RF1396C - RFM (RF Monolithics, Inc.)

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Electrical Characteristics

Characteristic Sym Notes Minimum Typical Maximu

mUnits

Center Frequency at 25°C Absolute Frequency fc1, 2 434.420 MHz

Tolerance from 434.420 MHz ∆fC±160 kHz

Insertion Loss IL 1 3.0 5.0 dB

3 dB Bandwidth BW31, 2 500 700 800 kHz

Rejection at fc - 21.4 MHz (Image)

140 - dBat fc - 10.7 MHz (LO) 30 -

Ultimate -

Temperature Operating Case Temp. TC

3, 4

-40 +85 °C

Turnover Temp erature TO15 25 35 °C

Turnover Frequency fOfcMHz

Freq. Temp. Coefficient FTC 0.032 ppm/°C2

Frequency Aging Absolute Value during the First Year |fA| 5 ≤10 ppm/yr

Impedance @ fc Input ZIN = RIN//CIN Z

IN 1227 Ω // 3.3 pF

Output ZOUT = ROUT//COUT ZOUT 227 Ω // 3.3 pF

Lid Symbolization (Y=year WW=week S=Shift) 427 YWWS

Standard Reel Quantity 7 Incn Reel 500 Pieces/Reel

Standard Reel Quantity 13 Inch Reel 3000 Pieces/Reel

• 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 RF1396C is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter

designed to provide front-end selectivity in 434.420 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

Europe under ETSI I-ETS 300 220.

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

greater th an 40 dB, of the LO and i mage spuri ous respon ses of su perhet recei vers 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.

434.4 2 MHz

SAW Filter

RF1396C

SM5050-8 Case

5 x 5

CAUTION: Electrostati c Sensitive Devi ce. Observe p recautions for handling.

Notes:

1. 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, fc. Note that insertion loss and band-

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

2. The frequency fc is defined as the midpoint between the 3dB frequencies.

3. Where noted specifications apply over the entire specified operating temperature range.

4. The turnover temperature, TO, is the temperature of maximum (or turnover) frequency, fo. The nominal frequency at any case temperature, Tc, may

be calculated from: f = fo[1 - FTC (To-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

above +65°C. Typically, aging is greatest the first year after m anufacture, decre asing significantly in subsequent years.

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 produc t must be approved by the appropriate government agency prior to manufacture or sale.

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Absolute Maximum Ratings

Rating Value Units

Input Power Level 10 dBm

DC V oltage 12 VDC

S torage Temperature -40 to +85 °C

Soldering Temperature (10 seconds / 5 cycles max.) 260 °C

Pin Connection

1 Input Ground

2 Input

3 to be Grounded

4 Case Ground

5 Output

6 Output Ground

7 to be Grounded

8 Case Ground

Matching Circuit to 50Ω

Electri cal Conne ction s

Dimension mm Inches

Min Nom Max Min Nom Max

A4.8 5.0 5.2 0.189 0.197 0.205

B4.8 5.0 5.2 0.189 0.197 0.205

C1.7 0.067

D2.08 0.082

E1.17 0.046

F0.64 0.025

G2.39 2.54 2.69 0.094 0.100 0.106

Case Dimensions

8Input

Output