251803B Datasheet, PDF (1/2 Pages) Integrated Technology Future – 140.0 MHz SAW Filter

1. Features
Typical 1dB bandwidth of 17.8 MHz
High attenuation
Single Ended Operation
Dual In-line Package (DIP)
140.0 MHz SAW Filter
Part Number 251803B
2. Electrical Specifications
Operating Temperature : -30℃ ~ +80℃
Center Frequency (fo)
Insertion Loss
1dB Bandwidth
3dB Bandwidth
40dB Bandwidth
Amplitude Ripple (fo ± 8.5 MHz)
Group Delay Variation (fo ± 8.5 MHz)
Absolute Delay
Ultimate Rejection
Temperature Coefficient of Frequency
Input POWER : +10dBm
MHz
dB
MHz
MHz
MHz
dB
nsec
usec
dB
ppm/℃
Room Temperature : +25℃
Insertion Loss
dB
Amplitude Ripple (fo ± 8.64 MHz)
dB
Group Delay Variation (fo ± 8.64 MHz)
nsec
Relative Attenuation
(Fo±8.5) ±1.0MHz
dBc
Source and Load Impedance = 50Ω
Minimum
Typical
Maximum
-
140.0
-
-
30.5
32.0
17.65
17.81
-
-
18.02
-
-
18.85
19.0
-
0.75
1.2
-
40
80
-
4.25
-
48
53
-
-
-18
-
Minimum
-
-
-
Typical
30.5
0.75
40
Maximum
32.0
1.2
80
35
45
D3512 Package Dimension
12.8±0.5
5.5max 6.0max
7.6±0.2
Matching Schematic
Input
1
50Ω
L1
5
Output
50Ω
L2
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
Input
Output
L1 = 27nH, L2 = 22nH
Pin Configuration
1
Ground
5
Others
2,4
Ground
Tel: [phone]
Fax: [phone]
http://www.itf.co.kr [e-mail]
2013. 04. 26
Rev 1.0