TMX R479
SAW Bandpass Filter
AMPS - IF
TENTATIVE SPECIFICATION
All performances include temperature variations
June 12 2001
page 1/3
rev. 0
th
Minimum
Source Impedance (Single)
Load Impedance (Single)
Operating Temperature Range
Center Frequency fo
Template on the amplitude, reference is loss at fo
Bandwidth @ -3.0 dB
Attenuation within fo
~
60 kHz
Attenuation within fo
~
120 kHz
Attenuation within fo
~
330 kHz
Amplitude ripple within fo ± 12 kHz
(1)
Typical
50
850
-
85.38
±
24
38
50
55
0.3
5.5
3.2
7x5
1.15
6
Maximum
-
-
+85
-
-
-
-
-
1.5
20
4.5
-
1.35
Ω
Ω
°C
MHz
kHz
dB
dB
dB
dB
µs
dB
mm²
mm
1
2,4,7,9
Output (+)
To Be Grounded
-
-
-30
-
±
12
25
45
40
-
-
-
-
-
Group delay deviation within fo
~
12 kHz
Insertion Loss at fo (without losses in test fixure)
Package type & size
Length x Width
Height
Pin Out
Input (+)
Case Ground
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
Ω
/ 850
Ω
Configuration
L
1
Output
850
Ω
Single
Input
50
Ω
Single
C
T1
C
1
C
T2
L
2
GND
Thomson Microsonics Test Fixture
L
1
= 470 nH
C
1
= 3.9 pF
L
2
= 820 nH
C
T1
, C
T2
= Tuning capacitors for Inductors (L1 / L2) adjustment
Customer PC Board
L
1
= TBD
C
1
= TBD
L
2
= TBD
R479-R0.doc
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