SF2190B Datasheet, PDF (1/5 Pages) RF Monolithics, Inc – Small Size

Preliminary
• Small Size
• Hermetic 5 X 7 mm Surface-mount Case
• Differential Input/Output
• Complies with Directive 2002/95/EC (RoHS) _Pb
SF2190B
138 MHz
SAW Filter
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Maximum DC Voltage Between any Two Terminals
Operating Temperature Range
Storage Temperature Range in Tape and Reel
Maximum Soldering Profile
Value
Units
+10
dBm
3
VDC
-40 to +85
°C
-40 to +85
°C
265°C for 10 s
SMP-03
Electrical Characteristics
Characteristic
Center Frequency
Insertion Loss
1 dB Bandwidth
3 dB Bandwidth
Amplitude Ripple Across 1 dB Bandwidth
Upper -35 dB Band Edge
Lower -35 dB Band Edge
Ultimate Rejection
Temperature Coefficient
Source Impedance, Balanced
Load Impedance, Balanced
Case Style
Lid Symbolization (Y=year, WW=week, S=shift) See note 3
Sym
F_C
IL
Notes
Min
Typ
Max
138
18.8
21.0
60
63
65.4
0.6
1.2
176
179
97
101
35
40
-72
50
50
SMP-03 5 X 7 mm Nominal Footprint
RFM SF2190B YWWS
Units
MHz
dB
MHz
MHz
dB_P-P
MHz
MHz
dB
ppm/°C
ohm
ohm
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1. Unless noted otherwise, all specifications apply over the operating temper-
ature range with filter soldered to the specified demonstration board with
impedance matching to 50 Ω and measured with 50 Ω network analyzer. A
dB offset exists for RFM because of the loss introduced by using trans-
formers on the Input and Output.
2. 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.
3. "LRIP" or "L" after the part number indicates "low rate initial production"
and "ENG" or "E" indicates "engineering prototypes."
4. The design, manufacturing process, and specifications of this filter are
subject to change.
5. 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.
6. US and international patents may apply.
7. RFM, stylized RFM logo, and RF Monolithics, Inc. are registered
trademarks of RF Monolithics, Inc.
www.RFM.com E-mail: [e-mail]
©2009-2010 by RF Monolithics, Inc.
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SF2190B - 3/23/10