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