125.0 MHz SAW Filter
Part Number
253201B
1. Features
Typical 1dB bandwidth of 31.9 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 ± 15.5 MHz)
Group Delay Variation (fo ± 15.5 MHz)
Absolute Delay
Ultimate Rejection
Temperature Coefficient of Frequency
MHz
dB
MHz
MHz
MHz
dB
nsec
usec
dB
ppm/℃
℃
Minimum
-
-
31.7
-
-
-
-
-
50
-
Typical
125.0
23.5
31.9
32.7
36.2
0.5
20
0.98
52
-72
Maximum
-
25.0
-
-
36.3
1.0
40
-
-
-
D2012 Package Dimension
Matching Schematic
12.7±0.5
5.5max 6.0max
7.6±0.2
2.5±0.2
68nH
Input
50
Ω
82nH
4.3pF
Output
50
Ω
ITF 11A001
253201B
125-31.9M
0.45±0.05
20.3±0.5
2.5±0.2
12.7±0.2
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
2011. 01. 24
Rev 1.0
125.0 MHz SAW Filter
Part Number
253201B
3. Typical Performance ( at +25℃ )
℃
1dB Bandwidth & Ripple
CH1 S21
CH2 S21
LOG
LOG
1 dB/ REF -23.06 dB
1 dB/ REF -23.52 dB
14 Dec 2009 00:47:36
1: 0. 0000 dB
0. 000 000 MHz
3: . 16230 dB
31. 000 000 MHz
CH1 S21
CH2 S21
3dB Bandwidth & Group Delay
LOG
DEL
1 dB/ REF -23.06 dB
50 ns/ REF 971.8 ns
14 Dec 2009 00:48:01
1: 0. 0000 dB
0. 000 000 MHz
3: 4. 7933 ns
31. 000 000 MHz
CH1 Markers
REF=1
BW 31. 841457 MHz
:
Cor
cent : 125. 059614 MHz
Q 3. 9276
:
1_
loss : -23 . 318 dB
1
2
1
2
Cor
CH1 Markers
REF=1
BW 32. 678196 MHz
:
cent : 125. 041972 MHz
Q 3. 8265
:
1_
loss : -23 . 339 dB
3
4
3
CH2 Markers
REF=2
mean:-23 . 372 dB
s. dev : . 10730 dB
p-p : . 48740 dB
Smo
Cor
3
2
3
CH2 Markers
REF=2
mean: 988. 06 ns
4
s. dev : 3. 4202 ns
p-p : 18. 030 ns
2
Cor
CENTER125. 000 000 MHz
SPAN 38. 000 000 MHz
CENTER125. 000 000 MHz
SPAN 38. 000 000 MHz
40dB Bandwidth
CH1 S21
LOG
10 dB/ REF -23.33 dB
14 Dec 2009 00:46:08
1: 0. 0000 dB
0. 000 000 MHz
CH1 S21
LOG
50dB Bandwidth
10 dB/ REF -23.33 dB
14 Dec 2009 00:46:21
1: 0. 0000 dB
0. 000 000 MHz
1
Cor
2
CH1 Markers
REF=1
BW 36. 195662 MHz
:
Cor
cent : 124. 985007 MHz
Q 3. 4530
:
1_
loss : -23 . 256 dB
1
2
CH1 Markers
REF=1
BW 36. 529461 MHz
:
cent : 124. 975735 MHz
Q 3. 4212
:
1_
loss : -23 . 256 dB
3
4
3
4
CENTER125. 000 000 MHz
SPAN 92. 000 000 MHz
CENTER125. 000 000 MHz
SPAN 92. 000 000 MHz
Wideband properties
CH1 S21
LOG
10 dB/ REF -22.4 dB
14 Dec 2009 00:49:16
1: 0. 0000 dB
0. 000 000 MHz
CH1 S11
CH2 S22
SWR
SWR
20 /
20 /
SWR(S11 & S22)
REF 7.24
REF 6.312
14 Dec 2009 00:48:36
1: 7. 2195
125. 000 000 MHz
2: 6. 3271
125. 000 000 MHz
CH1 Markers
REF=1
2:-59 . 875 dB
125. 000 MHz
3:-56 . 035 dB
250. 000 MHz
Cor
1
1
Cor
2
2
3
START . 010 000 MHz
STOP 500. 000 000 MHz
CENTER125. 000 000 MHz
SPAN 92. 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
2011. 01. 24
Rev 1.0
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