261802B

305.0 MHz SAW Filter
Part Number 261802B
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 = 50Ω
Room Temperature : +25℃
℃
Minimum
Typical
Maximum
MHz
-
305.0
-
dB
-
25.5
27.0
1dB Bandwidth
MHz
18.4
18.52
-
3dB Bandwidth
MHz
-
18.96
-
40dB Bandwidth
MHz
-
20.91
21.1
dB
-
0.6
1.2
Group Delay Variation (Fo±9.0MHz)
nsec
-
35
70
Absolute Delay
usec
-
2.06
-
dB
45
52
-
ppm/℃
℃
-
-18
-
Center Frequency (fo)
Insertion Loss
Amplitude Ripple (Fo±9.0MHz)
Ultimate Rejection
Temperature Coefficient of Frequency
5.5max 6.0max
5
1
L1
Input
50Ω
L2
C1
Output
50Ω
C2
12.7±0.2
2.5±0.2
7.6±0.2
0.45±0.05
ITF 13A001
261802B
305-18.5M
20.3±0.5
12.7±0.5
Matching Schematic
2.5±0.2
D2012 Package Dimension
L1 = 6.8nH , L2 = 6.8nH, C1 = 27pF, C2 = 20pF
Dimensions shown are nominal in millimeters
Pin Configuration
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]
2013. 03. 27
Rev 1.0
305.0 MHz SAW Filter
Part Number 261802B
3. Typical Performance ( at +25℃
℃)
1dB Bandwidth & Ripple
CH1 S21
CH2 S21
LOG
LOG
40dB Bandwidth
26 Mar 2012 07:57:53
1: 0. 0000 dB
0. 000 000 MHz
3:-. 22810 dB
18. 000 000 MHz
1 dB/ REF -24.94 dB
1 dB/ REF -25.44 dB
CH1 Markers
REF=1
BW: 18. 524478
MHz
PRm
CH1 S21
LOG
26 Mar 2012 07:56:37
1: 0. 0000 dB
0. 000 000 MHz
10 dB/ REF -25.53 dB
*
PRm
CH1 Markers
REF=1
BW: 20. 913929
MHz
1
cent : 304. 932253 MHz
Q: 16. 461
cent : 304. 876657 MHz
Q: 14. 578
2
1_loss : -25 . 404 dB
Cor
1_loss : -25 . 532 dB
Cor
1
2
3
4
3
PRm
2
CH2 Markers
mean:-25REF=2
. 262 dB
3
4
s. dev : . 10860 dB
p-p : . 55940 dB
Cor
CENTER 305. 000 000 MHz
SPAN 21. 000 000 MHz
CENTER 305. 000 000 MHz
3dB Bandwidth & Group Delay
CH1 S21
CH2 S21
LOG
DEL
26 Mar 2012 07:58:16
1: 0. 0000 dB
0. 000 000 MHz
3:-13 . 007 ns
18. 000 000 MHz
1 dB/ REF -24.94 dB
50 ns/ REF 2.046 us
CH1 Markers
REF=1
BW: 18. 963677
MHz
PRm
SPAN 60. 000 000 MHz
Smith Chart(S11&S22)
CH1 S11
CH2 S22
1: 40. 045
2: 36. 246
1 U FS
1 U FS
15. 174
36. 014
26 Mar 2012 07:59:55
7. 9180 nH
305. 000 000 MHz
18. 793 nH
305. 000 000 MHz
PRm
cent : 304. 917105 MHz
Q: 16. 079
1_loss : -25 . 409 dB
Cor
2
Cor
1
1
2
3
PRm
2
Smo
PRm
CH2 Markers
mean: 2.REF=2
0722 us
4
s. dev : 6. 5800 ns
3
p-p : 35. 313 ns
Cor
Cor
CENTER 305. 000 000 MHz
SPAN 21. 000 000 MHz
CENTER 305. 000 000 MHz
Wideband Properties
CH1 S21
LOG
10 dB/ REF -26.84 dB
SWR(S11 & S22)
26 Mar 2012 08:00:35
1: 0. 0000 dB
0. 000 000 MHz
CH1 Markers
REF=1
2:-62 . 875 dB
305. 000 MHz
PRm
SPAN 60. 000 000 MHz
CH1 S11
CH2 S22
SWR
SWR
1 /
1 /
26 Mar 2012 07:59:38
1: 1. 4964
305. 000 000 MHz
2: 2. 4042
305. 000 000 MHz
REF 1.497
REF 2.405
PRm
3:-55 . 424 dB
610. 000 MHz
1
Cor
1
PRm
2
Cor
3
2
START . 010 000 MHz
STOP1 000. 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 305. 000 000 MHz
http://www.itf.co.kr
SPAN 60. 000 000 MHz
[email protected]
2013. 03. 27
Rev 1.0
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