254851B

125 MHz SAW Filter
Part Number 254851B
1. Features

Typical 1dB bandwidth of 46.8 MHz

Low-Loss Filter

Single Ended Operation

Surface Mounted Package (SMD)
2. Electrical Specifications
Source and Load Impedance = 50Ω
Operating Temperature : -30℃ ~ +80℃
Minimum
Typical
Maximum
MHz
-
125.0
-
dB
-
17.5
20.0
1dB Bandwidth
MHz
46.3
46.8
-
3dB Bandwidth
MHz
-
48.15
-
40dB Bandwidth
MHz
-
54.5
55.0
dB
-
0.35
1.0
Group Delay Variation (fo ± 21.5 MHz)
nsec
-
20
60
Absolute Delay
usec
-
0.8
-
dB
40
46
-
ppm/℃
-
-72
-
Minimum
Typical
Maximum
Center Frequency (fo)
Insertion Loss
Amplitude Ripple (fo ± 21.5 MHz)
Ultimate Rejection
Temperature Coefficient of Frequency
Room Temperature : +25℃
Insertion Loss
dB
-
17.5
19.5
Amplitude Ripple (fo ± 22.0 MHz)
dB
-
0.35
1.0
nsec
-
20
60
Group Delay Variation (fo ± 22.0 MHz)
S1365 Package Dimension
13.30±0.2
12
8
7.62±0.1
7
ITF 12A001
254851B
. 125-46.8M
1
2
3
4
7
6
6
5
5
9
8
L1
I nput
50Ω
10
11
5
C2
Out put
50Ω
11
C1
1.50±0.1
2.54±0.1
11
9
1.61±0.2
6.50±0.2
10
Matching Schematic
L2
12
4
3
2
2.54±0.1
1
0.80±0.1
C1 = 33pF, L1 = 47nH, C2 = 82pF, L2 = 68nH
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]
2013. 03. 26
Rev 1.0
125 MHz SAW Filter
Part Number 254851B
3. Typical Performance ( at +25℃ )
1dB Bandwidth & Ripple
CH2
CH4
S21
S21
LOG
LOG
1 dB/
1 dB/
40dB Bandwidth
1 Jun 2012 11:47:21
1: 0. 0000 dB
0. 000 000 MHz
3: - . 02800 dB
44 . 000 000 MHz
REF -17.1 dB
REF -17.1 dB
CH1
CH2 Markers
REF=1MHz
46 . 772497
BW:
cent : 124 . 830759
S21
LOG
10 dB/
1 Jun 2012 11:46:36
1: 0. 0000 dB
0. 000 000 MHz
REF -17.1 dB
PRm
BW:
1
MHz
Q: 2. 6689
MHz
Q: 2. 3139
2
1_loss : -17 . 363 dB
1
CH1 Markers
REF=1MHz
54 . 306359
cent : 125 . 658160
1_loss : -17 . 446 dB
Cor
2
3
3 4
2
PRm
CH4 Markers
mean : -17 REF=2
. 338 dB
s. dev : . 05580
dB
p-p : . 33950
dB
3
4
Cor
CENTER 125 . 000 000 MHz
SPAN
60 . 000 000 MHz
2
4
CENTER 125 . 000 000 MHz
3dB Bandwidth & Group Delay
CH2
CH4
S21
S21
LOG
DEL
1 dB/
50 ns/
Smith Chart(S11 & S22)
1 Jun 2012 11:47:00
1: 0. 0000 dB
0. 000 000 MHz
3: -449 . 29 ps
44 . 000 000 MHz
REF -17.1 dB
REF 787 ns
BW:
SPAN 150 . 000 000 MHz
CH1 S11
CH3 S22
4
CH2 Markers
REF=1MHz
48 . 146950
cent : 124 . 953196
1 U FS
1 U FS
1: 29. 578
2: 26. 328
25. 470
-46 . 006
1 Jun 2012 11:47:45
32. 429 nH
125. 000 000 MHz
27. 676 pF
125. 000 000 MHz
PRm
MHz
Q: 2. 5952
1_loss : -17 . 365 dB
1
1
Cor
2
3
2
PRm
CH4 Markers
REF=2
mean4: 799
. 82 ns
s. dev : 3. 2052 ns
3
Smo
p-p : 18 . 896 ns
2
Cor
CENTER 125 . 000 000 MHz
SPAN
60 . 000 000 MHz
2
CENTER 125. 000 000 MHz
Wide band Properties
CH1
S21
LOG
10 dB/
SWR(S11 & S22)
1 Jun 2012 11:49:07
1: 0. 0000 dB
0. 000 000 MHz
REF -17.1 dB
CH1 Markers
REF=1
2: -56 . 360 dB
125 . 000 MHz
PRm
1
SPAN 150. 000 000 MHz
CH1
CH3
S11
S22
SWR
SWR
10 /
10 /
1 Jun 2012 11:48:14
1: 2. 2821
125 . 000 000 MHz
2: 3. 7770
125 . 000 000 MHz
REF 0
REF 0
PRm
3: -54 . 369 dB
250 . 000 MHz
4: -54 . 286 dB
375 . 000 MHz
5: -51 . 226 dB
500 . 000 MHz
Cor
1
2
3
5
4
2
START
. 010 000 MHz
STOP 700 . 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 125 . 000 000 MHz
http://www.itf.co.kr
SPAN 150 . 000 000 MHz
[email protected]
2013. 03. 26
Rev 1.0
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