250528B

121.5 MHz SAW Filter
Part Number 250528B
1. Features

Typical 1dB bandwidth of 4.8 MHz

High attenuation

Single Ended Operation

Dual In-line Package (DIP)
2. Electrical Specifications
Source and Load Impedance = 50Ω
Room Temperature : +25℃
Minimum
Typical
Maximum
MHz
121.35
121.5
121.65
dB
-
24.5
26.5
1dB Bandwidth
MHz
4.6
4.8
-
3dB Bandwidth
MHz
-
5.0
-
40dB Bandwidth
MHz
-
5.9
6.2
dB
-
0.45
1.0
Group Delay Variation (fo ± 2.15 MHz)
nsec
-
100
250
Absolute Delay
usec
-
4.0
-
dB
45
52
-
ppm/℃
-
-72
-
Center Frequency (fo)
Insertion Loss
Amplitude Ripple (fo ± 2.15 MHz)
Ultimate Rejection
Temperature Coefficient of Frequency
* Input POWER : +10dBm
12.8±0.5
5.5max 6.0max
Matching Schematic
7.6±0.2
2.5±0.2
D3512 Package Dimension
C1
1
5
Output
50Ω
25.4±0.2
2.5±0.2
L2
C2
L1
0.45±0.05
ITF 15A001
250528B
121.5-4.8M
35.1±0.5
Input
50Ω
L1 = 27nH, C1 = 110pF, L2 = 22nH, C2 = 82pF
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]
2015. 03. 11
Rev 1.0
121.5 MHz SAW Filter
Part Number 250528B
3. Typical Performance ( at +25℃ )
1dB Bandwidth & Ripple
CH2
CH4
S21
S21
LOG
LOG
1 dB/
1 dB/
40dB Bandwidth
11 Mar 2015 10:07:10
1: 0. 0000 dB
0. 000 000 MHz
3: . 04060 dB
4. 300 000 MHz
REF -24 dB
REF -24 dB
CH1
S21
LOG
10 dB/
CH2 Markers
REF=1
4. 805993 MHz
BW:
cent : 121 . 527087
MHz
11 Mar 2015 10:06:28
1: 0. 0000 dB
0. 000 000 MHz
REF -24 dB
BW:
1
Cor
Q: 25 . 287
CH1 Markers
REF=1
5. 859610 MHz
cent : 121 . 521693
2
MHz
Q: 20 . 739
1_loss : -24 . 308 dB
1
1_loss : -24 . 300 dB
2
3
3
4
2
CH4 Markers
REF=2
mean : -24 . 264 dB
Cor
s. dev : . 08140
dB
p-p : . 39880
dB
4
3
Cor
CENTER 121 . 500 000 MHz
SPAN
6. 000 000 MHz
2
4
CENTER 121 . 500 000 MHz
3dB Bandwidth & Group Delay
CH2
CH4
S21
S21
LOG
DEL
1 dB/
200 ns/
20 . 000 000 MHz
Smith Chart(S11 & S22)
11 Mar 2015 10:06:55
1: 0. 0000 dB
0. 000 000 MHz
3: 22 . 465 ns
4. 300 000 MHz
REF -24 dB
REF 3.932 us
SPAN
CH1 S11
CH3 S22
1 U FS
1 U FS
1: 60. 477
2: 13. 084
11 Mar 2015 10:07:29
221. 27 pF
121. 504 000 MHz
7. 8422 nH
121. 500 000 MHz
-5 . 9199
5. 9868
CH2 Markers
REF=1
5. 007622 MHz
BW:
cent : 121 . 524567
MHz
Cor
Q: 24 . 268
1_loss : -24 . 311 dB
1
Cor
2
2
3
1
2
Cor
CH4 Markers
REF=2
mean : 43. 9953 us
3
Smo
s. dev : 19 . 849 4ns
p-p : 98 . 801 ns
Cor
CENTER 121 . 500 000 MHz
SPAN
6. 000 000 MHz
2
CENTER 121. 500 000 MHz
Wide band Properties
CH1
S21
LOG
10 dB/
REF -24 dB
SPAN 20. 000 000 MHz
SWR(S11 & S22)
11 Mar 2015 10:08:23
1: -26 . 971 dB
121 . 504 000 MHz
CH1
CH3
S11
S22
SWR
SWR
2 /
2 /
11 Mar 2015 10:07:52
1: 1. 2440
121 . 504 000 MHz
2: 3. 8805
121 . 500 000 MHz
REF 0
REF 0
Cor
1
Cor
1
2
START
. 010 000 MHz
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 121 . 500 000 MHz
http://www.itf.co.kr
SPAN
[email protected]
20 . 000 000 MHz
2015. 03. 11
Rev 1.0
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