Datasheet > SF2218D

SF2218D

更新时间： 2024-11-29 11:59:07

品牌	Logo	应用领域
RFM		/
页数	文件大小	规格书
4页	640K
描述
425 MHz SAW Filter

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中文翻译

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数据手册

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SF2218D 数据手册

Preliminary

SF2218D

• Low Insertion Loss

• 3.8 X 3.8 mm Surface-mount Case

• Single-ended Input and Differential Output

• Complies with Directive 2002/95/EC (RoHS)

425 MHz

SAW Filter

Absolute Maximum Ratings

Rating

Value

+10

Units

dBm

VDC

°C

Maximum Incident Power in Passband

Maximum DC Voltage on any Non-ground Terminal

Storage Temperature Range in Tape and Reel

Suitable for Lead-free Soldering - Maximum Soldering Temperature

-40 to +85

260°C for 30 s

SM3838-8

Electrical Characteristics

Characteristic

Sym

Notes

Min

Typ

Max

5.0

Units

MHz

Nominal Center Frequency

Insertion Loss, 425 MHz

3 dB Bandwidth

425

MHz

3dB

Passband Amplitude Ripple, 420 to 430 MHz

Attenuation Referenced to 0 dB:

275 to 300 MHz

1.0

2.1

P-P

299 to 335 MHz

334 to 360 MHz

359 to 385 MHz

386 to 400 MHz

400 to 410 MHz

455 to 484 MHz

485 to 494 MHz

495 to 575 MHz

Single-ended Source Impedance

Balanced Load Impedance

Operating Temperature Range

Case Style

ohm

°C

100

-20

+70

SM3838-8 3.8 x 3.8 mm Nominal Footprint

RFM 956 YWWS

Lid Symbolization (Y=year, WW=week, S=shift)

CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.

Notes:

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.

Rejection is measured as attenuation referenced to 0 dB. Rejection in final user application is dependent on PCB layout and external impedance matching

design. See Application Note No. 42 for details.

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.

US and international patents may apply.

RFM, stylized RFM logo, and RF Monolithics, Inc. are registered trademarks of RF Monolithics, Inc.

www.RFM.com E-mail: info@rfm.com

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