一、产品特点
R315 3070声表谐振器具有插损小、集成度高、焊接方便、可焊性好、重量轻、性能好、稳定性高、价格便宜及比传统的陶瓷谐振器安装更简单、体积小。
1、电气特性（Electronic Characteristics）
| Characteristic | Sym | Min值 | Typ值 | Max值 | 单位(Units) |
Center Frequency （+25℃）
| Absolute Frequency | fC | 314.925 | 315 | 315.075 | MHz |
Tolerance from 315MHz
| △fC |
| ± 75
|
| kHz |
| Insertion Loss | IL |
| 1.4 | 1.8 | dB |
Quality Factor | Unloaded Q | QU |
| 12000 |
|
|
| 50Ω 负载(Loaded)Q | QL |
| 1000 |
|
|
Temperature Stability | Turnover Temperature | TO | 5 | 20 | 35 | ℃ |
| Turnover Frequency | fO |
| fc |
| kHz |
Frequency Temperature Coefficient
| FTC |
| 0.046 |
| ppm/℃2 |
| Frequency Aging Absolute Value during the First Year | |fA| |
| ≤10 |
| ppm/yr |
| DC Insulation Resistance Between Any Two Pins |
| 1.0 |
|
| MΩ |
RF Equivalent RLC Model | Motional Resistance | RM |
| 12.2 | 20 | Ω |
| motional inductance | LM |
| 77.6 |
| µH |
| Motional Capacitance | CM |
| 3.29 |
| fF |
| Pin 1 to Pin 2 Static Capacitance | CO |
| 2.5 |
| pF |
二、标识说明
| Pin | Configuration |
| 1 | Input |
| 2 | Case Ground |
| 3 | Output |
三、测试图
四、注意事项及用途
由于315MHz 3070封装的声表面谐振器安装简单、价格便宜，因此R315谐振器被广泛应用在各种无线通讯系统、无线发射模块等无线通讯方面。
