sf2254e RF Monolithics, Inc., sf2254e Datasheet

sf2254e

Manufacturer Part Number

sf2254e

Description

872.5 Mhz Saw Filter

Manufacturer

RF Monolithics, Inc.

Datasheet

1.SF2254E.pdf (4 pages)

Current page: 1 of 4
Download datasheet (776Kb)

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

Electrical Characteristics

Electrical Connections

• Low-loss RF SAW Filter

• Miniature 3 x 3 mm SMD Package

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

Absolute Maximum Ratings

Rating

Case Style

Lid Symbolization (Y=year, WW=week, S=shift) dot=pin 1 indicator

Standard Reel Quantity

Connection

Input

Output

Case Ground

Input Power Level

DC Voltage on any Non-grounded Terminal

Operating Temperature Range

Storage Temperature Range in Tape and Reel

Maximum Soldering Profile, 5 cycles/10 seconds maximum

Characteristic

Center Frequency

Insertion Loss, 865 to 880 MHz

Amplitude Ripple, 865 to 880 MHz

VSWR, 865 to 880 MHz

Attenuation, Referenced to 0 dB:

Source Impedance

Load Impedance

10 to 820 MHz

820 to 835 MHz

912 to 927 MHz

927 to 972 MHz

972 to 1300 MHz

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.

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.

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.

CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.

Notes:

Reel Size 13 inch

Reel Size 7 inch

Terminals

All others

Sym

-30 to +85

-40 to +85

Value

+10

265

Notes

SM3030-6 3.0 x 3.0 mm Nominal Footprint

Units

dBm

°C

Min

3000 Pieces/Reel

500 Pieces/Reel

A01, YWWS

872.5

1.5:1

Typ

2.7

0.7

SAW Filter

872.5 MHz

SF2254E

SM3030-6

Max

2.0:1

3.5

1.5

SF2254E - 11/18/10

Page 1 of 4

Units

MHz

Ω

P-P

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