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PDF SF2157A Data sheet ( Hoja de datos )
| Número de pieza | SF2157A | |
| Descripción | SAW Filter | |
| Fabricantes | RF Monolithics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SF2157A (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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• Designed for WiMax Applications
• Low Insertion Loss IF Filter
• Hermetic 13.3 x 6.5 mm Surface-mount Case
• Complies with Directive 2002/95/EC (RoHS)
Pb
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Maximum DC Voltage Between any Two Terminals
Storage Temperature Range
Suitable for Lead-free Soldering - Maximum Soldering Profile
Electrical Characteristics
Characteristic
Center Frequency
1 dB Bandwidth
3 dB Bandwidth
40 dB Bandwidth
Insertion Loss
Attenuation Relative to IL
0 to123 MHz
190 to 1000 MHz
Passband Ripple, 146 to 166 MHz
Absolute Group Delay, 156 MHz
Group Delay Ripple, 146 to 166 MHz
Operating Temperature Range
Source Impedance
VSWR to Source through Matching Network
Load Impedance
VSWR to Load through Matching Network
Frequency Temperature Coefficient
Impedance Matching to 50 Ω Unbalanced
Case Style
Lid Symbolization (YY = year, WW = week)
Value
Units
+10 dBm
30 VDC
-50 to +125
°C
260 °C for 30 s
SF2157A
156 MHz
SAW Filter
SM13365-12
Sym Notes
Min
Typ Max
fC
BW1
1
1
156
20.0 22.0
BW3
1
21.0 24.0
BW40
1
27 30
IL 1
10.0
12.0
1, 2, 3
www.DataSheet.net/
1, 2, 3
1
45
45
-40
50
50
1.0
1.13
30
50
1.4:1
50
1.4:1
-94
1.8
1.50
100
+85
2:1
2:1
External L-C
SM13365-12 13.3 x 6.5 mm Nominal Footprint
RFM SF2157A YYWW
Units
MHz
MHz
MHz
MHz
dB
dB
dBP-P
µs
nsP-P
°C
ohm
ohm
ppm/K
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1. Unless noted otherwise, all specifications apply over the operating temperature range with filter soldered to the specified demonstration board with impedance
matching to 50 Ω and measured with 50 Ω network analyzer.
2. Unless noted otherwise, all frequency specifications are referenced to the nominal center frequency, fc.
3. Rejection is measured as attenuation below the minimum IL point in the passband. Rejection in final user application is dependent on PCB layout and external
impedance matching design. See Application Note No. 42 for details.
4. Part to part absolute delay measurement records the absolute delay mean across 1 dB passband.
5. "LRIP" or "L" after the part number indicates "low rate initial production" and "ENG" or "E" indicates "engineering prototypes.”
6. The design, manufacturing process, and specifications of this filter are subject to change.
7. Either Port 1 or Port 2 may be used for either input or output in the design. However, impedances and impedance matching may vary between Port 1 and Port
2, so that the filter must always be installed in one direction per the circuit design.
8. US and international patents may apply.
www.RFM.com E-mail: [email protected]
©2009 by RF Monolithics, Inc.
Page 1 of 5
SF2157A - 7/10/09
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
SM13365-12 Case
12-Terminal Ceramic Surface-Mount Case
13.3 x 6.5 mm Nominal Footprint
Case Dimensions
Dimension
mm
Min Nom
A 13.08 13.31
B 6.27 6.50
C 1.91
D 1.50
E 0.79
H 1.0
P 2.54
Electrical Connections
Connection
Input
Output
Case Ground
Max
13.60
6.80
2.00
Min
0.515
0.247
Inches
Nom
0.524
0.256
0.075
0.059
0.031
0.039
0.100
Max
0.535
0.268
0.079
Terminals
11
5
All others
Solder Pad
Plating
Lid Plating
Body
Pb Free
www.DataSheet.net/
Materials
0.3 to 1.0 µm Gold over 1.27 to 8.89 µm Nickel
2.0 to 3.0 µm Nickel
Al2O3 Ceramic
www.RFM.com E-mail: [email protected]
©2009 by RF Monolithics, Inc.
Page 5 of 5
SF2157A - 7/10/09
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet SF2157A.PDF ] | |
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