251931B

158.5 MHz SAW Filter
Part Number 251931B
1. Features
Typical 1dB bandwidth of 18.8 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
-
158.5
-
dB
-
29.7
31.5
1dB Bandwidth
MHz
18.70
18.82
-
3dB Bandwidth
MHz
-
19.01
-
40dB Bandwidth
MHz
-
19.85
20.0
dB
-
0.65
1.2
Group Delay Variation (fo ± 9.0 MHz)
nsec
-
40
80
Absolute Delay
usec
-
4.28
-
dB
48
53
-
ppm/℃
-
-18
-
Minimum
Typical
Maximum
Center Frequency (fo)
Insertion Loss
Amplitude Ripple (fo ± 9.0 MHz)
Ultimate Rejection
Temperature Coefficient of Frequency
Input Power : +10dBm
Room Temperature : +25℃
℃
Insertion Loss
dB
-
29.7
31.5
Amplitude Ripple (fo ± 9.16 MHz)
dB
-
0.65
1.2
Group Delay Variation (fo ± 9.16 MHz)
nsec
-
40
80
Relative Attenuation
usec
-
2.14
-
(Fo±9.0)±1.0MHz
dB
35
45
-
12.8±0.5
5.5max 6.0max
Matching Schematic
7.6±0.2
2.5±0.2
D3512 Package Dimension
1
5
25.4±0.2
2.5±0.2
0.45±0.05
ITF 13A001
251931B
158.5-18.8M
35.1±0.5
Input
50Ω
Output
50Ω
L1
L2
L1 = 22nH, L2 = 18nH
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. 04. 26
Rev 1.0
158.5 MHz SAW Filter
Part Number 251931B
3. Typical Performance ( at +25℃
℃)
1dB Bandwidth & Ripple
40dB Bandwidth
4 Sep 2012 12:13:27
CH2
CH4
S21
S21
LOG
LOG
1 dB/
1 dB/
REF -29.4 dB
REF -30.07 dB
1 : 0 . 0000
3 : - . 23260
dB
dB
4 Sep 2012 12:10:15
0 . 000
18 . 320
000
000
CH1
MHz
MHz
S21
LOG
10 dB/
REF -30.12 dB
1 : 0 . 0000
dB
0 . 000
CH2 Markers
REF=1
18 . 818091
MHz
BW :
:
158 . 481987
MHz
MHz
CH1 Markers
REF=1
19 . 853405
MHz
BW :
1
cent
000
Cor
cent
Q: 8 . 4218
:
158 . 473765
MHz
2
Q: 7 . 9822
1_ loss
: -29
. 734
dB
1_ loss
1
: -30
. 118
dB
2
Hld
3
4
3
2
CH4
Cor
mean
: -29
Markers
REF=2
. 704
dB
s . dev
: . 10960
dB
p-p
: . 68720
dB
3
4
Cor
Hld
Hld
2
4
CENTER
158 . 500
000
MHz
SPAN
25 . 000
000
MHz
CENTER
158 . 500
3dB Bandwidth & Group Delay
000
MHz
SPAN
S21
S21
LOG
DEL
1 dB/
200 ns/
1 : 0 . 0000
3 : -6 . 5920
REF -29.4 dB
REF 4.277 us
dB
ns
000
MHz
Relative Attenuation
4 Sep 2012 12:13:48
CH2
CH4
70 . 000
4 Sep 2012 12:11:18
0 . 000
18 . 320
000
000
MHz
MHz
CH1
CH3
S21
S21
LOG
LOG
10 dB/
10 dB/
REF -30.12 dB
REF -30.12 dB
2 : 0 . 0000
2 : 0 . 0000
dB
dB
0 . 000
0 . 000
000
000
MHz
MHz
*
CH2 Markers
REF=1
19 . 012430
MHz
BW :
cent
:
158 . 487112
MHz
CH1
Markers
REF=2
1 : - . 12800
dB
9 . 00000
MHz
2
Cor
2
3 : -46
Q: 8 . 3360
. 667
-1 . 00000
dB
MHz
1
1_ loss
: -29
. 734
dB
1
C2
2
Hld
Hld
3
CH4
2
Cor
mean
4
3
Smo
Markers
REF=2
: 4 . 2895
us
s . dev
: 7 . 7840
ns
p-p
: 40 . 527
ns
CH3 Markers
REF=2
1 : . 20150
dB
-9 . 00000
MHz
3
3 : -54 . 212
dB
1 . 00000
MHz
3
Cor
Hld
Hld
2
4
CENTER
158 . 500
000
MHz
SPAN
25 . 000
000
MHz
CENTER
158 . 500
000
Wideband Properties
MHz
SPAN
S21
LOG
10 dB/
REF -32.64 dB
1 : -33
. 737
dB
000
MHz
SWR(S11 & S22)
4 Sep 2012 12:16:26
CH1
70 . 000
4 Sep 2012 12:12:05
158 . 500
000
MHz
CH1
CH3
S22
S11
SWR
SWR
1 /
1 /
REF 2.139
REF 1.67
1 : 2 . 1389
2 : 1 . 6698
158 . 500
158 . 500
000
000
MHz
MHz
*
Cor
1
C2
1
Hld
Hld
2
START
. 010
000
MHz
STOP
600 . 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
158 . 500
000
MHz
http://www.itf.co.kr
SPAN
[email protected]
70 . 000
000
MHz
2013. 04. 26
Rev 1.0
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