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參數(shù)資料
| 型號(hào)： | TMXR479 |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | 1 FUNCTIONS, 85.38 MHz, SAW FILTER |
| 文件頁(yè)數(shù)： | 1/3頁(yè) |
| 文件大?。?/td> | 67K |
| 代理商： | TMXR479 |
TMX R479
June 12
th 2001
page 1/3
SAW Bandpass Filter
rev. 0
AMPS - IF
TENTATIVE SPECIFICATION
R479-R0.doc
All performances include temperature variations
Minimum
Typical
Maximum
Source Impedance (Single)
-
50
-
Load Impedance (Single)
-
850
-
Operating Temperature Range
°C
-30
-
+85
Center Frequency fo
MHz
-
85.38
-
Template on the amplitude, reference is loss at fo
Bandwidth @ -3.0 dB
kHz
± 12
± 24
-
Attenuation within fo
~
~ 60 kHz
dB
25
38
-
Attenuation within fo
~
~ 120 kHz
dB
45
50
-
Attenuation within fo
~
~ 330 kHz
dB
40
55
-
Amplitude ripple within fo ± 12 kHz
(1)
dB
-
0.3
1.5
Group delay deviation within fo
~
~ 12 kHz
s
-
5.5
20
Insertion Loss at fo (without losses in test fixure)
dB
-
3.2
4.5
Package type & size
Length x Width
mm
-
7 x 5
-
Height
mm
-
1.15
1.35
Pin Out
Input (+)
1
Output (+)
6
Case Ground
2,4,7,9
To Be Grounded
2,3,4,5,7,8,9,10
Notes :
(1) Amplitude ripple is the difference in dB, between amplitude variation in fo ± 12 kHz and a second order
polynomial fit of this variation in the same frequency band.
Matching Network for 50
/ 850 Configuration
Thomson Microsonics Test Fixture
Customer PC Board
L1 = 470 nH
C1 = 3.9 pF
L1 = TBD
C1 = TBD
L2 = 820 nH
L2 = TBD
CT1, CT2 = Tuning capacitors for Inductors (L1 / L2) adjustment
CT2
Input
50
Single
Output
850
Single
GND
L2
L1
C1
CT1
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