270255B

70 MHz SAW Filter
Part Number 270255B
1. Features

Typical 1dB bandwidth of 2.25 MHz

Low-Loss Filter

Single Ended Operation

Surface Mounted Package (SMD)
2. Electrical Specifications
Source and Load Impedance = 50Ω
Operating Temperature : -30℃ ~ +80℃
Minimum
Typical
Maximum
MHz
-
70.0
-
dB
-
12.0
14.0
1dB Bandwidth
MHz
-
2.25
-
3dB Bandwidth
MHz
2.5
2.9
-
40dB Bandwidth
MHz
-
5.3
5.6
dB
-
0.45
1.0
Group Delay Variation (fo ± 0.75 MHz)
nsec
-
60
100
Absolute Delay
usec
-
1.19
-
dB
43
48
-
ppm/℃
-
-18
-
Minimum
Typical
Maximum
Center Frequency (fo)
Insertion Loss
Amplitude Ripple (fo ± 0.75 MHz)
Ultimate Rejection
Temperature Coefficient of Frequency
Room Temperature : +25℃
Insertion Loss
dB
-
12.0
13.5
Amplitude Ripple (fo ± 0.85 MHz)
dB
-
0.45
1.0
nsec
-
60
100
Group Delay Variation (fo ± 0.85 MHz)
S1365 Package Dimension
13.30±0.2
12
8
7.62±0.1
7
ITF 13A001
270255B
. 70-2.2M
1
2
3
4
7
6
6
5
5
9
8
L2
I nput
50Ω
10
11
5
L3
Out put
50Ω
11
L1
1.50±0.1
2.54±0.1
11
9
1.61±0.2
6.50±0.2
10
Matching Schematic
L4
12
4
3
2
2.54±0.1
1
0.80±0.1
L1 = 82nH, L2 = 56nH, L3 = 39nH, L4 = 56nH
Pin Configuration
Dimensions shown are nominal in millimeters
Body : Al2O3
Lid : Kovar, Ni Plated
Termination : Au plating 0.3 ~ 1.0um, over a 1.27 ~ 8.89um Ni Plating
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
11
Ground
6, 12
Output
5
Others
Ground
http://www.itf.co.kr
[email protected]
2013. 04. 12
Rev 1.0
70 MHz SAW Filter
Part Number 270255B
3. Typical Performance ( at +25℃ )
1dB Bandwidth & Ripple
CH2
CH4
S21
S21
LOG
LOG
1 dB/
1 dB/
40dB Bandwidth
10 Apr 2013 11:19:30
1: 0. 0000 dB
0. 000 000 MHz
3: . 01840 dB
1. 700 000 MHz
REF -11.5 dB
REF -11.5 dB
BW:
cent :
CH1
S21
LOG
10 dB/
CH2 Markers
REF=1
2. 278718 MHz
70 . 010413
MHz
10 Apr 2013 11:19:01
1: 0. 0000 dB
0. 000 000 MHz
REF -11.5 dB
BW:
1
Cor
Q: 30 . 724
cent :
2
CH1 Markers
REF=1
5. 289461 MHz
70 . 039446
MHz
Q: 13 . 241
1_loss : -11 . 752 dB
1
1_loss : -11 . 712 dB
2
3
4
3
2
CH4 Markers
REF=2
mean : -11 . 722 dB
Cor
s. dev : . 09820
dB
p-p : . 43320
dB
3
4
Cor
CENTER
70 . 000 000 MHz
SPAN
3. 500 000 MHz
2
4
CENTER
70 . 000 000 MHz
3dB Bandwidth & Group Delay
CH2
CH4
S21
S21
LOG
DEL
1 dB/
150 ns/
BW:
cent :
15 . 000 000 MHz
Smith Chart(S11 & S22)
10 Apr 2013 11:19:19
1: 0. 0000 dB
0. 000 000 MHz
3: -22 . 032 ns
1. 700 000 MHz
REF -11.5 dB
REF 1.15 us
SPAN
CH1 S11
CH3 S22
1 U FS
1 U FS
1: 95. 344
2: 53. 168
9. 3281
-16 . 885
10 Apr 2013 11:19:41
21. 209 nH
70. 000 000 MHz
134. 66 pF
70. 000 000 MHz
CH2 Markers
REF=1
2. 898384 MHz
70 . 006972
MHz
Cor
Q: 24 . 154
1_loss : -11 . 751 dB
1
Cor
2
4
3
1
2
Cor
2
CH4 Markers
REF=2
mean :41. 1879 us
3
Smo
s. dev : 13 . 483 ns
p-p : 60 . 272 ns
Cor
2
CENTER
70 . 000 000 MHz
SPAN
3. 500 000 MHz
CENTER 70. 000 000 MHz
Wide band Properties
CH1
S21
LOG
10 dB/
SWR(S11 & S22)
10 Apr 2013 11:20:41
1: 0. 0000 dB
0. 000 000 MHz
REF -11.5 dB
1
SPAN 15. 000 000 MHz
CH1 Markers
REF=1
2: -25 . 270 dB
70 . 0000 MHz
CH1
CH3
S11
S22
SWR
SWR
1 /
1 /
10 Apr 2013 11:20:09
1: 1. 9321
70 . 000 000 MHz
2: 1. 3934
70 . 000 000 MHz
REF 0
REF 0
Cor
3: -40 . 394 dB
140 . 000 MHz
4: -67 . 641 dB
210 . 000 MHz
Cor
2
3
1
2
4
START
. 010 000 MHz
STOP 400 . 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
70 . 000 000 MHz
http://www.itf.co.kr
SPAN
[email protected]
15 . 000 000 MHz
2013. 04. 12
Rev 1.0
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