®

RF Monolithics, Inc.

Phone: (972) 233-2903

Fax: (972) 387-8148

E-mail: info@rfm.com

Page 1 of 3

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.

SF1146B-121604

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.

Tape and Reel Standard ANSI / EIA 481.

7.

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.

8.

US and international patents may apply.

9.

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

10.

©Copyright 1999, RF Monolithics Inc.

11.

Electrostatic Sensitive Device. Observe precautions for handling.

Electrical Characteristics

Characteristic

Sym

Notes

Min

Typ

Max

Units

Nominal Center Frequency

1

499.25

MHz

Passband

Insertion Loss at fc

IL

3.5

dB

1.5 dB Passband

1, 2

±15

kHz

4.0 dB Passband

30

MHz

Group Delay Variation over fc ±250 kHz

GDV

177

250

Rejection

fc±1.5 MHz

1, 2, 3

5

dB

fc±6.0 MHz

20

fc±50 MHz

50

Operating Temperature Range

1

-40

+85

°C

Differential Input and Output Impedance after matching

50 ohms

Case Style

6

SMP-03 7 x 5 mm Nominal Footprint

Lid Symbolization (YY=year, WW=week, S=shift) See note 4

RFM SF1146B YYWWS

SMP-03

•

Low Insertion Loss

•

5.0 X 7.0 mm Surface-Mount Case

•

Complies with Directive 2002/95/EC (RoHS)

Absolute Maximum Ratings

Rating

Value

Units

Maximum Incident Power in Passband

+10

dBm

Max. DC voltage between any 2 terminals

30

VDC

Storage Temperature Range

-40 to +85

°C

Suitable for lead-free soldering - Max Soldering Profile

260°C for 30 s

499.25 MHz

SAW Filter

SF1146B

Connection

Terminals

Port 1 Hot

10

Port 1 Ground Return

1

Port 2 Hot

5

Port 2 Ground Return

6

Case Ground

All Others

Electrical Connections