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77.5 MHz SAW Filter  
Part Number 231152B  
1. Features  
Typical 1dB bandwidth of 10.63 MHz  
Low-Loss Filter  
Single Ended Operation  
Ceramic Surface Mount Device(SMD) Package  
2. Electrical Specifications  
Source and Load Impedance = 50Ω  
Operating Temperature : -20℃ ~ +70℃  
Minimum  
Typical  
77.5  
11.0  
10.63  
11.24  
13.65  
0.3  
Maximum  
Center Frequency (fo)  
Insertion Loss  
MHz  
dB  
-
-
13.5  
-
-
1dB Bandwidth  
MHz  
MHz  
MHz  
dB  
10.1  
3dB Bandwidth  
-
-
-
40dB Bandwidth  
14.2  
1.0  
70  
1.1  
-
Amplitude Ripple (fo ± 4.375 MHz)  
Group Delay Variation (fo ± 4.375 MHz)  
Absolute Delay  
-
nsec  
usec  
dB  
-
35  
-
1.06  
45  
Ultimate Rejection  
40  
-
Temperature Coefficient of Frequency  
ppm/℃  
-86  
-
Room Temperature : +25℃  
Minimum  
Typical  
11.0  
0.3  
Maximum  
13.0  
Insertion Loss  
dB  
dB  
-
-
-
Amplitude Ripple (fo ± 4.675 MHz)  
Group Delay Variation (fo ± 4.675 MHz)  
1.0  
nsec  
35  
70  
S1365 Package Dimension  
Matching Schematic  
13.30±0.2  
7.62±0.1  
L1  
L2  
11  
5
10  
9
8
7
I nput  
50Ω  
Output  
50Ω  
7
8
9
10  
6
5
11  
12  
11  
12  
ITF 16A001  
231152B  
. 77.5-10.6M  
6
5
1.50±0.1  
C1  
L3  
4
3
2
2.54±0.1  
1
1
2
3
4
0.80±0.1  
C1 = 75pF, L1 = 82nH, L2 = 5.6nH, L3 = 39nH  
Pin Configuration  
Dimensions shown are nominal in millimeters  
Input  
11  
5
Ground  
Others  
6, 12  
Body : Al2O3  
Lid : Kovar, Ni Plated  
Termination : Au plating 0.3 ~ 1.0um, over a 1.27 ~ 8.89um Ni Plating  
Output  
Ground  
I T F Co., Ltd.  
102-901, Bucheon Technopark 364, Samjeong-Dong,  
Ojeong-Gu, Bucheon-City,  
Tel: 82-32-621-1213  
Fax: 82-32-621-1218  
http://www.itf.co.kr  
sales@itf.co.kr  
2016. 02. 23  
Rev 1.0  
Gyounggi-Do, Korea 421-809  
77.5 MHz SAW Filter  
Part Number 231152B  
3. Typical Performance ( at +25℃ )  
1dB Bandwidth & Ripple  
40dB Bandwidth  
23 Feb 2016 10:19:55  
1: 0. 0000 dB  
3: . 02590 dB  
23 Feb 2016 10:19:15  
1: 0. 0000 dB  
CH2 S21 LOG  
CH4 S21 LOG  
1 dB/ REF -10.1 dB  
1 dB/ REF -10.1 dB  
0. 000 000 MHz  
9. 350 000 MHz  
CH1 S21 LOG  
10 dB/ REF -10.1 dB  
0. 000 000 MHz  
CH2 Markers  
REF=1  
BW: 10. 603424 MHz  
CH1 Markers  
REF=1  
BW: 13. 803573 MHz  
1
cent : 77. 511013 MHz  
Q: 7. 3100  
Cor  
cent : 77. 730318 MHz  
Q: 5. 6312  
2
1_loss : -10 . 383 dB  
1
2
1_loss : -10 . 378 dB  
3
4
3
2
CH4 Markers  
REF=2  
3
4
Cor  
Cor  
mean:-10 . 328 dB  
s. dev : . 07600 dB  
p-p : . 35300 dB  
42  
CENTER 77. 500 000 MHz  
SPAN 13. 000 000 MHz  
CENTER 77. 500 000 MHz  
SPAN 40. 000 000 MHz  
3dB Bandwidth & Group Delay  
Smith Chart(S11 & S22)  
23 Feb 2016 10:19:38  
1: 0. 0000 dB  
3:-2 . 3520 ns  
23 Feb 2016 10:22:00  
CH2 S21 LOG  
CH4 S21 DEL  
1 dB/ REF -10.1 dB  
70 ns/ REF 1.035 us  
0. 000 000 MHz  
9. 350 000 MHz  
CH1 S11 1 U FS  
CH3 S22 1 U FS  
1: 21.028  
2: 52.863  
6.7549 13.872 nH  
18.684 38.369 nH  
77.500 000 MHz  
77.500 000 MHz  
CH2 Markers  
REF=1  
BW: 11. 240841 MHz  
cent : 77. 555601 MHz  
Q: 6. 8994  
Cor  
Cor  
1_loss : -10 . 382 dB  
1
2
2
1
3
4
2
CH4 Markers  
REF=2  
mean: 1. 0605 us  
4
Cor  
3
Smo  
s. dev : 7. 9631 ns  
p-p : 38. 558 ns  
Cor  
2
CENTER 77. 500 000 MHz  
SPAN 13. 000 000 MHz  
CENTER 77.500 000 MHz  
SPAN 40.000 000 MHz  
Wide band Properties  
SWR(S11 & S22)  
23 Feb 2016 10:23:01  
1: 0. 0000 dB 0. 000 000 MHz  
23 Feb 2016 10:22:17  
1: 2. 4294  
2: 1. 4420  
CH1 S21 LOG  
10 dB/ REF -10.1 dB  
CH1 S11 SWR  
CH3 S22 SWR  
5 / REF 0  
5 / REF 0  
77. 500 000 MHz  
77. 500 000 MHz  
CH1 Markers  
REF=1  
2:-39 . 805 dB  
77. 5000 MHz  
1
Cor  
Cor  
3:-53 . 488 dB  
155 . 000 MHz  
1
2
2
3
START . 010 000 MHz  
STOP 500 . 000 000 MHz  
CENTER 77. 500 000 MHz  
SPAN 40. 000 000 MHz  
I T F Co., Ltd.  
102-901, Bucheon Technopark 364, Samjeong-Dong,  
Ojeong-Gu, Bucheon-City,  
Tel: 82-32-621-1213  
Fax: 82-32-621-1218  
http://www.itf.co.kr  
sales@itf.co.kr  
2016. 02. 23  
Rev 1.0  
Gyounggi-Do, Korea 421-809