RF1432C RFM, RF1432C Datasheet

Filters 319.50MHz Narrowband Receiver Front End

RF1432C

Manufacturer Part Number

RF1432C

Description

Filters 319.50MHz Narrowband Receiver Front End

Manufacturer

RFM

Datasheet

1.RF1432C.pdf (3 pages)

Specifications of RF1432C

Product

RF SAW Filters

Frequency

319.5 MHz

Frequency Range

319.42 MHz to 319.58 MHz

Impedance

3.97 KOhms, 2.56 KOhms

Operating Temperature Range

- 40 C to + 85 C

Voltage Rating

12 V

Termination Style

SMD/SMT

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

RF1432C

Manufacturer:

RFMD

Quantity:

5 000

Current page: 1 of 3
Download datasheet (87Kb)

Electrical Characteristics

www.RFM.com

Notes:

• Ideal Front-End Filter for European Wireless Receivers

• Low-Loss, Coupled-Resonator Quartz Design

• Simple External Impedance Matching

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

The RF1432C is a low-loss, compact and economical surface-acoustic-wave (SAW) filter designed to provide

front-end selectivity in 319.500 MHz receivers. Recevier designs using this filter include superhet with

10.7 MHz or 500 kHz IF, direct conversion and superregen.

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.

Characteristic

Center Frequency at 25°C

Insertion Loss

3 dB Bandwidth

Rejection

Temperature

Frequency Aging

Impedance @ FC

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

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

VSWR

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.

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 without notice.

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.

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

E-mail: info@rfm.com

is defined as the midpoint between the 3dB frequencies.

Tolerance from 319.500 MHz

at f

Ultimate

Operating Case Temperature

Turnover Temperature

Turnover Frequency

Frequency Temperature Coefficent

Absolute Value during the First Year

OUTPUT Z

Absolute Frequency

INPUT Z

[1 - FTC (T

- 21.4 MHz (Image)

- 10.7 MHz (LO)

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

= R

OUT

- T

= R

)

// C

OUT

// C

OUT

Sym

FTC

IfAI

OUT

Notes

1, 2

3, 4

. The nominal frequency at any case temperature, T

Minimum

319.420

500

-40

621 // DATECODE

3.97k

2.56k

Typical

0.032

600

. Note that insertion loss, bandwidth,

1.8

319.500 MHz

// 4.37pF

// 4.27pF

SAW Filter

RF1432C

SM5050-8 Case

Maximum

319.580

5 x 5

+85

±80

800

2.8

test system with

RF1432C - 3/21/08

ppm/°C

ppm/yr

Page 1 of 3

Units

MHz

kHz

°C

, may

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RF1432C Summary of contents

Page 1

... Simple External Impedance Matching • Complies with Directive 2002/95/EC (RoHS) The RF1432C is a low-loss, compact and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 319.500 MHz receivers. Recevier designs using this filter include superhet with 10.7 MHz or 500 kHz IF, direct conversion and superregen. ...

Page 2

... MHz 13 Jun 2006 05:49:08 1_ 0.000 000 MHz Max REF=1 BW: .608 859 MHz cent: 319.496746 MHz Q: 524.75 1_ loss: -1.8101 dB 4 SPAN 2.000 000 MHz 0.000 000 MHz REF=1 2_ -58.838 dB -10.7 MHz 3_ -58.007 dB -21.4 MHz SPAN 50.000 000 MHz Page RF1432C - 3/21/08 ...

Page 3

... Max 0.205 0.205 0.067 0.086 0.05 0.028 0.106 82 nH Input Page RF1432C - 3/21/08 ...

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