ITF T81251B

812.5 MHz SAW Filter
Part Number T81251B
1. Features
Typical 1dB bandwidth of 7.6 MHz
High attenuation
Single Ended Operation
Surface Mounted Package (SMD)
2. Electrical Specifications
Source and Load Impedance = 50Ω
Minimum
Typical
Maximum
Room Temperature : +25℃
℃
Center Frequency (fo)
MHz
-
812.5
-
dB
-
22.5
24.5
1dB Bandwidth
3dB Bandwidth
MHz
MHz
7.7
7.6
8.05
-
40dB Bandwidth
MHz
-
10.2
10.4
Amplitude Ripple (fo ± 3.5 MHz)
Group Delay Variation (fo ± 3.5 MHz)
dB
nsec
-
0.7
75
1.5
150
Absolute Delay
usec
-
1.6
-
40
45
-
Insertion Loss
Ultimate Rejection
dB
2
ppm/℃
℃
Temperature Coefficient of Frequency
-0.03
S1365 Package Dimension
13.30±0.2
12
8
7.62±0.1
7
ITF RSOC01
T81251B
。812.5-7.6M
1
2
3
7
8
9
10
2.7nH
11
6
6
1.50±0.1
5
5
4
2.54±0.1
11
9
1.61±0.2
6.50±0.2
10
Matching Network Configuration
Input
50 Ω
5
11
2.2nH
5pF
7pF
Output
50 Ω
12
4
3
2
2.54±0.1
1
0.80±0.1
Pin Configuration
Dimensions shown are nominal in millimeters
Body : Al2O3
Lid : Kovar, Ni Plated
Termination : Au plating 0.3 ~ 1.0um, over a 1.27 ~ 8.89um Ni Plating
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
Input
11
Ground
6, 12
Output
5
Others
Ground
http://www.itf.co.kr
[email protected]
2013. 03. 29
Rev 1.0
812.5 MHz SAW Filter
Part Number T81251B
3. Typical Performance ( at +25℃
℃)
1dB Bandwidth & Ripple(Fo ± 3.5 MHz)
CH2
CH4
S21
S21
LOG
LOG
1 dB/
1 dB/
40dB Bandwidth
6 Feb 2012 16:57:58
1: 0. 0000 dB
0. 000 000 MHz
3: - . 00990 dB
7. 000 000 MHz
REF -22.2 dB
REF -22.2 dB
CH1
S21
LOG
10 dB/
6 Feb 2012 16:57:12
1: 0. 0000 dB
0. 000 000 MHz
REF -22.2 dB
MI812A E1
3-2 S1365 M1S
CH2 Markers
REF=1MHz
7. 621391
BW:
cent : 812 . 503865
PRm
BW:
1
MHz
CH1 Markers
REF=1MHz
10 . 125151
cent : 812 . 516452
Q: 106 . 61
1_loss
: -22 . 521 dB
1
MHz
Q: 80 . 247
2
1_loss
: -22 . 480 dB
Cor
2
3
4
3
PRm
2
CH4 Markers
mean : -22 REF=2
. 553 dB
s. dev : . 14970
dB
p-p : . 64770
dB
4
3
Cor
CENTER 812 . 500 000 MHz
SPAN
10 . 000 000 MHz
2
4
CENTER 812 . 500 000 MHz
3dB Bandwidth & Group Delay(Fo ± 3.5 MHz)
CH2
CH4
S21
S21
LOG
DEL
1 dB/
200 ns/
40 . 000 000 MHz
Smith Chart(S11 & S22)
6 Feb 2012 16:57:44
1: 0. 0000 dB
0. 000 000 MHz
3: -11 . 978 ns
7. 000 000 MHz
REF -22.2 dB
REF 1.56 us
SPAN
CH1 S11
CH3 S22
3-2 S1365 M1S
1 U FS
1 U FS
1: 49. 352
2: 102 . 19
81. 242
33. 949
6 Feb 2012 16:58:12
15. 914 nH
812 . 500 000 MHz
6. 6501 nH
812 . 500 000 MHz
MI812A E1
CH2 Markers
REF=1MHz
8. 057282
BW:
cent : 812 . 517183
PRm
MHz
Q: 100 . 84
1_loss
1
: -22 . 519 dB
1
Cor
2
2
3
2
PRm
CH4 Markers
mean : 1. REF=2
6076 us
4
s. dev : 13 . 460 ns
3
Smo
p-p : 70 . 725 ns
Cor
4
CENTER 812 . 500 000 MHz
SPAN
10 . 000 000 MHz
2
CENTER 812 . 500 000 MHz
Wideband Properties
CH1
S21
LOG
10 dB/
REF -22.2 dB
SPAN 40. 000 000 MHz
SWR(S11 & S22)
6 Feb 2012 16:59:16
1: -25 . 379 dB
812 . 500 000 MHz
CH1
CH3
MI812A E1
S11
S22
SWR
SWR
1 /
1 /
6 Feb 2012 16:58:37
1: 4. 4597
812 . 500 000 MHz
2: 2. 3363
812 . 500 000 MHz
REF 0
REF 0
MI812A E1
PRm
PRm
1
Cor
1
2
START
. 010 000 MHz
STOP 2 000 . 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
CENTER 812 . 500 000 MHz
http://www.itf.co.kr
SPAN
[email protected]
40 . 000 000 MHz
2013. 03. 29
Rev 1.0