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.
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©2010 by RF Monolithics, Inc.
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SF2243A - 12/13/10
RFM [ RF MONOLITHICS, INC ]
