Datasheet > SF2248E

SF2248E

更新时间： 2024-11-29 11:59:07

品牌	Logo	应用领域
RFM		LTE
页数	文件大小	规格书
4页	217K
描述
315 MHz SAW Filter

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数据手册

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SF2248E 数据手册

SF2248E

• Low-loss RF Filter for 315 MHz Applications

• No Matching Required for Operation in 50  Environment

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

315 MHz

SAW Filter

Absolute Maximum Ratings

Rating

Value

Units

dBm

Input Power Level

DC Voltage on any Non-ground Terminal

Operating Temperature Range

-40 to +85

265

°C

Storage Temperature Range in Tape and Reel

Maximum Soldering Profile, 5 Cycles/10 seconds Maximum

°C

SM3030-6

Electrical Characteristics

Characteristic

Sym

Notes

Min

Typ

Max

Units

f_C

Center Frequency

315

MHz

3 dB Bandwidth

IL_MAX

Insertion Loss, 314.7 to 315.3 MHz

Amplitude Ripple, 314.7 to 315.3 MHz

VSWR

1.52

0.4

2.50

1.2

dB_P-P

1.4:1

1.6:1

Attenuation Referenced to IL_MAX

270.0 to 286.0 MHz

293.0 to 293.9 MHz

304.0 to 304.6 MHz

325.4 to 326.0 MHz

336.1 to 337.0 MHz

357.5 to 358.7 MHz

Source Impedance

Load Impedance

Z_S

Z_L



Case Style

SM3030-6 3.0 x 3.0 mm Nominal Footprint

986, YWWS

Lid Symbolization, Y=year, WW=week, S=shift, Dot=pin 1 indicator

Standard Reel Quantity

Reel Size 7 Inch

Reel Size 13 Inch

500 Pieces/Reel

3000 Pieces/Reel

Electrical Connections

Connection

Input

Terminals

Output

Case Ground

All others

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  and measured with 50  network analyzer.

Unless noted otherwise, all frequency specifications are referenced to the nominal center frequency, fc.

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.

The design, manufacturing process, and specifications of this filter are subject to change.

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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