RF1238 데이터 시트보기 (PDF) - RF Monolithics, Inc
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RF1238 Datasheet PDF : 2 Pages
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318.0 MHz
SAW Filter
Absolute Maximum Ratings
Rating
Incident RF Power
DC Voltage Between Any Two Pins (Observe ESD Precautions)
Case Temperature5
Value
+13
±30
-40 to +85
Units
dBm
VDC
°C
Typical Filter Response
Typical filter responses are shown below. The actual response is dependent on external impedance matching and circuit layout. Illustrated frequencies
and minimum rejection for LO and IMAGE are shown only for superhet receivers with 10.7 MHz IF.
.
0
0
dB
dB
-10
-1
LO
-20
-2
-30
-40 Image
-50
-60
-3
-4
Minimum 3dB
Passband
-5
at 25oC
-6
-70
-7
-80
5 MHz/div
Frequency
-8
100 KHz/div
Frequency
Electrical Connections
Pin
Connection
1 Input or Output
2 Output or Input
3
Case Ground
Typical Test Circuit
Bottom View
Pin 1
Pin 2
Pin 33
Case Design
C
G
B
F
A
E
D
(3 places)
J
(2 places)
H
45°
From 50Ω
Network
Analyzer
L
1
C
L
2
3
C
To 50 Ω
Network
Analyzer
Dimensions
A
B
C
D
E
F
G
H
J
Millimeters
Min
Max
9.30
3.18
2.50
3.50
0.46 Nominal
5.08 Nominal
2.54 Nominal
2.54 Nominal
1.02
1.40
Inches
Min
Max
0.366
0.125
0.098
0.138
0.018 Nominal
0.200 Nominal
0.100 Nominal
0.100 Nominal
0.040
0.055
RF Monolithics, Inc. Phone: (972) 233-2903
Fax: (972) 387-8148
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: info@rfm.com
http://www.rfm.com
RF1238-102401
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