39nH
Input
50Ω
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
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
1
Ground
2,4
Output
5
Others
Ground
http://www.itf.co.kr
[email protected]
2010. 09.14
Rev 1.0
140.0 MHz SAW Filter
Part Number 251920B
3. Typical Performance ( at +25℃
℃)
1dB Bandwidth & Ripple
CH1 S21
CH2 S21
LOG
LOG
1 dB/
1 dB/
2dB Bandwidth & Group Delay
12 Aug 2010 11:46:33
1: 0. 0000 dB
0. 000 000 MHz
3: . 42430 dB
19. 300 000 MHz
REF -25.46 dB
REF -25.81 dB
CH1 S21
CH2 S21
LOG
DEL
12 Aug 2010 11:47:01
1: 0. 0000 dB
0. 000 000 MHz
3:-7 . 2023 ns
19. 300 000 MHz
1 dB/ REF -25.46 dB
100 ns/ REF 2.909 us
CH1 Markers
REF=1
BW: 19. 672160 MHz
cent : 140. 061185 MHz
Cor
CH1 Markers
REF=1
BW: 19. 794143 MHz
cent : 140. 058689 MHz
Cor
Q: 7. 1198
Q: 7. 0758
1_loss : -25 . 620 dB
1
1_loss : -25 . 620 dB
1
2
2
3
4
3
3
CH2 Markers
REF=2
mean: -25 . 649 dB
2
Cor
CENTER 140. 000 000 MHz
Smo
34
CH2 Markers
REF=2
mean: 2. 9237 us
2
Cor
s. dev : . 12030 dB
s. dev : 9. 6204 ns
p-p : . 65140 dB
p-p : 55. 542 ns
SPAN 25. 000 000 MHz
CENTER 140. 000 000 MHz
25dB Bandwidth
CH1 S21
LOG
40dB Bandwidth
12 Aug 2010 11:45:27
1: 0. 0000 dB
0. 000 000 MHz
10 dB/ REF -25.68 dB
CH1 S21
LOG
Cor
12 Aug 2010 11:45:39
1: 0. 0000 dB
0. 000 000 MHz
10 dB/ REF -25.68 dB
CH1 Markers
REF=1
BW: 20. 576856 MHz
1
SPAN 25. 000 000 MHz
CH1 Markers
REF=1
BW: 20. 746487 MHz
1
Cor
cent : 140. 031512 MHz
2
cent : 140. 017601 MHz
2
Q: 6. 8053
Q: 6. 7490
1_loss : -25 . 705 dB
3
1_loss : -25 . 705 dB
4
3
START 110. 000 000 MHz
STOP 170. 000 000 MHz
START 110. 000 000 MHz
Wide band Properties
CH1 S21
LOG
STOP 170. 000 000 MHz
SWR(S11 & S22)
12 Aug 2010 11:49:11
1: 0. 0000 dB
0. 000 000 MHz
10 dB/ REF -27.14 dB
4
CH1 Markers
REF=1
2:-54 . 065 dB
140. 000 MHz
MARKER 1-1
0 Hz
CH1 S11
CH2 S22
SWR
SWR
5 /
5 /
12 Aug 2010 11:48:39
1: 4. 8491
140. 000 000 MHz
2: 5. 4678
140. 000 000 MHz
REF 4.858
REF 5.475
Cor
3:-53 . 003 dB
280. 000 MHz
1
1
Cor
3
2
START . 010 000 MHz
2
STOP 500. 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 140. 000 000 MHz
http://www.itf.co.kr
SPAN 60. 000 000 MHz
[email protected]
2010. 09.14
Rev 1.0
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