251951B

SAW Bandpass Filter 251951B
1. Features
z
IF Bandpass Filter
z
High Selection Filter
z
Single-Ended Operation
z
Ceramic Surface Mount Device (SMD) Package
z
Maximum Storage Temperature Range : -40℃ ~ 85℃
z
Electrostatics Sensitive Device (ESD)
2. Package Dimensions
13.30±0.2
8
7.62±0.1
7
1
2
3
8
9
10
11
6
6
ITF04A001
251951B
12
7
1.50±0.1
5
5
4
12
2.54±0.1
11
9
1.61±0.2
6.50±0.2
10
4
3
2
2.54±0.1
1
0.80±0.1
Pad Configuration
Package : S1365
11
Input
5
Output
6, 12
Ground
Dimensions shown are nominal in millimeters
Other
Body : Al2O3 Ceramic
Lid : Kovar, Ni Plated
Terminations : Au plating 0.3 ~ 1.0 um, Over a 1.27 ~ 8.89 um Ni Plating
I T F Co., Ltd.
102-901, Bucheon Technopark 364,
Samjeong-Dong, Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
Case ground
Part No.
251951B
Rev. Date
2004-05-24
Rev.
NM3025-CS01
1/5
SAW Bandpass Filter 251951B
3. Specifications
Fo = 155.0 MHz
Terminating source impedance
: 50Ω and matching network
Terminating load impedance
: 50Ω and matching network
Minimum
Typical
Maximum
MHz
154.9
155.0
155.1
dB
-
23.0
25.0
1dB Bandwidth
MHz
19.1
19.25
-
3dB Bandwidth
MHz
19.5
19.75
-
40dB Bandwidth
MHz
-
21.55
21.7
dB
-
0.7
1.0
Group Delay Variation (Fo +/- 9.375 MHz)
nsec
-
30
100
Absolute Delay
usec
-
1.51
-
Ultimate Rejection
dB
45
50
-
ppm/°C
-
-72
-
Center Frequency
Insertion Loss
Amplitude Ripple (Fo +/- 9.375 MHz)
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.
251951B
Rev. Date
2004-05-24
Rev.
NM3025-CS01
2/5
SAW Bandpass Filter 251951B
4. Matching Schematic
( Actual matching values may vary due to PCB layout and parasitics )
L1
Input
50Ω
L2
C1
Output
50Ω
C2
L1 = L2 = 33 nH
C1 = C2 = 22 pF
5. Marking Configuration
ITF1) 04A0012)
251951B3)
4)
1) Manufacturer name
2) Lot Number
3) Part Number
4) Pad Number 1 Index
I T F Co., Ltd.
102-901, Bucheon Technopark 364,
Samjeong-Dong, Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
Part No.
251951B
Rev. Date
2004-05-24
Rev.
NM3025-CS01
3/5
SAW Bandpass Filter 251951B
6. Typical Performance ( at +25℃ )
CH1
S21
LOG
10 dB/
24 May 2004 10:26:31
1: 0. 0000 dB
0. 000 000 MHz
REF -22.03 dB
CH1 Markers
1
Cor
2
BW:
REF=1
21. 536230
MHz
: 154 . 955739
MHz
cent
Q: 7. 1951
1_loss : -21 . 999 dB
3
4
CENTER 155 . 000 000 MHz
CH1
CH2
S21
S21
LOG
DEL
1 dB/
100 ns/
SPAN
54. 000 000 MHz
24 May 2004 10:36:50
1: 0. 0000 dB
0. 000 000 MHz
3: -10 . 880 ns
18. 750 000 MHz
REF -21.83 dB
REF 1.502 us
CH1 Markers
BW:
Cor
19. 716714
MHz
: 154 . 988629
MHz
REF=1
cent
Q: 7. 8608
1
1_loss : -22 . 007 dB
2
3
Smo
Cor
3
CH2 Markers
2
4REF=2
mean : 1. 5096 us
s. dev : 5. 9164 ns
p-p : 31. 380 ns
CENTER 155 . 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.
251951B
Rev. Date
2004-05-24
Rev.
NM3025-CS01
4/5
SAW Bandpass Filter 251951B
CH1
CH2
S21
S21
LOG
LOG
1 dB/
1 dB/
24 May 2004 10:37:22
1: 0. 0000 dB
0. 000 000 MHz
3: . 21430 dB
18. 750 000 MHz
REF -21.83 dB
REF -22.11 dB
CH1 Markers
BW:
Cor
19. 243658
MHz
: 155 . 005841
MHz
CH1
S21
LOG
10 dB/
24 May 2004 10:42:28
1: -21 . 753 dB
155 . 000 000 MHz
REF -21.74 dB
REF=1
cent
Q: 8. 0549
1
1
1_loss : -22 . 005 dB
2
4
3
3
CH2 Markers
2
Cor
mean : -22 . 024 dB
REF=2
s. dev : . 11690 dB
p-p : . 59040 dB
CENTER 155 . 000 000 MHz
SPAN
23. 000 000 MHz
START
CH1
CH2
S11
S22
SWR
SWR
5 /
5 /
24 May 2004 10:39:57
1: 6. 6499
155 . 000 000 MHz
2: 5. 3638
155 . 000 000 MHz
REF 6.651
REF 5.367
Cor
CH1
CH2
S11
S22
. 010 000 MHz
1 U FS
1 U FS
STOP 500 . 000 000 MHz
1: 7. 5508
2: 9. 3608
-1 . 1726
-2 . 7388
24 May 2004 10:40:05
875 . 66 pF
155 . 000 000 MHz
374 . 92 pF
155 . 000 000 MHz
Cor
1
1
Cor
2
CENTER 155 . 000 000 MHz
2
Cor
SPAN
54. 000 000 MHz
I T F Co., Ltd.
102-901, Bucheon Technopark 364,
Samjeong-Dong, Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
CENTER 155 . 000 000 MHz
SPAN
Part No.
251951B
Rev. Date
2004-05-24
Rev.
NM3025-CS01
54. 000 000 MHz
5/5
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