245.0
MHz SAW Filter
Project name
261806B
1. Features
Typical 1dB bandwidth of 18.5 MHz
High attenuation
Single Ended Operation
Dual In-line Package (DIP)
2. Electrical Specifications
Source and Load Impedance = 50
Room Temperature : +25℃
℃
Center Frequency (fo)
Insertion Loss
1dB Bandwidth
3dB Bandwidth
40dB Bandwidth
Amplitude Ripple (Fo±9.0075MHz)
Group Delay Variation (Fo±9.0075MHz)
Absolute Delay
Ultimate Rejection
Temperature Coefficient of Frequency
Substrate Material
Input Power : +10dBm
MHz
dB
MHz
MHz
MHz
dB
nsec
usec
dB
ppm/℃
-
Minimum
-
-
18.40
-
-
-
-
-
47
-
Typical
245.0
27.0
18.55
18.92
20.45
0.65
40
2.26
53
-18
112-LT
Maximum
-
28.5
-
-
20.60
1.2
100
-
-
-
D2012 Package Dimension
Matching Schematic
2.5±0.2
12.7±0.5
5.5max 6.0max
7.6±0.2
Input
50
Ω
L1
1
5
L2
Output
50
Ω
ITF 13A001
261806B
245-18.5M
C1
0.45±0.05
2.5±0.2
12.7±0.2
C2
20.3±0.5
L1 = L2 = 15nH, C1 = C2=30pF
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
2013. 04.01
Rev 1.0
ITF [ INTEGRATED TECHNOLOGY FUTURE ]
