74.7625 MHz SAW Filter
Part Number
231503B
1. Features
Typical 1dB bandwidth of
15.4 MHz
High attenuation
Single Ended Operation
Dual In-line Package (DIP)
2. Electrical Specifications
Source and Load Impedance = 50
Operating Temperature : -30℃ ~ +80℃
℃
℃
Center Frequency (fo)
Insertion Loss
1dB Bandwidth
3dB Bandwidth
25dB Bandwidth
40dB Bandwidth
Amplitude Ripple (fo ± 7.2375 MHz)
Group Delay Variation (fo ± 7.2375 MHz)
Absolute Delay
Ultimate Rejection
Temperature Coefficient of Frequency
MHz
dB
MHz
MHz
MHz
MHz
dB
nsec
usec
dB
ppm/℃
Minimum
-
-
15.25
-
-
-
-
-
-
48
-
Typical
74.7625
23.5
15.4
15.6
16.34
16.54
0.6
60
2.9
52
-72
Maximum
-
25.0
-
-
16.45
-
1.0
120
-
-
-
Room Temperature : +25℃
℃
Insertion Loss
Amplitude Ripple (fo ± 7.54 MHz)
Group Delay Variation (fo ± 7.54 MHz)
Out of Band gain
@BW Edge ± 1.0 MHz
1. @BW Edge : 14.475MHz
2. Input POWER : +10dBm
dB
dB
dB
nsec
Minimum
-
-
-
Typical
23.5
0.6
60
Maximum
25.0
1.0
120
25
33
-
D3512 Package Dimension
12.8±0.5
5.5max 6.0max
7.6±0.2
2.5±0.2
Matching Schematic
1
Input
50
Ω
5
L2
Output
50
Ω
L1
ITF 13A001
231503B
74.7625-15.4M
C1
25.4±0.2
C2
35.1±0.5
0.45±0.05
2.5±0.2
L1 = 100nH, L2 =120nH, C1 = 30pF, C2 = 33pF
Pin Configuration
Dimensions shown are nominal in millimeters
Base : Fe(SPCC), Au plating over Ni plated
Cap : Cu & Cr Alloy, Ni Plated
Termination : Kovar, Au Plated
Input
Output
1
5
Ground
Others
2,4
Ground
I T F Co., Ltd.
102-901, Bucheon Technopark 364, Samjeong-Dong,
Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
Tel: 82-32-621-1213
Fax: 82-32-621-1218
http://www.itf.co.kr
sales@itf.co.kr
2013. 04. 01
Rev 1.0
74.7625 MHz SAW Filter
Part Number
231503B
3. Typical Performance ( at +25℃ )
℃
1dB Bandwidth & Ripple
CH1 S21
CH2 S21
LOG
LOG
1 dB/
1 dB/
REF -22.92 dB
REF -23.39 dB
29 May 2012 15:44:58
1: 0. 0000 dB
0. 000 000 MHz
3:- . 06460 dB
15. 080 000 MHz
25dB Bandwidth & 40dB Bandwidth
CH1 S21
CH2 S21
*
LOG
LOG
10 dB/
10 dB/
REF -23.17 dB
REF -23.17 dB
29 May 2012 16:49:15
1: 0. 0000 dB
0. 000 000 MHz
1: 0. 0000 dB
0. 000 000 MHz
CH1 Markers
REF=1
BW 15. 396559 MHz
:
Cor
cent :
74. 764828 MHz
Q: 4. 8559
1_loss : -23 . 267 dB
1
2
CH1 Markers
REF=1
BW 16. 340493 MHz
:
1
2
cent :
74. 750048 MHz
Q: 4. 5745
1_loss : -23 . 165 dB
Cor
3
4
3
3
4
2
Cor
CH2 Markers
REF=2
mean:-23 . 186 dB
s. dev : . 11840 dB
p-p : . 55720 dB
Cor
3
4
CH2 Markers
REF=1
BW 16. 541544 MHz
:
cent :
74. 751245 MHz
Q: 4. 5190
1_loss : -23 . 165 dB
START 65. 267 500 MHz
STOP 84. 267 500 MHz
CENTER 74. 767 500 MHz
SPAN 50. 000 000 MHz
3dB Bandwidth & Group Delay
CH1 S21
CH2 S21
LOG
DEL
1 dB/
100 ns/
REF -22.92 dB
REF 2.853 us
29 May 2012 15:45:31
1: 0. 0000 dB
0. 000 000 MHz
3:-997 . 72 ps
15. 080 000 MHz
CH1 S21
LOG
10 dB/
Out of Band gain
REF -23.17 dB
29 May 2012 16:48:36
1: 0. 0000 dB
0. 000 000 MHz
CH1 Markers
REF=1
BW 15. 604674 MHz
:
Cor
cent :
74. 761160 MHz
Q: 4. 7909
1_loss : -23 . 264 dB
1
2
*
CH1 Markers
REF=1
2: . 27580 dB
-7 . 23750 MHz
4
3:-30 . 486 dB
-8 . 23750 MHz
4: . 10700 dB
7. 23750 MHz
5:-37 . 363 dB
8. 23750 MHz
1
Cor
2
3
Smo
Cor
3
2
3
5
CH2 Markers
REF=2
mean: 2. 9053 us
4
s. dev : 9. 7654 ns
p-p : 56. 377 ns
CENTER 74. 767 500 MHz
SPAN 19. 000 000 MHz
CENTER 74. 767 500 MHz
SPAN 50. 000 000 MHz
Wideband Properties
CH1 S21
LOG
10 dB/
REF -24.97 dB
29 May 2012 15:47:14
1: 0. 0000 dB
0. 000 000 MHz
CH1 S11
CH2 S22
SWR
SWR
10 /
10 /
SWR(S11 & S22)
REF 5.095
REF 4.71
29 May 2012 15:46:20
1: 5. 0994
74. 767 500 MHz
2: 4. 7139
74. 767 500 MHz
CH1 Markers
REF=1
2:-74 . 538 dB
74. 7675 MHz
3:-70 . 454 dB
149 . 535 MHz
Cor
1
1
Cor
2
START
. 010 000 MHz
2
STOP 300 . 000 000 MHz
3
CENTER 74. 767 500 MHz
SPAN 50. 000 000 MHz
I T F Co., Ltd.
102-901, Bucheon Technopark 364, Samjeong-Dong,
Ojeong-Gu, Bucheon-City,
Gyounggi-Do, Korea 421-809
Tel: 82-32-621-1213
Fax: 82-32-621-1218
http://www.itf.co.kr
sales@itf.co.kr
2013. 04. 01
Rev 1.0
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