RF3181E RFM, RF3181E Datasheet

RF3181E

Manufacturer Part Number

RF3181E

Description

NARROWBAND FILTER, SM3030-6

Manufacturer

RFM

Datasheet

1.RF3181E.pdf (2 pages)

Specifications of RF3181E

Frequency

916.5MHz Center

Bandwidth

750kHz

Filter Type

Bandpass

Insertion Loss

2.7dB

Applications

Wireless

Package / Case

0.118" L x 0.118" W x 0.049" H (3.00mm x 3.00mm x 1.25mm)

Mounting Type

Surface Mount

Product

RF SAW Filters

Impedance

54.2 KOhms, 52.8 KOhms

Termination Style

SMD/SMT

Operating Temperature Range

- 40 C to + 125 C

Voltage Rating

12 V

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

583-1066-2

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

RF3181E

Manufacturer:

RFMD

Quantity:

5 000

Current page: 1 of 2
Download datasheet (197Kb)

Electrical Characteristics

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

Notes:

• Ideal Front-end Filter for 916.5 MHz Wireless Receivers

• Low-loss, Coupled-resonator Quartz Design

• Simple External Impedance Matching

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

The RF3181E is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide

front-end selectivity in 916.5 MHz receivers. Receiver designs using this filter include superhet with 10.7 MHz

IF, direct conversion and superregen. Typical applications of these receivers are wireless remote-control and

security, data telemetry, and meter reading devices operating in the USA under FCC Part 15 and in Canada

under DoC RSS-210.

This coupled-resonator filter (CRF) uses selective null placement to provide suppression, typically greater

than 40 dB, of the LO and image spurious responses of superhet receivers with 10.7 MHz IF. RFM’s advanced

SAW design and fabrication technology is utilized to achieve high performance and very low loss with simple

external impedance matching (not included).

Characteristic

Center Frequency at 25°C

Insertion Loss

3 dB Bandwidth

Rejection relative to Min IL:

Temperature

Frequency Aging

Impedance @ f

Lid Symbolization (in addition to Lot and/or Date Codes)

Standard Reel Quantity

Unless noted otherwise, all measurements are made with the filter installed in the specified test fixture which is connected to a 50 Ω test system with

VSWR ≤ 1.2:1. The test fixture L and C are adjusted for minimum insertion loss at the filter center frequency, f

width and passband shape are dependent on the impedance matching component values and quality.

The frequency f

Where noted specifications apply over the entire specified operating temperature range of -40 to 90 °C.

The turnover temperature, T

be calculated from: f = f

Frequency aging is the change in fc with time and is specified at +65 °C or less. Aging may exceed the specification for prolonged temperatures

above +65°C. Typically, aging is greatest the first year after manufacture, decreasing significantly in subsequent years.

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

One or more of the following U.S. Patents apply: 4,54,488, 4,616,197, and others pending.

All equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale.

Tape and Reel Standard for ANSI/EIA 481.

CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.

is defined as the midpoint between the 3dB frequencies.

[1 - FTC (T

Absolute Frequency

Tolerance from 916.50 MHz

Freq. Temp. Coefficient

Absolute Value during the First Year

Input Z

Output Z

13 Inch Reel

, is the temperature of maximum (or turnover) frequency, f

7 Inch Reel

OUT

= R

- T

= R

)

OUT

940 to 1100 MHz

OUT

895 to 906 MHz

906 to 910 MHz

922 to 925 MHz

925 to 933 MHz

933 to 940 MHz

10 to 895 MHz

Sym

FTC

|fA|

∆f

OUT

Notes

1, 2, 3

1, 3

3, 4

. The nominal frequency at any case temperature, T

Minimum

500

Typical

916.5

0.032

3000 Pieces/Reel

54.2kΩ || 1.44pF

52.8kΩ || 1.30pF

500 Pieces/Reel

750

≤10

. Note that insertion loss and band-

2.7

698 || YWWS

SAW Filter

916.5 MHz

RF3181E

SM3030-6 Case

3.0 x 3.0

Maximum

900

4.0

RF3181E - 2/10/11

Page 1 of 2

ppm/yr

Units

ppm/

MHz

kHz

°C

, may

Related parts for RF3181E

RF3181E Summary of contents

Page 1

... Simple External Impedance Matching • Complies with Directive 2002/95/EC (RoHS) The RF3181E is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 916.5 MHz receivers. Receiver designs using this filter include superhet with 10.7 MHz IF, direct conversion and superregen. Typical applications of these receivers are wireless remote-control and security, data telemetry, and meter reading devices operating in the USA under FCC Part 15 and in Canada under DoC RSS-210 ...

Page 2

... RF3181E - 2/10/ Max 0.123 0.123 0.054 0.040 0.115 0.068 0.038 0.064 0.029 0.056 Page ...

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