279.9
MHz SAW Filter
Project name
262906B
1. Features
Typical 1dB bandwidth of 29.4 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±14.45MHz)
Group Delay Variation (Fo±14.45MHz)
Absolute Delay
Ultimate Rejection
Maximum input Power
Temperature Coefficient of Frequency
MHz
dB
MHz
MHz
MHz
dB
nsec
usec
dB
dBm
ppm/℃
℃
Minimum
-
-
29.20
-
-
-
-
-
48
-
Typical
279.9
31.5
29.40
29.69
30.94
0.65
50
2.89
53
-
-18
Maximum
-
33.0
-
-
31.05
1.2
100
-
-
10
-
-
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
262906B
279.9-29.4M
C1
0.45±0.05
2.5±0.2
12.7±0.2
C2
20.3±0.5
L1 = L2 = 12nH, C1 = C2 = 27pF
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. 03. 27
Rev 1.0
279.9
MHz SAW Filter
Project name
262906B
3. Typical Performance ( at +25℃ )
℃
1dB Bandwidth & Ripple
CH1 S21
CH2 S21
LOG
LOG
1 dB/
1 dB/
REF -31.14 dB
REF -31.72 dB
5 Jul 2012 17:35:13
1: 0. 0000 dB
0. 000 000 MHz
2:- . 18900 dB
-28 . 900 000 MHz
CH1 S21
LOG
10 dB/
40dB Bandwidth
REF -31.5 dB
5 Jul 2012 17:32:33
1: 0. 0000 dB
0. 000 000 MHz
CH1 Markers
REF=1
BW 29. 409083 MHz
:
Cor
cent : 280. 024736 MHz
Q: 9. 5217
1_loss : -31 . 520 dB
1
2
C
1
2
CH1 Markers
REF=1
BW 30. 943198 MHz
:
cent : 280. 026776 MHz
Q: 9. 0497
1_loss : -31 . 709 dB
3
2
4
Cor
3
CH2 Markers
REF=3
mean:-31 . 404 dB
s. dev : . 11150 dB
p-p : . 66290 dB
3
4
CENTER 279. 900 000 MHz
SPAN 35. 000 000 MHz
CENTER 279. 900 000 MHz
SPAN 100. 000 000 MHz
3dB Bandwidth & Group Delay
CH1 S21
CH2 S21
LOG
DEL
1 dB/
50 ns/
REF -31.14 dB
REF 2.92 us
5 Jul 2012 17:35:29
1: 0. 0000 dB
0. 000 000 MHz
2:-17 . 949 ns
-28 . 900 000 MHz
CH1 S21
LOG
10 dB/
50dB Bandwidth
REF -31.5 dB
5 Jul 2012 17:32:44
1: 0. 0000 dB
0. 000 000 MHz
CH1 Markers
REF=1
BW 29. 694839 MHz
:
Cor
cent : 280. 027344 MHz
Q: 9. 4302
1_loss : -31 . 520 dB
1
2
C
1
2
CH1 Markers
REF=1
BW 31. 179723 MHz
:
cent : 280. 034242 MHz
Q: 8. 9813
1_loss : -31 . 709 dB
2
Smo
Cor
3
3
CH2 Markers
REF=3
mean: 2. 8937 us
4
s. dev : 7. 2283 ns
p-p : 38. 888 ns
3
4
CENTER 279. 900 000 MHz
SPAN 35. 000 000 MHz
CENTER 279. 900 000 MHz
SPAN 100. 000 000 MHz
Wide band Properties
CH1 S21
LOG
10 dB/
REF -33.91 dB
5 Jul 2012 17:37:39
1: 0. 0000 dB
0. 000 000 MHz
CH1 S11
CH2 S22
SWR
SWR
10 /
10 /
SWR(S11 & S22)
REF 1.282
REF 1.828
5 Jul 2012 17:36:35
1: 1. 2813
280. 000 000 MHz
2: 1. 8283
279. 900 000 MHz
CH1 Markers
REF=1
2:-54 . 241 dB
280. 000 MHz
3:-50 . 967 dB
560. 000 MHz
Cor
1
1
Cor
2
3
2
START . 010 000 MHz
STOP1 200. 000 000 MHz
CENTER 279. 900 000 MHz
SPAN 100. 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
2013. 03. 27
Rev 1.0
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