251858B

101.25 MHz SAW Filter
Part Number 251858B
1. Features

Typical 1dB bandwidth of 18.1 MHz

Low-Loss Filter

Single Ended Operation

Surface Mounted Package (SMD)
2. Electrical Specifications
Source and Load Impedance = 50Ω
Room Temperature : +25℃
Minimum
Typical
Maximum
MHz
-
101.25
-
dB
-
12.0
14.5
1dB Bandwidth
MHz
17.6
18.1
-
3dB Bandwidth
MHz
-
18.8
-
40dB Bandwidth
MHz
-
22.45
23.0
dB
-
0.4
1.0
Group Delay Variation (fo ± 8.25 MHz)
nsec
-
45
80
Absolute Delay
usec
-
0.98
1.0
dB
40
46
-
ppm/℃
-
-86
-
Center Frequency (fo)
Insertion Loss
Amplitude Ripple (fo ± 8.25 MHz)
Ultimate Rejection
Temperature Coefficient of Frequency
S1365 Package Dimension
13.30±0.2
12
8
7.62±0.1
7
ITF 11A001
251858B
. 101.25-18.1M
1
2
3
4
7
9
8
10
220pF
11
6
6
1.50±0.1
5
5
2.54±0.1
11
9
1.61±0.2
6.50±0.2
10
Matching Schematic
C1
Input
50Ω
47nH
11
5
L2
Output
50Ω
12
4
3
2
2.54±0.1
L1
1
68nH
C2
91pF
0.80±0.1
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
11
Ground
6, 12
Output
5
Others
Ground
http://www.itf.co.kr
[email protected]
2012. 03. 16
Rev 1.0
101.25 MHz SAW Filter
Part Number 251858B
3. Typical Performance ( at +25℃ )
1dB Bandwidth & Ripple
CH2
CH4
S21
S21
LOG
LOG
1 dB/
1 dB/
3dB Bandwidth & Group Delay
19 Nov 2011 11:30:20
1: 0. 0000 dB
0. 000 000 MHz
3: - . 08140 dB
16 . 500 000 MHz
REF -11.2 dB
REF -11.2 dB
CH2
CH4
S21
S21
LOG
DEL
1 dB/
150 ns/
19 Nov 2011 11:29:43
1: 0. 0000 dB
0. 000 000 MHz
3: -18 . 807 ns
16 . 500 000 MHz
REF -11.2 dB
REF 933 ns
CH2 Markers
REF=1MHz
18 . 097283
BW:
cent : 101 . 193731
CH2 Markers
REF=1MHz
18 . 798422
BW:
MHz
cent : 101 . 266202
Q: 5. 5917
1_loss : -11 . 524 dB
1
2
2
3
3
4
PRm
CH4 Markers
mean : -11 REF=2
. 397 dB
s. dev : . 06020
dB
p-p : . 30020
dB
Cor
CH4 Markers
REF=2
mean : 979
. 59 ns
4
s. dev : 6. 7216 ns
3
Smo
p-p : 41 . 796 ns
Cor
CENTER 101 . 250 000 MHz
SPAN
23 . 000 000 MHz
2
4
CENTER 101 . 250 000 MHz
40dB Bandwidth
CH1
4
2
2
PRm
1_loss : -11 . 512 dB
1
3
MHz
Q: 5. 3870
S21
LOG
10 dB/
23 . 000 000 MHz
2
Smith Chart(S11 & S22)
19 Nov 2011 11:29:05
1: 0. 0000 dB
0. 000 000 MHz
REF -11.2 dB
SPAN
PRm
BW:
1
CH1 S11
CH3 S22
CH1 Markers
REF=1MHz
22 . 422982
cent : 101 . 518804
1 U FS
1 U FS
1: 74. 059
2: 25. 716
-34 . 480
-1 . 7031
19 Nov 2011 11:30:43
45. 588 pF
101. 250 000 MHz
922. 95 pF
101. 250 000 MHz
PRm
MHz
Q: 4. 5274
2
1_loss : -11 . 507 dB
Cor
Cor
2
1
3
4
CENTER 101 . 250 000 MHz
SPAN
80 . 000 000 MHz
CENTER 101. 250 000 MHz
Wide band Properties
CH1
S21
LOG
10 dB/
SWR(S11 & S22)
19 Nov 2011 11:31:45
1: 0. 0000 dB
0. 000 000 MHz
REF -11.2 dB
1
PRm
SPAN 80. 000 000 MHz
CH1 Markers
REF=1
2: -61 . 231 dB
101 . 250 MHz
CH1
CH3
S11
S22
SWR
SWR
10 /
10 /
19 Nov 2011 11:30:59
1: 1. 9711
101 . 250 000 MHz
2: 1. 9477
101 . 250 000 MHz
REF 0
REF 0
PRm
3: -55 . 834 dB
202 . 500 MHz
4: -67 . 408 dB
303 . 750 MHz
5: -79 . 234 dB
405 . 000 MHz
Cor
1
2
3
2
4
5
START
. 010 000 MHz
STOP 600 . 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 101 . 250 000 MHz
http://www.itf.co.kr
SPAN
[email protected]
80 . 000 000 MHz
2012. 03. 16
Rev 1.0
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