SF2242B [RFM]
Compact 40 MHz SAW Filter Design; 紧凑型40 MHz的SAW滤波器的设计
| 型号： | SF2242B |
| 厂家： | 
RF MONOLITHICS, INC |
| 描述： | Compact 40 MHz SAW Filter Design |
| 文件： | 总5页 (文件大小：895K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SF2242B
•
•
•
Compact 40 MHz SAW Filter Design
Hermetic 5 x 7 mm Surface-mount Case
Complies with Directive 2002/95/EC (RoHS)
Pb
40 MHz
SAW Filter
Absolute Maximum Ratings
Rating
Value
+10
Units
dBm
VDC
°C
Maximum Incident Power in Passband
DC Voltage on any Non-ground Terminal
Storage Temperature Range in Tape and Reel
Suitable for Lead-free Soldering - Maximum Soldering Profile
5
-40 to +85
260 °C for 30 s
SMP-03
Electrical Characteristics
Characteristic
Sym
Notes
1
Min
Typ
Max
Units
f
Center Frequency
40
9.5
5.0
1.4
190
MHz
dB
C
IL
Minimum insertion Loss
3 dB Bandwidth
1, 2
12.0
MIN
3.5
MHz
Amplitude Ripple, (f - 1.75 MHz to f + 1.75 MHz)
dB
2.0
C
C
P-P
Group Delay Ripple, (f - 1.75 MHz to f + 1.75 MHz)
ns
250
C
C
P-P
Attenuation Relative to IL
:
MIN
f
- 5 MHz to f + 5 MHz
C
20
31
31
35
35
-20
26
40
46
64
40
C
27.5 to 32.5 MHz
47.5 to 52.5 MHz
0 to 30.0 MHz
dB
°C
50.0 to 70.0 MHz
T
Operating Temperature Range
1
6
+85
A
Terminating Source Impedance (through matching network)
Terminating Source Impedance (through matching network)
Case Style
Z = 50 ohms
S
Z
= 50 ohms
L
SMP-03 7 x 5 mm Nominal Footprint
RFM/SF2242B/YYWW
Lid Symbolization (YY = year, WW = week)
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.
3.
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.
4.
5.
6.
7.
"LRIP" or "L" after the part number indicates "low rate initial production" and "ENG" or "E" indicates "engineering prototypes."
The design, manufacturing process, and specifications of this filter are subject to change.
Tape and Reel Standard ANSI / EIA 481.
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.
9.
US and international patents may apply.
Electrostatic Sensitive Device. Observe precautions for handling.
www.RFM.com E-mail: info@rfm.com
© 2010-2011 by RF Monolithics, Inc.
Page 1 of 5
SF2242B - 10/28/11
Filter Response Plots
www.RFM.com E-mail: info@rfm.com
© 2010-2011 by RF Monolithics, Inc.
Page 2 of 5
SF2242B - 10/28/11
Filter Input/Output Impedance Plots
www.RFM.com E-mail: info@rfm.com
© 2010-2011 by RF Monolithics, Inc.
Page 3 of 5
SF2242B - 10/28/11
SMP-03 10-Terminal Ceramic Surface-mount Case
5 x 7 mm Nominal Footprint
Case Dimensions
Dimension
mm
Nom
7.00
5.00
1.65
0.60
2.54
1.0
Inches
Nom
Min
6.80
4.80
-
Max
7.20
5.20
2.00
0.73
2.67
1.13
5.13
3.13
1.40
Min
0.268
0.189
-
Max
A
B
C
D
E
H
J
0.276
0.197
0.065
0.024
0.100
0.039
0.197
0.118
0.050
0.283
0.205
0.079
0.029
0.105
0.044
0.202
0.123
0.055
Recommended PCB Footprint
0.47
2.41
0.87
4.87
2.87
1.14
0.019
0.095
0.034
0.192
0.113
0.045
5.00
3.00
1.27
K
P
Electrical Connections
Connection
Terminals
Port 1
Input or Balanced Input
Output or Balanced Output
Ground
Single-ended or Differential Operation
10
5
Port 2
All others
M
a
t
c
h
i
n
g
C
i
r
c
u
i
t
Case Materials
2
2
p
F
2
2
p
F
O
u t p u t
h
I n p u t
0 o h m
Solder Pad
Plating
1
0
5
5
0
o
m
0.3 to 1.0 µm Gold over 1.27 to 8.89 µm Nickel
5
4
7 0
H
4
7
0
S
F
2
2
4
2
B
n
n
H
Lid Plating
Body
2.0 to 3.0 µm Nickel
Al O Ceramic
A
l
l
O
t
h
e
r
P
i
n
s
2
3
Pb Free
C
E
B
H
H
J
D
A
P
K
www.RFM.com E-mail: info@rfm.com
© 2010-2011 by RF Monolithics, Inc.
Page 4 of 5
SF2242B - 10/28/11
Tape and Reel Specifications
“B”
Nominal Size
Quantity Per Reel
Inches
millimeters
178
7
500
13
330
2000
See Detail "A"
16.0
2.0
COMPONENT ORIENTATION and DIMENSIONS
Carrier Tape Dimensions
Ao
Bo
5.6 mm
7.6 mm
2.0 mm
8.0 mm
16.0 mm
Ko
Pitch
W
PIN #1
USER DIRECTION OF FEED
www.RFM.com E-mail: info@rfm.com
© 2010-2011 by RF Monolithics, Inc.
Page 5 of 5
SF2242B - 10/28/11
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