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参数资料
| 型号： | SF1217D |
| 厂商： | RFM |
| 文件页数： | 1/5页 |
| 文件大小： | 0K |
| 描述： | SAW FILTER RF 491.2MHZ SM3838-6 |
| 标准包装： | 500 |
| 频率： | 491.2MHz 中心 |
| 带宽： | 5MHz |
| 滤波器类型： | 带通 |
| 插入损耗： | 2.5dB |
| 应用： | CDMA |
| 封装/外壳： | 6-SMD，无引线 |
| 安装类型： | 表面贴装 |
| 包装： | 带卷 (TR) |
| 高度（最大）： | 0.067"（1.70mm） |
| 尺寸/尺寸： | 0.150" L x 0.150" W（3.80mm x 3.80mm） |
Preliminary
SF1217D
? CDMA 450 F-Band RF SAW Filter
? 3.8 x 3.8 x 1.4 mm Surface-mount Package
? Complies with Directive 2002/95/EC (RoHS)
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Maximum DC voltage between any Two Terminals
Storage Temperature Range
Pb
Value
+27
30
-40 to +85
Units
dBm
VDC
°C
491.2 MHz
SAW Filter
Suitable for Lead-free Soldering - Maximum Soldering Profile
260°C for 30 s
SM3838-6
Electrical Characteristics
Characteristic
Sym
Notes
Min
Typ
Max
Units
Nominal 1 dB Center Frequency
f C
491.2
MHz
Passband Insertion Loss
489.0 to 493.5 MHz
IL
1
2.5
3.5
dB
VSWR
489.0 to 493.5 MHz
1.5:1
2:1
Rejection
0.3 to 479.0 MHz
40
50
479.0 to 483.5 MHz
515 to 800 MHz
800 to 1200 MHz
1200 to 2000 MHz
1, 2, 3
35
40
30
20
49
49
42
35
dB
Operating Temperature Range
T A
1
-30
+80
°C
Impedance at f c
Source, single ended
50 ohm
Load, single ended
Case Style
Lid Symbolization (Y=year, WW=week, S=shift) dot=pin 1 indicator
50 ohm
SM3838-6 3.8 x 3.8 mm Nominal Footprint
630, YWWS
Standard Reel Quantity
Electrical Connections
Connection
Port 1
Port 2
Case Ground
Reel Size 7 Inch
Reel Size 13 Inch
Terminals
2
5
All others
1000 Pieces/Reel
3000 Pieces/Reel
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
Unless noted otherwise, all specifications apply over the operating temper-
and "ENG" or "E" indicates "engineering prototypes."
2.
3.
4.
ature range with filter soldered to the specified demonstration board with
impedance matching to 50 ? and measured with 50 ? network analyzer.
Unless noted otherwise, all frequency specifications are referenced to the
nominal center frequency, fc.
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.
"LRIP" or "L" after the part number indicates "low rate initial production"
5.
6.
7.
8.
The design, manufacturing process, and specifications of this filter are
subject to change.
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.
US and international patents may apply.
RFM, stylized RFM logo, and RF Monolithics, Inc. are registered
trademarks of RF Monolithics, Inc.
www.RFM.com E-mail: info@rfm.com
?2008 by RF Monolithics, Inc.
Page 1 of 5
SF1217D - 12/12/08
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