RF1411D - RFM (RF Monolithics, Inc.)

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Electric al Charac teristics

Characteristic Sym Notes Minimum Typical Maximum Units

Center Frequency @ 25°C fC1, 2, 3 869.2625 MHz

I.L. 1, 3 3.3 4.5 dB

PassBand (relative to ILmin) 868.9125 -869.6125 0.4 1.0 dB

Pass Bandwidth (relative to IL min) BW31, 3 1250 kHz

Rejection (relative to ILmin) 10-700 MHz

1, 3

50 55

700-842 MHz 35 40

842-864 MHz 25 28

864-866 MHz 15 24

872-879 MHz 8 13

879-909 MHz 15 20

909-1000 MHz 40 45

Temperature Coeff 0.032 ppm/

°C2

Operating Temperature Range -45 +85 °C

Impedance @ fc Input ZIN = RIN ll CIN ZIN 1117Ω ll 3.7pf

Output ZOUT = ROUT ll COUT ZOUT 1117Ω ll 3.7pf

Lid Symbolization (in addition to Lot and/or Date Codes) 512 // YWWS

S t andard Reel Quantity 7 Inch Reel 8500 Pieces/Reel

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 RF141 1D is a low-loss, compact, and economical surface-acoustic-wave (SAW) fi lter designed to provide

front-end selectivity in 869.2625 MHz receivers. Receiver designs using this filter include superhet IF, direct

conversion and superregen. Typical applicat ions of these receivers are wireless remote-control and security

devices operating in Europe under ETSI I-ETS 300 220, in Germany under FTZ 17 TR 2100, in the United

Kingdom under DTI MPT 1340 (for automotive only), in France under PTT Specifications ST/PAA/TPA/AGH/

1542, and in Scandinavia.

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).

869.2625 MHz

SAW Filter

RF1411D

CAUTION: Electrostatic Sensitive Device. Observe precautions 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 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 of -45°C to +85°C.

4. 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.

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

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

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

8. Tape and reel standard per ANSI / EIA 481.

SM3838-8 Case

3.8 x 3.8

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Absolute Maximum Ratings

Rating Value Units

Input Power Level +10 dBm

DC V oltage 12 VDC

S torage Temperature -45 to +85 °C

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

Pin Connection

1 Input

2 Input Ground

3 Ground

4 Case Ground

5 Output

6 Output Ground

7 Ground

8 Case Ground

Matching Circuit to 50Ω

Electrical Connections

Input

Output

5pf

12nH

Case Dimensions

Dimension mm Inches

Min Nom Max Min Nom Max

A3.6 3.8 4.0 0.14 0.15 0.16

B3.6 3.8 4.0 0.14 0.15 0.16

C1.00 1.20 1.40 0.04 0.05 0.055

D0.95 1.10 1.25 0.033 0.043 0.05

E0.90 1.0 1.10 0.035 0.04 0.043

F0.50 0.6 0.70 0.020 0.024 0.028

G2.39 2.54 2.69 0.090 0.100 0.110

H1.40 1.75 2.05 0.055 0.069 0.080