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RF1284

Order Number RF1284

  • 319.5MHz SAW Filter
  • Bandwidth: 0.5 MHz @ 3 dB Passband
  • Max Insertion Loss: 3.0000 dB
  • Tolerance / Specification: +/-80 @ Jitter

High Performance Features Simplify Design

  • to provide front-end selectivity in 319.5MHz Wireless Receivers
  • Low-Loss, Coupled-Resonator Quart Design
  • Simple External Impedance Matching
  •  

    Explanation of Product Status

    Under Development Products under development
    Please contact us for product availability and sample lead-time.
    In Production Product is in mass production.
    to be discontinued Not recommended for new designs. We are evaluating the schedule for the discontinuing of production of this item. Contact Murata or refer to the website for details of product supply and possible alternative product information.
    Discontinued product Production of this product has stopped. Contact Murata for inventory availability and possible alternative products.
    Recommended product This product is particularly recommended among our products currently in production.
    New product It's new item.

RF1284

The RF1284 is a low-loss, compact and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 319.508 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. Murata'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.
Annual Volume 2500
Product Type Filter
Frequency 319.5MHz
Frequency MHz (min) 319.4200
Frequency MHz (max) 320.5800
Bandwidth MHz (typical) 0.600
Bandwidth (max) 0.800
Insertion Loss (typ) 2.00 dB
Insertion Loss (max) 3.00 dB
Tuning Range +/-80
Operating Temperature Range -35 to +85
Operating Temperature °C (min) -35
Operating Temperature °C (max) 85
Mounting Type 3-Lead, Low-Profile Pin
Package TO39-3 Can
Lid Symbol RF1284
Dimension 9.3 mm
Technology SAW
RoHs Compliant Yes
ISO9001 Yes
TS16969 Yes
Document Statement Visit the Support section for Application Notes, Reference Designs, White Papers, and more information about designing products using Murata SAW filters.
Data Sheet Download PDF
Data Sheet Date Mar 21, 2008
RoHs File Download PDF
Key Markets Automotive | Retail | Consumer Electronics and Fitness | Commercial and Residential Building Automation | Smart Grid & AMR
Key Applications Automotive Keyless Entry | Tire Pressure Monitoring | Wireless Point-of-Sale Terminals | Data Link Equipment | Peripherals | Remote Bar Code Data Entry | Bar Code Readers | Identification Tags | Home Automation | Door and Gate Openers | Personal and Home Security | Automated Meter Reading | Consumer Sports
Applications Characteristics For the Receivers within Internet of Things and M2M wireless remote control and security devices: | - Operating under ETSI-ETS 300 220 | - That require rejection of strong out-of-band signals (needing, for example, typical out-of-band rejection of 50 dB); | - That may require special rejection at -10.7MHz for local oscillator rejection and special rejection at -21.4MHz for image spurious response for typical superhet receivers.
Order Number RF1284
Packaging Antistatic Tube
Shipping Size 50 Units / Tube