RF1408D
Order Number RF1408D
- 447.7MHz SAW Filter
- Bandwidth: 0.5 MHz @ 3 dB Passband
- Max Insertion Loss: 2.0000 dB
Features Plus USA, Canada and Italy Operation Simplify Design and BOM
- to provide front-end selectivity in 447.7MHz Wireless Receivers
- Low-Loss, Coupled-Resonator Quart Design
- Simple External Impedance Matching
- Description
- Specs
- Documents
- Applications
- Purchase
| The RF1408D is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 447.7 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 remotecontrol and security devices (especially for automotive keyless entry) operating in the USA under FCC Part 15, in Canada under RSS-210, and in Italy 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. |
| Product Type | Filter |
| Product Status | recommended in production |
| Frequency | 447.7MHz |
| Bandwidth Measured | MHz |
| Bandwidth MHz (typical) | 0.840 |
| Bandwidth (max) | 1.100 |
| Passband Measured | dB |
| Insertion Loss (typ) | 1.5000 |
| Insertion Loss (max) | 2.0000 |
| Specification Temperature Range | -40 to +125 |
| Specification Temperature °C (min) | -40 |
| Specification Temperature °C (max) | 125 |
| Mounting Type | 8-Terminal Ceramic Surface Mount Package (SMP) |
| Package | SM3838-8 |
| Lid Symbol | 511 |
| Dimension | 3.8 x 3.8 mm |
| 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 US FCC Part 15; Canada RSS-210; and Italy | - 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 | RF1408D |
| Shipping Size | 7" @ 500 Units / Reel; 13" @ 3000 Units / Reel |