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SAW Bandpass Filter 205301B  
1. Features  
z
z
z
z
z
z
IF Bandpass Filter  
Low-Loss Filter  
Single-Ended Operation  
Ceramic Surface Mount Device (SMD) Package  
Maximum Storage Temperature Range : -40℃ ~ 85℃  
Electrostatics Sensitive Device (ESD)  
2. Package Dimensions  
19.00±0.2  
7.62±0.1  
10  
9
8
7
6
6
5
9
10  
7
8
ITF04A001  
205301B  
R0.30  
1
2
3
4
5
4
3
2
1
1.02±0.1  
1.90±0.1  
Pad Configuration  
10  
5
Input  
Output  
Ground  
Package : S1965  
1, 6  
Other  
Dimensions shown are nominal in millimeters  
Case ground  
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  
Part No.  
205301B  
Rev. Date  
Rev.  
2004-03-18  
1/5  
NW3026-CS02  
SAW Bandpass Filter 205301B  
3. Specifications  
Fo = 71 MHz  
Terminating source impedance : 50Ω and matching network  
Terminating load impedance  
: 50Ω and matching network  
Operating Temperature Range : -10℃ ~ +60℃  
Minimum  
Typical  
71.0  
8.7  
Maximum  
Center Frequency  
MHz  
dB  
-
-
10.0  
-
Insertion Loss  
-
1dB Bandwidth  
MHz  
MHz  
MHz  
dB  
-
0.18  
0.3  
3dB Bandwidth  
0.25  
-
30dB Bandwidth  
-
-
0.8  
1.0  
1.5  
350  
-
Amplitude Ripple (Fo +/- 0.08 MHz)  
Group Delay Variation (Fo +/- 0.08 MHz)  
Absolute Delay  
1.0  
nsec  
usec  
dB  
-
200  
2.33  
35  
-
Ultimate Rejection  
30  
-
-
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.  
205301B  
102-901, Bucheon Technopark 364,  
Samjeong-Dong, Ojeong-Gu, Bucheon-City,  
Gyounggi-Do, Korea 421-809  
2004-03-18  
2/5  
NW3026-CS02  
SAW Bandpass Filter 205301B  
4. Matching Schematic  
( Actual matching values may vary due to PCB layout and parasitics )  
L2  
L3  
Input  
50Ω  
Output  
50Ω  
L1  
L4  
L1 = 82 nH, L2 = 150 nH  
L3 = 180 nH,  
L4 = 82 nH  
5. Marking Configuration  
ITF1) 04A0012)  
205301B3)  
4)  
1) Manufacturer name  
2) Lot Number  
3) Part Number  
4) Padumber 1 Index  
I T F Co., Ltd.  
Part No.  
205301B  
102-901, Bucheon Technopark 364,  
Samjeong-Dong, Ojeong-Gu, Bucheon-City,  
Gyounggi-Do, Korea 421-809  
Rev. Date  
Rev.  
2004-03-18  
3/5  
NW3026-CS02  
SAW Bandpass Filter 205301B  
6. Typical Performance ( at +25℃ )  
29 Oct 2003 08:43:34  
CH1  
S
log MAG  
10 dB/  
REF -7.876 dB  
1_: 0 dB  
21  
205301B  
0.000 000 MHz  
REF=1  
PRm  
Cor  
BW: .781 465 MHz  
cent: 71.003635 MHz  
Q: 90.86  
1
2
1_ loss: -7.8713 dB  
3
4
CH1 CENTER 71.000 000 MHz  
SPAN 3.000 000 MHz  
29 Oct 2003 08:45:55  
CH1  
CH2  
S
log MAG  
delay  
1 dB/  
500 ns/  
REF -7.876 dB  
REF 2.25 us  
1_  
0
dB  
21  
21  
S
3_:-54.264 ns  
205301B  
0.000 000 MHz  
PRm  
Cor  
205301B  
REF=1  
BW: .312 399 MHz  
cent: 71.007947 MHz  
Q: 227.3  
1
1_ loss: -7.8716 dB  
2
2
.160 000 MHz  
3
REF=2  
1
mean: 2.358 5 us  
2
PRm  
Cor  
3
4
s.dev: 33.258 ns  
p-p: 177 ns  
Smo  
1
CENTER 71.000 000 MHz  
SPAN .500 000 MHz  
I T F Co., Ltd.  
102-901, Bucheon Technopark 364,  
Samjeong-Dong, Ojeong-Gu, Bucheon-City,  
Gyounggi-Do, Korea 421-809  
Part No.  
205301B  
Rev. Date  
2004-03-18  
4/5  
Rev.  
NW3026-CS02  
SAW Bandpass Filter 205301B  
29 Oct 2003 08:50:52  
29 Oct 2003 08:46:36  
REF -7.876 dB 1_: 0  
REF -7.885 dB 3_ .2702 dB  
CH1  
S
log MAG  
10 dB/  
REF -7.876 dB  
1_: 0  
dB  
CH1  
CH2  
S
S
log MAG  
log MAG  
1 dB/  
1 dB/  
dB  
21  
205301B  
21  
21  
0.000 000 MHz  
205301B  
205301B  
0.000 000 MHz  
REF=1  
PRm  
Cor  
PRm  
Cor  
REF=1  
2_:-35.397 dB  
-400 kHz  
BW: .169 867 MHz  
cent: 71.007031 MHz  
Q: 418.02  
1_ loss: -7.8746 dB  
3_:-31.334 dB  
400 kHz  
1
1
2
3
4
3
.160 000 MHz  
1
REF=2  
mean:-8.198 8 dB  
s.dev: .2873 dB  
p-p: 1.0449 dB  
PRm  
Cor  
2
3
2
1
2
CH1 CENTER 71.000 000 MHz  
SPAN 3.000 000 MHz  
CENTER 71.000 000 MHz  
SPAN .500 000 MHz  
29 Oct 2003 08:49:19  
29 Oct 2003 08:47:34  
-6.0547 370.23 pF  
-2.9355 763.61 pF  
CH1  
S
log MAG  
10 dB/  
REF -8.34 dB  
1_: 0  
dB  
CH1  
CH2  
S
S
1 U FS  
1 U FS  
1_: 32.648  
2_ 60.271  
21  
205301B  
11  
22  
0.000 000 MHz  
205301B  
205301B  
71.000 000 MHz  
REF=1  
PRm  
PRm  
Cor  
2_:-44.405 dB  
44.045 MHz  
1
3_:-38.334 dB  
58.988 MHz  
2
1
71.000 000 MHz  
PRm  
Cor  
3
2
START .010 000 MHz  
STOP 400.000 000 MHz  
CENTER 71.000 000 MHz  
SPAN 3.000 000 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.  
205301B  
2004-03-18  
5/5  
NW3026-CS02