251803B

140.0 MHz SAW Filter
Part Number 251803B
1. Features
Typical 1dB bandwidth of 17.8 MHz
High attenuation
Single Ended Operation
Dual In-line Package (DIP)
2. Electrical Specifications
Source and Load Impedance = 50Ω
Operating Temperature : -30℃
℃ ~ +80℃
℃
Minimum
Typical
Maximum
MHz
-
140.0
-
dB
-
30.5
32.0
1dB Bandwidth
MHz
17.65
17.81
-
3dB Bandwidth
MHz
-
18.02
-
40dB Bandwidth
MHz
-
18.85
19.0
dB
-
0.75
1.2
Group Delay Variation (fo ± 8.5 MHz)
nsec
-
40
80
Absolute Delay
usec
-
4.25
-
dB
48
53
-
ppm/℃
-
-18
-
Minimum
Typical
Maximum
Center Frequency (fo)
Insertion Loss
Amplitude Ripple (fo ± 8.5 MHz)
Ultimate Rejection
Temperature Coefficient of Frequency
Input POWER : +10dBm
Room Temperature : +25℃
℃
Insertion Loss
dB
-
30.5
32.0
Amplitude Ripple (fo ± 8.64 MHz)
dB
-
0.75
1.2
nsec
-
40
80
dBc
35
45
Group Delay Variation (fo ± 8.64 MHz)
Relative Attenuation
(Fo±8.5) ±1.0MHz
12.8±0.5
5.5max 6.0max
Matching Schematic
7.6±0.2
2.5±0.2
D3512 Package Dimension
1
5
Output
50Ω
L2
25.4±0.2
2.5±0.2
L1
0.45±0.05
ITF 13A001
251803B
140-17.8M
35.1±0.5
Input
50Ω
L1 = 27nH, L2 = 22nH
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
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. 04. 26
Rev 1.0
140.0 MHz SAW Filter
Part Number 251803B
3. Typical Performance ( at +25℃
℃)
1dB Bandwidth & Ripple
40dB Bandwidth
4 Sep 2012 14:42:29
4 Sep 2012 14:47:41
CH2
CH4
S21
S21
LOG
LOG
1 dB/
1 dB/
1 : 0 . 0000
3 : - . 02300
REF -29.89 dB
REF -30.65 dB
dB
dB
0 . 000
17 . 280
000
000
MHz
MHz
CH1
S21
LOG
10 dB/
REF -30.95 dB
1 : 0 . 0000
dB
0 . 000
000
MHz
*
CH2 Markers
REF=1
17 . 814788
MHz
BW:
:
140 . 062571
MHz
CH1 Markers
REF=1
18 . 847738
MHz
BW:
1
cent
Cor
cent
Q: 7 . 8622
:
140 . 060394
MHz
2
Q: 7 . 4312
1_ loss
: -30
. 527
dB
1_ loss
: -30
. 945
dB
1
2
Hld
3
4
3
2
CH4
Cor
mean
: -30
Markers
REF=2
. 402
dB
s . dev
: . 13840
dB
p-p
: . 76430
dB
3
4
Cor
2
4
CENTER
140 . 000
000
MHz
SPAN
20 . 000
000
CENTER
MHz
140 . 000
000
3dB Bandwidth & Group Delay
MHz
SPAN
S21
S21
LOG
DEL
1 dB/
100 ns/
REF -29.89 dB
REF 4.258 us
1 : 0 . 0000
3 : 6 . 0118
dB
ns
000
MHz
50dB Bandwidth
4 Sep 2012 14:48:10
CH2
CH4
60 . 000
4 Sep 2012 14:43:42
0 . 000
17 . 280
000
000
MHz
MHz
CH1
CH3
S21
S21
LOG
LOG
10 dB/
10 dB/
REF -30.95 dB
REF -30.95 dB
2 : 0 . 0000
2 : 0 . 0000
dB
dB
0 . 000
0 . 000
000
000
MHz
MHz
*
CH2 Markers
REF=1
18 . 004440
MHz
BW:
cent
:
140 . 065380
MHz
CH1
Markers
REF=2
1 : - . 52920
dB
8 . 50000
MHz
2
Cor
2
3 : -58
Q: 7 . 7795
. 938
-1 . 00000
dB
MHz
1
1_ loss
: -30
. 550
dB
C2
1
2
Hld
Hld
3
CH4
2
Cor
mean
3
Smo
Markers
REF=2
: 4 . 2556
us
s . dev
4
: 7 . 7440
ns
p-p
: 47 . 149
ns
CH3 Markers
REF=2
1 : - . 27640
dB
-8 . 50000
MHz
3
3 : -42 . 859
dB
1 . 00000
MHz
Cor
3
2
4
CENTER
140 . 000
000
MHz
SPAN
20 . 000
000
MHz
CENTER
140 . 000
000
Wide band Properties
MHz
SPAN
S21
LOG
10 dB/
REF -33.28 dB
1 : -33
. 181
dB
000
MHz
SWR(S11 & S22)
4 Sep 2012 14:51:10
CH1
60 . 000
4 Sep 2012 14:44:39
140 . 000
000
MHz
CH1
CH3
S11
S22
SWR
SWR
1 /
1 /
REF 1.935
REF 2.26
1 : 1 . 9349
2 : 2 . 2605
140 . 000
140 . 000
000
000
MHz
MHz
*
MARKER 1
140 MHz
Cor
1
C2
1
Hld
Hld
2
START
. 010
000
MHz
STOP
500 . 000
I T F Co., Ltd.
102-901, Bucheon Technopark 364, Samjeong-Dong,
Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
000
MHz
Tel: 82-32-621-1213
Fax: 82-32-621-1218
CENTER
140 . 000
000
MHz
http://www.itf.co.kr
SPAN
[email protected]
60 . 000
000
MHz
2013. 04. 26
Rev 1.0
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