SF2139D Datasheet, PDF (1/6 Pages) RF Monolithics, Inc – 177.0 MHz SAW Filter

Preliminary
• Low Insertion Loss
• 3.8 X 3.8 X 1.0 mm Surface Mount Case
• Complies with Directive 2002/95/EC (RoHS)
Pb
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Maximum DC Voltage Between any Two Terminals
Storage Temperature Range in Tape and Reel
Suitable for Lead-free Soldering - Maximum Soldering Profile
Value
Units
+10
dBm
30
VDC
-40 to +85
°C
260 °C for 30 s
SF2139D
177.0 MHz
SAW Filter
Electrical Characteristics
Characteristic
Center Frequency
Source Impedance, Single Ended
Load Impedance, Single Ended
1 dB Bandwidth
40 dB Bandwidth
Template on the Amplitude,
10 to 149 MHz
Reference is Minimum IL
209 to 350 MHz
Maximum Insertion Loss
Amplitude Variation over 20 MHz Passband
Group Delay Variation over 20 MHz Passband
Absolute Group Delay at f_C
Input/Output Return loss over 20 MHz Passband
Operating Temperature
Sym
f_C
BW₁
BW₄₀
IL_MAX
Case Style
Lid Symbolization (Y=year, WW=week, S=shift) dot=pin 1 indicator
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
SM3838-6
Notes
Min
1
20
38
37
5
-40
Typ
177
50
50
23.8
40
40
39
7.0
1.1
15
0.308
7
Max
60
9.0
1.5
80
+85
SM3838-6 3.8 x 3.8 mm Nominal Footprint
TBD, YWWS
1000 Pieces/Reel
3000 Pieces/Reel
Units
MHz
Ω
Ω
MHz
MHz
dB
dB
dB_P-P
ns_P-P
µs
dB
°C
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 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 by RF Monolithics, Inc.
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SF2139D - 7/9/09