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SAW Bandpass Filter 203648B  
1. Features  
z
z
z
z
z
z
IF bandpass filter  
High attenuation  
Single-ended operation  
DIP Package  
Maximum Storage Temperature Range : -40℃ ~ 85℃  
Electrostatics Sensitive Device (ESD)  
2. Package Dimension  
12.8±0.5  
5.5max 6.0max  
7.6±0.2  
Package : D3512  
Pin Configuration  
1
Input  
Output  
4
Dimensions shown are nominal in millimeters  
Base : Fe(SPCC), Au plating over Ni plated  
Cap : Cu & Cr Alloy, Ni Plated  
Termination : Kovar, Au Plated  
2, 5  
3, 6  
Ground  
Case ground  
I T F Co., Ltd.  
102-901, Bucheon Technopark 364,  
Samjeong-Dong, Ojeong-Gu, Bucheon-City,  
Gyounggi-Do, Korea 421-809  
Part No.  
203648B  
Rev. Date  
2004-03-16  
1/5  
Rev.  
NW3027-CS02  
SAW Bandpass Filter 203648B  
3. Specifications  
Fo = 139.5 MHz  
Terminating source impedance : 50Ω and matching network  
Terminating load impedance  
: 50Ω and matching network  
Operating temperature range : -10℃ ~ +60℃  
Minimum  
Typical  
139.5  
21.2  
2.38  
2.5  
Maximum  
Center Frequency  
MHz  
dB  
139.45  
139.55  
Insertion Loss  
-
-
24.5  
1dB Bandwidth  
MHz  
MHz  
MHz  
dB  
-
-
3dB Bandwidth  
2.4  
-
40dB Bandwidth  
3.08  
0.8  
3.1  
1.0  
250  
-
Amplitude Ripple (Fo +/- 1.1 MHz)  
Group Delay Variation (Fo +/- 1.1 MHz)  
Absolute Delay  
-
nsec  
usec  
dB  
-
150  
-
4.56  
48  
Ultimate Rejection  
45  
-
-
Temperature Coefficient of Frequency  
ppm/°C2  
-0.03  
-
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  
3) Electrical margin has been built into the design to account for the variations due to temperature drift and  
manufacturing tolerances  
4) All attenuation measurements are measured relative to insertion loss  
I T F Co., Ltd.  
Part No.  
Rev. Date  
Rev.  
203648B  
102-901, Bucheon Technopark 364,  
Samjeong-Dong, Ojeong-Gu, Bucheon-City,  
Gyounggi-Do, Korea 421-809  
2004-03-16  
2/5  
NW3027-CS02  
SAW Bandpass Filter 203648B  
4. Matching Schematic  
( Actual matching values may vary due to PCB layout and parasitics )  
L2  
L3  
Input  
50Ω  
Output  
50Ω  
L1  
L4  
L1 = L4 = 47 nH  
L2 = L3 =22 nH  
5. Marking Configuration  
ITF1) 04A0012)  
203648B3)  
1) Manufacturer name  
2) Lot Number  
3) Part Number  
I T F Co., Ltd.  
Part No.  
Rev. Date  
Rev.  
203648B  
102-901, Bucheon Technopark 364,  
Samjeong-Dong, Ojeong-Gu, Bucheon-City,  
Gyounggi-Do, Korea 421-809  
2004-03-16  
3/5  
NW3027-CS02  
SAW Bandpass Filter 203648B  
6. Typical Performance ( at +25℃ )  
29 Oct 2003 08:23:47  
1_: 0  
CH1  
S
log MAG  
10 dB/  
REF -24.98 dB  
dB  
21  
203648B  
0.000 000 MHz  
REF=1  
PRm  
Cor  
BW: 3.073 712 MHz  
cent: 139.501615 MHz  
1
2
Q: 45.385  
1_ loss: -24.984 dB  
3
4
CH1 CENTER 139.500 000 MHz  
SPAN 8.000 000 MHz  
29 Oct 2003 08:25:36  
1_  
CH1  
CH2  
S
S
log MAG  
delay  
1 dB/  
200 ns/  
REF -24.49 dB  
REF 4.503 us  
0
dB  
21  
21  
3_:-8.5829 ns  
203648B  
203648B  
0.000 000 MHz  
PRm  
Cor  
REF=1  
BW: 2.521 115 MHz  
cent: 139.495634 MHz  
Q: 55.331  
1_ loss: -24.979 dB  
1
2
3
2.200 000 MHz  
REF=2  
2
mean: 4.568 5 us  
PRm  
Cor  
1
s.dev: 23.34 ns  
4
3
p-p: 114.25 ns  
Smo  
1
2
CENTER 139.500 000 MHz  
SPAN 4.000 000 MHz  
I T F Co., Ltd.  
Part No.  
Rev. Date  
Rev.  
203648B  
102-901, Bucheon Technopark 364,  
Samjeong-Dong, Ojeong-Gu, Bucheon-City,  
Gyounggi-Do, Korea 421-809  
2004-03-16  
4/5  
NW3027-CS02  
SAW Bandpass Filter 203648B  
29 Oct 2003 08:23:12  
29 Oct 2003 08:26:15  
REF -24.5 dB 1_: 0  
REF -24.5 dB 3_ .4564 dB  
CH1  
S
log MAG  
10 dB/  
REF -24.98 dB  
1_: 0  
dB  
CH1  
CH2  
S
S
log MAG  
log MAG  
1 dB/  
1 dB/  
dB  
21  
21  
21  
203648B  
0.000 000 MHz  
203648B  
203648B  
0.000 000 MHz  
REF=1  
PRm  
Cor  
PRm  
Cor  
REF=1  
BW: 2.995 142 MHz  
cent: 139.493766 MHz  
1
2
BW: 2.400 499 MHz  
cent: 139.500965 MHz  
Q: 58.113  
1_ loss: -24.971 dB  
Q: 46.573  
1_ loss: -24.988 dB  
1
2
3
3
4
2.200 000 MHz  
3
4
REF=2  
1
2
mean:-24.816 dB  
s.dev: .1979 dB  
p-p: .7610 dB  
PRm  
Cor  
Smo  
1
2
CH1 CENTER 139.500 000 MHz  
SPAN 8.000 000 MHz  
CENTER 139.500 000 MHz  
SPAN 4.000 000 MHz  
29 Oct 2003 08:30:41  
29 Oct 2003 08:27:15  
CH1  
S
log MAG  
10 dB/  
REF -25.46 dB  
1_: 0  
dB  
CH1  
CH2  
S
S
1 U FS  
1 U FS  
1_ 25.603  
2_: 6.3213  
-30.68  
-22.197  
37.187 pF  
51.398 pF  
21  
11  
22  
203648B  
0.000 000 MHz  
*
203648B  
203648B  
139.500 000 MHz  
REF=1  
PRm  
PRm  
Cor  
2_:-24.127 dB  
87.190 MHz  
1
3_:-33.693 dB  
116.212 MHz  
2
139.500 000 MHz  
3
PRm  
Cor  
1
2
START .010 000 MHz  
STOP 400.000 000 MHz  
CENTER 139.500 000 MHz  
SPAN 8.000 000 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.  
203648B  
2004-03-16  
5/5  
NW3027-CS02