Datasheet > SF2188D

SF2188D

更新时间： 2024-01-30 13:05:20

品牌	Logo	应用领域
RFM		/
页数	文件大小	规格书
4页	168K
描述
340 MHz SAW Filter

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数据手册

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SF2188D 数据手册

SF2188D

• No External Matching Required

• 3.8 x 3.8 x 1.4 mm Surface-mount Package

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

340 MHz

SAW Filter

Absolute Maximum Ratings

Rating

Value

+10

Units

dBm

VDC

°C

Maximum Incident Power in Passband

Maximum DC Voltage between any Two Terminals

Storage Temperature Range

-40 to +85

Suitable for Lead-free Soldering - Maximum Soldering Profile

260°C for 30 s

SM3838-8

Electrical Characteristics

Characteristic

Nominal Center Frequency

Insertion Loss

Sym

Notes

Min

339

Typ

340

2.0

Max

341

3.0

Units

MHz

1 dB Bandwidth

MHz

Passband Ripple, 336 to 344 MHz

Absolute Attenuation (referenced from 0 dB)

10 to 300 MHz

0.4

1.0

P-P

-36

300 to 320 MHz

375 to 800 MHz

Frequency Temperature Coefficient

Source Impedance

ppm/°C

ohm

°C

Load Impedance

Operating Temperature Range

Case Style

-40

+85

SM3838-8 3.8 x 3.8 mm Nominal Footprint

RFM 876 YWWS

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

Electrical Connections

Connection

Port 1

Terminals

Port 2

Case Ground

All others

CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.

Notes:

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.

Unless noted otherwise, all frequency specifications are referenced to the

nominal center frequency, fc.

Rejection is measured as absolute attenuation (0 dB reference). Rejection

in final user application is dependent on PCB layout and external

impedance matching design. See Application Note No. 42 for details.

"LRIP" or "L" after the part number indicates "low rate initial production"

and "ENG" or "E" indicates "engineering prototypes."

The design, manufacturing process, and specifications of this filter are

subject to change.

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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