ITF F2431

SAW Bandpass Filter 243.95MHz
Features
z
Narrow bandpass filter
z
High attenuation
z
Usable bandwidth 220kHz
z
Matched 50Ω single-ended operation
z
Ceramic Surface Mounted Device (SMD) Package
1.00±0.15
1.90±0.15
0.44
3.80±0.15
0.64±0.05
Package Dimensions
ITF
2431
3
6
1
0.44
5
5
2
4
4
3
1.27±0.05
2
6
1.40±0.15
3.80±0.15
1
Dimensions shown are nominal in millimeters
Pin Configuration
Body : Al2O3 Ceramic
Lid : Kovar, Ni Plated
Terminations : Au plating 0.3 ~ 1.0 um, Over a 1.27 ~ 8.89 um
Ni Plating
2
Input
5
Output
1, 3, 4, 6
Case ground
Maximum Ratings
Parameter
Unit
Minimum
Typical
Maximum
Operating Temperature Range
°C
-10
25
60
Storage Temperature Range
°C
-40
-
85
Power Handling Capability
dBm
-
-
-
Electrostatics Sensitive Device (ESD)
I T F Co., Ltd.
102-901, Bucheon Technopark 364,
Samjeong-Dong, Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
Part No.
F2431
Rev. Date
2004-11-01
Rev.
NS4001-AS02
1/7
SAW Bandpass Filter 243.95MHz
Specifications
Fc = 243.950MHz
Terminating source impedance
: 50Ω and matching network
Terminating load impedance
: 50Ω and matching network
Minimum
Typical
Maximum
MHz
-
243.950
-
Insertion Loss (Fc +/- 110 kHz)
dB
-
3.5
4.0
Amplitude Ripple (Fc +/- 110 kHz)
dB
-
0.8
1.5
Absolute Group Delay at Fc
usec
-
-
1.2
Group Delay Variation (Fc +/- 110 kHz)
nsec
-
20
-
-
1.5
-
dB
30
40
-
-
ppm/°C
-
-
-
Center Frequency ( Fc )
VSWR (Fc +/- 110 kHz)
Relative Attenuation
Fc ± 600 kHz
Fc ± 1.2 MHz
Temperature Coefficient of Frequency
Notes :
1) All specifications are based on the matching schematic shown below, measured by Agilent Network analyzer and
full 2 port calibration.
2) Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing
tolerances
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.
F2431
Rev. Date
2004-11-01
Rev.
NS4001-AS02
2/7
SAW Bandpass Filter 243.95MHz
Matching Schematic
( Actual matching values may vary due to PCB layout and parasitics )
Input
50Ω
C1
C2
L1
C1 = 4.3 pF,
Output
50Ω
L2
C2 =.4.7 pF,
L1, L2 = 68 nH
Marking Configuration
ITF1)
24312)
1) Manufacturer name
2) Marking Number
* Ink or Laser Marking available
I T F Co., Ltd.
102-901, Bucheon Technopark 364,
Samjeong-Dong, Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
Part No.
F2431
Rev. Date
2004-11-01
Rev.
NS4001-AS02
3/7
SAW Bandpass Filter 243.95MHz
Frequency Response
I T F Co., Ltd.
102-901, Bucheon Technopark 364,
Samjeong-Dong, Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
Part No.
F2431
Rev. Date
2004-11-01
Rev.
NS4001-AS02
4/7
SAW Bandpass Filter 243.95MHz
Input / Output VSWR Charts
Input / Output Smith Charts
I T F Co., Ltd.
102-901, Bucheon Technopark 364,
Samjeong-Dong, Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
Part No.
F2431
Rev. Date
2004-11-01
Rev.
NS4001-AS02
5/7
SAW Bandpass Filter 243.95MHz
Packing Specification
1. Reeling Quantity : 1000 pcs / reel
2. Taping Structure : The tape shall be wound around the reel in the direction shown below.
TOP COVER TAPE
REEL
CARRIER TAPE
Tape Specification
1. Leader part and vacant position specification
Vacant
150mm min.
Component
contained
Vacant
150mm min.
Leader part
250mm min.
END
START
Tape Running Direction
2. Tensile strength of carrier tape
4.4N/mm width
Direction of pull
Top cover tape
3. Top cover tape adhesion
0~15 degree
1) pull off angle : 0~15°
2) speed : 300mm/min
3) force : 20~70g
I T F Co., Ltd.
102-901, Bucheon Technopark 364,
Samjeong-Dong, Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
Carrier tape
Part No.
F2431
Rev. Date
2004-11-01
Rev.
NS4001-AS02
6/7
SAW Bandpass Filter 243.95MHz
Carrier Tape Dimensions [unit : mm]
A
4.30 ± 0.1
B
4.30 ± 0.1
C
7.25 ± 0.1
D
1.70 ± 0.1
E
12.00 ± 0.1
F
8.00 ± 0.1
Part Direction
Tape Running Direction
Reel Dimensions [unit : mm]
I T F Co., Ltd.
102-901, Bucheon Technopark 364,
Samjeong-Dong, Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
Part No.
F2431
Rev. Date
2004-11-01
Rev.
NS4001-AS02
7/7