255.0 MHz SAW Filter
Part Number
262952B
1. Features
Typical 1dB bandwidth of 29.4 MHz
High attenuation
Single Ended Operation
Surface Mounted Package (SMD)
2. Electrical Specifications
Source and Load Impedance = 50
Operating Temperature : -20℃ ~ +70℃
℃
℃
Center Frequency (fo)
Insertion Loss
1dB Bandwidth
3dB Bandwidth
40dB Bandwidth
Amplitude Ripple (fo ± 14.32 MHz)
Group Delay Variation (fo ± 14.32 MHz)
Absolute Delay
Ultimate Rejection
Temperature Coefficient of Frequency
MHz
dB
MHz
MHz
MHz
dB
nsec
usec
dB
ppm/℃
℃
Minimum
-
-
29.25
-
-
-
-
-
45
-
Typical
255.0
31.0
29.41
29.8
31.26
0.65
30
2.66
48
-18
Maximum
-
32.5
-
-
31.4
1.2
80
-
-
-
Room Temperature : +25℃
℃
Insertion Loss
Amplitude Ripple (fo ± 14.53 MHz)
Group Delay Variation (fo ± 14.53 MHz)
MHz
dB
nsec
Minimum
-
-
-
Typical
31.0
0.65
30
Maximum
32.5
1.2
80
S2098 Package Dimension
2.30±0.1
Matching Schematic
20.00±0.2
7.62±0.1
10
9
8
7
6
6
7
8
9
10
18nH
Input
50
Ω
10
5
18nH
Output
50
Ω
ITF 11A001
262952B
。
255-29.4M
1
2
3
4
5
1.02±0.1
9.80±0.2
36pF
24pF
5
4
3
2
1
1.91±0.1
1.56±0.2
Pin Configuration
Dimensions shown are nominal in millimeters
Body : Al
2
O
3
Lid : Kovar, Ni Plated
Termination : Au plating 0.3 ~ 1.0um, over a 1.27 ~ 8.89um Ni Plating
Input
Output
10
5
Ground
Others
1,6
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
ITF [ INTEGRATED TECHNOLOGY FUTURE ]
