SF2243A [RFM]
233 MHz SAW Filter; 233 MHz的SAW滤波器
| 型号： | SF2243A |
| 厂家： | 
RF MONOLITHICS, INC |
| 描述： | 233 MHz SAW Filter |
| 文件： | 总5页 (文件大小：320K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Preliminary
SF2243A
• Low Insertion Loss
• Excellent Size-to-performance Ratio
• Hermetic 13.3 x 6.5 mm Surface-mount Case
• Single-ended Input and Output
233 MHz
• Complies with Directive 2002/95/EC (RoHS)
SAW Filter
Pb
Absolute Maximum Ratings
Rating
Value
+18
Units
dBm
VDC
°C
Maximum Incident Power in Passband
Maximum DC Voltage on any Non-ground Terminal
Storage Temperature Range in Tape and Reel
10
-40 to +85
Suitable for Lead-free Soldering - Maximum Soldering Profile
260 °C for 30 s
SMP-53-S
Electrical Specifications
Characteristic
Sym
Notes
Min
Typ
233.0
11.0
0.6
Max
Units
f
Center Frequency
MHz
dB
C
IL
Maximum Insertion Loss
Passband Ripple, 231.0 to 235.0 MHz
1 dB Bandwidth
1
12.0
1.0
-
MAX
dB
P-P
BW
MHz
MHz
MHz
4.0
5.3
1
BW
3 dB Bandwidth
1, 2
-
-
6.0
-
3
BW
45 dB Bandwidth
8.3
10.0
45
Rejection Referenced to IL
1 to 210 MHz
:
1, 2, 3
MIN
45
45
50
50
dB
246 to 400 MHz
T
Operating Temperature Range
Frequency Temperature Coefficient
Wafer Material
1
-20
+70
°C
A
-23
ppm/°C
LiTaO
3
Impedance Matching to 50 Ω Single-ended Source and Load
Case Style
External L-C
SMP-53-S 13.3 x 6.5 mm Nominal Footprint
SF2243A, YYWW
Lid Symbolization (YY = year, WW = week)
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. The turnover temperature, T , is the temperature of maximum (or turnover) frequency, f . The nominal frequency at any case temperature, T , may
O
o
c
2
be calculated from: f=f [1-FTC(T -T ) ].
o
o
c
5. The design, manufacturing process, and specifications of this filter are subject to change.
6. 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.
7. US and international patents may apply.
www.RFM.com E-mail: info@rfm.com
©2010 by RF Monolithics, Inc.
Page 1 of 5
SF2243A - 12/13/10
Frequency Respose Plots
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©2010 by RF Monolithics, Inc.
Page 2 of 5
SF2243A - 12/13/10
Input/Output Impedance Plots
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©2010 by RF Monolithics, Inc.
Page 3 of 5
SF2243A - 12/13/10
SMP-53-S Ceramic Surface-mount 10-terminal Case
13.3 x 6.5 mm Nominal Footprint
Case Dimensions
mm
Inches
Nom
.524
Dimension
Min
Nom
13.3
6.5
Max
Min
Max
A
B
C
D
E
F
.256
2.00
.078
2.3
1.91
1.02
1.0
.091
.075
.040
G
0.039
Electrical Connections
Connection
Input
Terminals
Case Material
10
5
Materials
Output
Solder Pad
Plating
0.3 to 1.0 µm Gold over 1.27 to 8.89 µm Nickel
Case Ground
All others
Lid Plating
Body
2.0 to 3.0 µm Nickel
Al O Ceramic
2
3
Pb Free
Typical Matching Network
10
5
L1 = 27 nH, C1 = 18 pF, L2 = 33 nH, C2 = 20 pF
PCB Footprint (mm)
Case Outline Drawing
B
G
A
TOP VIEW
BOTTOM VIEW
www.RFM.com E-mail: info@rfm.com
©2010 by RF Monolithics, Inc.
Page 4 of 5
SF2243A - 12/13/10
Reel Dimensions
“B”
Nominal Size
Quantity Per Reel
Inches
millimeters
178
7
500
13
330
2000
See Detail "A"
12.0
2.0
Tape Dimensions
www.RFM.com E-mail: info@rfm.com
©2010 by RF Monolithics, Inc.
Page 5 of 5
SF2243A - 12/13/10
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