RF1183 RF Monolithics, RF1183 Datasheet

RF1183

Manufacturer Part Number

RF1183

Description

Frequency = 310.0 ;; Description = RF Filter

Manufacturer

RF Monolithics

Datasheet

1.RF1183.pdf (2 pages)

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Notes:

RF Monolithics, Inc.

RFM Europe

•

The RF1183 is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide front-end

selectivity in 310.0 MHz receivers. Receiver designs using this filter include superhet with 10.7 MHz or 500 kHz IF, direct

conversion, and superregen. Typical applications of these receivers are wireless remote-control and security devices

operating in the USA under FCC Part 15, in Canada under DoC RSS-210, and in Italy.

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). Quartz construction provides excellent frequency stability over a wide temperature range.

Electrical Characteristics

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

2. The frequency f

3. Unless noted otherwise, specifications apply over the entire specified operating temperature range.

4. The turnover temperature, T

5. 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

6. The design, manufacturing process, and specifications of this device are subject to change without notice.

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

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

Center Frequency at 25°C

Insertion Loss

3 dB Passband

Rejection

Temperature

Frequency Aging

External Impedance

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

VSWR

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

be calculated from: f = f

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

Ideal Front-End Filter for 310.0 MHz Wireless Receivers

Low-Loss, Coupled-Resonator Quartz Design

Simple External Impedance Matching

Rugged TO39 Hermetic Package

CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.

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

Phone: (972) 233-2903

Phone: 44 1963 251383

is defined as the midpoint between the 3dB frequencies.

Characteristic

Tolerance from 303.825

at f

Ultimate

Operating Case Temp.

Turnover Temperature

Turnover Frequency

Freq. Temp. Coefficient

Absolute Value during the First Year

Series Inductance

Shunt Capacitance

Absolute Frequency

[1 - FTC (T

- 21.4 MHz (Image)

- 10.7 MHz (LO)

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

- T

)

Fax: (972) 387-8148

Fax: 44 1963 251510

Sym

FTC

|fA|

Notes

1, 2

3, 4

. The nominal frequency at any case temperature, T

Minimum

309.020

500

-35

RFM RF1183

Typical

0.032

E-mail: info@rfm.com

http://www.rfm.com

RF1183-082701

600

1.4

. Note that insertion loss, bandwidth,

SAW Filter

310.0 MHz

RF1183

TO39-3 Case

Maximum

310.080

+85

±80

800

5.0

test system with

ppm/°C

ppm/yr

Page 1 of 2

Units

MHz

kHz

°C

, may

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