251908B

SAW Bandpass Filter 251908B
1. Features
z
IF bandpass filter
z
High attenuation
z
Single-ended operation
z
DIP Package
z
Maximum Storage Temperature Range : -40℃ ~ 85℃
z
Electrostatics Sensitive Device (ESD)
5.5max 6.0max
Package : D2012
Pin Configuration
1
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
12.7±0.2
2.5±0.2
7.6±0.2
0.45±0.05
ITF 05A001
251908B
20.3±0.5
12.7±0.5
2.5±0.2
2. Package Dimension
Input
5
Output
2, 4
Ground
3, 6
Case ground
Part No.
251908B
Rev. Date
2005-03-07
Rev.
NM5008-CS01
1/5
SAW Bandpass Filter 251908B
3. Specifications
Fo = 140.0 MHz
Terminating source impedance
: 50Ω and matching network
Terminating load impedance
: 50Ω and matching network
Minimum
Typical
Maximum
MHz
139.85
140.0
140.15
dB
-
27.0
28.0
1dB Bandwidth
MHz
-
19.1
-
3dB Bandwidth
MHz
19.4
19.55
-
10dB Bandwidth
MHz
-
20.2
20.3
40dB Bandwidth
MHz
21.1
21.3
Center Frequency
Insertion Loss
Amplitude Ripple (Fo +/- 9.375 MHz)
dB
-
0.8
1.2
Group Delay Variation (Fo +/- 9.375 MHz)
nsec
-
30
100
Absolute Delay
usec
-
3.2
-
Ultimate Rejection
dB
50
52
-
ppm/°C2
-
-23
-
Temperature Coefficient of Frequency
Notes :
1)
All specifications are based on the matching schematic shown below
2)
All specifications are measured by Agilent Network analyzer and full 2 port calibration at room temperature
3)
All attenuation measurements are measured relative to insertion loss
I T F Co., Ltd.
102-901, Bucheon Technopark 364,
Samjeong-Dong, Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
Part No.
251908B
Rev. Date
2005-03-07
Rev.
NM5008-CS01
2/5
SAW Bandpass Filter 251908B
4. Matching Schematic
( Actual matching values may vary due to PCB layout and parasitics )
L1
Input
50Ω
L4
L2
Output
50Ω
L3
L1 = 82nH, L2 = 68 nH
L3 = 68nH, L4 = 68 nH
5. Marking Configuration
ITF1) 05A0012)
251908B3)
1) Manufacturer name
2) Lot Number
3) Part Number
I T F Co., Ltd.
102-901, Bucheon Technopark 364,
Samjeong-Dong, Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
Part No.
251908B
Rev. Date
2005-03-07
Rev.
NM5008-CS01
3/5
SAW Bandpass Filter 251908B
6. Typical Performance ( at +25℃ )
CH1
S21
LOG
10 dB/
5 Mar 2005 13:04:59
1: 0. 0000 dB
0. 000 000 MHz
REF -27.05 dB
CH1 Markers
1
Cor
2
BW:
21. 107424
MHz
cent : 139 . 974967
MHz
REF=1
Q: 6. 6316
1_loss : -27 . 192 dB
3
4
START 113 . 500 000 MHz
CH1
CH2
S21
S21
LOG
DEL
1 dB/
100 ns/
STOP 166 . 500 000 MHz
5 Mar 2005 13:08:29
1: 0. 0000 dB
0. 000 000 MHz
3: -5 . 5957 ns
18. 750 000 MHz
REF -27.05 dB
REF 3.193 us
CH1 Markers
BW:
Cor
19. 604835
MHz
cent : 139 . 985512
MHz
REF=1
Q: 7. 1404
1
1_loss : -27 . 131 dB
2
3
Smo
Cor
3
2
4
CH2 Markers
mean : 3. 2032 us
REF=2
s. dev : 4. 8163 ns
p-p : 25. 210 ns
CENTER 140 . 000 000 MHz
I T F Co., Ltd.
102-901, Bucheon Technopark 364,
Samjeong-Dong, Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
SPAN
23. 000 000 MHz
Part No.
251908B
Rev. Date
2005-03-07
Rev.
NM5008-CS01
4/5
SAW Bandpass Filter 251908B
CH1
CH2
S21
S21
LOG
LOG
1 dB/
1 dB/
5 Mar 2005 13:07:53
1: 0. 0000 dB
0. 000 000 MHz
3: . 04010 dB
18. 750 000 MHz
REF -27.05 dB
REF -27.39 dB
CH1 Markers
BW:
Cor
19. 198583
MHz
cent : 139 . 988173
MHz
CH1
S21
LOG
10 dB/
5 Mar 2005 13:12:17
1: 0. 0000 dB
0. 000 000 MHz
REF -27.16 dB
REF=1
CH1 Markers
2: -64 . 595 dB
140 . 000 MHz
Q: 7. 2916
1
3: -60 . 002 dB
280 . 000 MHz
1
1_loss : -27 . 128 dB
REF=1
2
3
4
3
2
Cor
CH2 Markers
REF=2
mean : -27 . 263 dB
s. dev : . 10730 dB
p-p : . 45230 dB
CENTER 140 . 000 000 MHz
CH1
CH2
S11
S22
SWR
SWR
5 /
5 /
SPAN
5 Mar 2005 13:11:18
1: 2. 0374
140 . 000 000 MHz
2: 3. 4299
140 . 000 000 MHz
REF 2.038
REF 3.431
3
2
23. 000 000 MHz
START
CH1
CH2
S11
S22
. 010 000 MHz
1 U FS
1 U FS
STOP 500 . 000 000 MHz
1: 24. 696
2: 47. 131
-3 . 4697
-63 . 705
5 Mar 2005 13:11:25
327 . 64 pF
140 . 000 000 MHz
17. 845 pF
140 . 000 000 MHz
Cor
Cor
1
1
Cor
Cor
2
2
START 113 . 500 000 MHz
STOP 166 . 500 000 MHz
I T F Co., Ltd.
102-901, Bucheon Technopark 364,
Samjeong-Dong, Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
CENTER 140 . 000 000 MHz
SPAN 53. 000 000 MHz
Part No.
251908B
Rev. Date
2005-03-07
Rev.
NM5008-CS01
5/5
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