®
Preliminary
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 1
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF2030A-10/25/07
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. "LRIP" or "L" after the part number indicates "low rate initial production" and "ENG" or "E" indicates "engineering prototypes."
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.
8. RFM, stylized RFM logo, and RF Monolithics, Inc. are registered trademarks of RF Monolithics, Inc.
9. ©Copyright 1999, RF Monolithics Inc.
10. Electrostatic Sensitive Device. Observe precautions for handling.
Electrical Characteristics
Characteristic Sym Notes Min Typ Max Units
Nominal Frequency fN243.95 MHz
Nominal Insertion Attenuation 5dB
Pass band width at 3 dB (Relative to Fn) B3dB kHz
Point of left side -150
Point of right side +150
Amplitude Ripple (peak-valley)
FN - 110 kHz ---- Fn + 110kHz 0.6 1.0 dB
Group Delay Ripple FN - 110 kHz ---- Fn + 110kHz 0.5 µsec
Relative Attenuation (Relative to Fn)
Fn - 21.6 MHz 60 dB
Fn - 21.4 MHz 60 dB
Fn - 10.8 MHz 55 dB
Fn - 1.2 MHz 30 dB
Fn - 0.7 MHz 30 dB
Fn - 0.6 MHz 30 dB
Fn - 0.5 MHz 15 dB
Fn + 0.5 MHz 15 dB
Fn + 0.6 MHz 30 dB
Fn + 0.7 MHz 30 dB
Fn + 1.2 MHz 30 dB
Fn + 10.8 MHz 55 dB
Lid Symbolization (YY=year, WW=week, S=shift) See note 4 RFM SF2030A YYWWS
SM1154-14
•Designed for PHS BTS IF Applications
•Excellent Size-to Performance Ratio
•Hermetic 11.5 X 4.0 mm Surface-Mount Case
•Complies with Directive 2002/95/EC (RoHS)
Maximum Ratings Rating Value Units
Operating Temperature Range -15 to +80 °C
Storage Temperature Range -40 to +85 °C
Maximum DC Voltage 30 V
Maximum Source Power +15 dBm
Maximum Soldering Profile 260°C for 30sec
243.95 MHz
SAW Filter
SF2030A
Pb