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SAW Bandpass Filter 203305B  
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  
12.7±0.5  
5.5max 6.0max  
7.6±0.2  
Package : D2012  
Pin Configuration  
1
Input  
Output  
5
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, 4  
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.  
203305B  
Rev. Date  
2004-04-19  
1/5  
Rev.  
NI0009-CS03  
SAW Bandpass Filter 203305B  
3. Specifications  
Fo = 76.945 MHz  
Terminating source impedance : 50Ω and matching network  
Terminating load impedance  
: 50Ω and matching network  
Minimum  
Typical  
76.945  
23.5  
3.5  
Maximum  
Center Frequency  
MHz  
dB  
76.895  
76.995  
Insertion Loss  
-
25.0  
-
1dB Bandwidth  
MHz  
MHz  
MHz  
dB  
-
3dB Bandwidth  
3.84  
3.91  
5.5  
3.94  
5.7  
1.0  
150  
-
40dB Bandwidth  
-
-
Amplitude Ripple (Fo +/- 1.5 MHz)  
0.5  
Group Delay Variation (Fo +/- 1.5 MHz)  
Absolute Delay  
nsec  
usec  
-
80  
-
3.0  
Ultimate Rejection  
dB  
50  
-
55  
-
Temperature Coefficient of Frequency  
ppm/°C  
-94  
-
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.  
Part No.  
Rev. Date  
Rev.  
203305B  
102-901, Bucheon Technopark 364,  
Samjeong-Dong, Ojeong-Gu, Bucheon-City,  
Gyounggi-Do, Korea 421-809  
2004-04-19  
2/5  
NI0009-CS03  
SAW Bandpass Filter 203305B  
4. Matching Schematic  
( Actual matching values may vary due to PCB layout and parasitics )  
L1  
L2  
Input  
50Ω  
Output  
50Ω  
C1  
C2  
L1 = L2 = 27 nH  
C1 = 90 pF,  
C2 = 82 pF  
5. Marking Configuration  
ITF1) 04A0012)  
203305B3)  
1) Manufacturer name  
2) Lot Number  
3) Part Number  
I T F Co., Ltd.  
Part No.  
203305B  
102-901, Bucheon Technopark 364,  
Samjeong-Dong, Ojeong-Gu, Bucheon-City,  
Gyounggi-Do, Korea 421-809  
Rev. Date  
Rev.  
2004-04-19  
3/5  
NI0009-CS03  
SAW Bandpass Filter 203305B  
6. Typical Performance ( at +25℃ )  
27 Oct 2003 17:30:14  
CH1  
S
log MAG  
10 dB/  
REF -23.16 dB  
1_: 0  
dB  
21  
0.000 000 MHz  
REF=1  
PRm  
Cor  
BW: 5.550 321 MHz  
cent: 76.940201 MHz  
1
2
Q: 13.862  
1_ loss: -23.156 dB  
3
4
CH1 CENTER 76.945 000 MHz  
SPAN 15.000 000 MHz  
27 Oct 2003 17:31:08  
CH1  
CH2  
S
S
log MAG  
delay  
1 dB/  
500 ns/  
REF -23.16 dB  
REF 2.303 us  
1_  
0
dB  
21  
21  
3_: 8.1063 ns  
0.000 000 MHz  
PRm  
Cor  
REF=1  
BW: 3.910 313 MHz  
cent: 76.943046 MHz  
Q: 19.677  
1_ loss: -23.133 dB  
1
2
3.000 000 MHz  
3
REF=2  
2
mean: 2.299 us  
s.dev: 18.484 ns  
PRm  
Cor  
3
4
2
1
p-p: 80.586 ns  
Smo  
CENTER 76.945 000 MHz  
SPAN 4.000 000 MHz  
I T F Co., Ltd.  
Part No.  
Rev. Date  
Rev.  
203305B  
102-901, Bucheon Technopark 364,  
Samjeong-Dong, Ojeong-Gu, Bucheon-City,  
Gyounggi-Do, Korea 421-809  
2004-04-19  
4/5  
NI0009-CS03  
SAW Bandpass Filter 203305B  
27 Oct 2003 17:30:46  
30 Jan 2004 16:35:16  
REF -25.96 dB 1_:-25.974 dB  
CH1  
CH2  
S
S
log MAG  
log MAG  
1 dB/  
1 dB/  
REF -23.16 dB  
REF -23.26 dB  
1_: 0  
3_ .1070 dB  
dB  
CH1  
S
log MAG  
10 dB/  
21  
21  
21  
76.945 000 MHz  
0.000 000 MHz  
PRm  
Cor  
PRm  
REF=1  
BW: 3.523 673 MHz  
cent: 76.943653 MHz  
Q: 21.836  
1_ loss: -23.135 dB  
1
1
2
3
4
3.000 000 MHz  
3
REF=2  
mean:-23.193 dB  
s.dev: .0703 dB  
p-p: .3271 dB  
PRm  
Cor  
2
1
2
CENTER 76.945 000 MHz  
SPAN 4.000 000 MHz  
CH1 START .010 000 MHz  
STOP 300.000 000 MHz  
27 Oct 2003 17:32:57  
1_: 13.154  
2_ 11.309  
27 Oct 2003 17:33:05  
CH1  
CH2  
S
S
SWR  
SWR  
10  
10  
/
/
REF 13.11  
REF 11.33  
11  
22  
CH1  
CH2  
S
S
1 U FS  
1 U FS  
1_ 4.0244  
2_: 4.6787  
-11.697  
-12.326  
176.84 pF  
167.81 pF  
11  
22  
1
76.945 000 MHz  
76.945 000 MHz  
PRm  
Cor  
PRm  
Cor  
1
2
76.945 000 MHz  
76.945 000 MHz  
PRm  
Cor  
2
PRm  
Cor  
1
2
CENTER 76.945 000 MHz  
SPAN 15.000 000 MHz  
CENTER 76.945 000 MHz  
SPAN 15.000 000 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.  
203305B  
2004-04-19  
5/5  
NI0009-CS03