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
- Description
- Specs
- Documents
- Applications
- Purchase
| 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. |
| Product Type | Filter |
| Product Status | recommended in production |
| Frequency | 319.5MHz |
| Frequency MHz (min) | 319.4200 |
| Frequency MHz (max) | 320.5800 |
| Bandwidth Measured | MHz |
| Bandwidth MHz (typical) | 0.600 |
| Bandwidth (max) | 0.800 |
| Passband Measured | dB |
| Insertion Loss (typ) | 2.0000 |
| Insertion Loss (max) | 3.0000 |
| Tuning Range | +/-80 |
| Specification Temperature Range | -35 to +85 |
| Specification Temperature °C (min) | -35 |
| Specification Temperature °C (max) | 85 |
| Mounting Type | 3-Lead, Low-Profile Pin |
| Package | TO39-3 Can |
| Lid Symbol | RF1284 |
| Dimension | 9.3 mm |
| Diameter | 9.3 |
| Power Class | No |
| 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 | View |
| 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 |
| Shipping Size | 50 Units / Tube |