| 品牌 | nnt | 型號 | 435.12 |
| 種類 | 濾波器 | 標稱頻率 | 435.125~435.275（mhz） |
| 調整頻差 | 435.125~435.275（mhz） | 總頻差 | +/-10（mhz） |
| 負載電容 | 1.7（pf） | 負載諧振電阻 | 50（ω） |
| 基準溫度 | -40℃ to +85℃（℃） | 插入損耗 | 1.5（db） |
| 阻帶衰減 | 0（db） | 輸入阻抗 | 10（kω） |
435.12聲表面濾波器.
item | value |
dc voltage vdc | 10v |
ac voltage vpp | 10v (50hz/60hz) |
operation temperature | -40℃to +85℃ |
storage temperature | -45℃to +85℃ |
rf power dissipation | 0dbm |
4.2 electronic characteristics
test temperature: 22℃+/- 2℃
terminating source impedance: 50ω
terminating load impedance: 50ω
item | unit | minimum | typical | maximum |
center frequency (fo) | mhz | 435125 | 435.22 | 435.275 |
insertion loss | db | — | 1.5 | 2.5 |
quality factor | — | — | — | — |
unloaded q | — | — | 12,800 | — |
50ω loaded q | — | — | 2,000 | — |
temperature stability | — | — | — | — |
turnover temperature | ℃ | 10 | 25 | 40 |
frequency temperature coefficient | ppm/℃2 | — | 0.032 | — |
frequency aging | ppm/yr | — | <±10 |
|
dc insulation resistance | mω | 1.0 |
| — |
rf equivalent rlc model | — | — | — | — |
motional resistance r1 | ω | — | 18 | 26 |
motional inductance l1 | μh | — | 66 | — |
motional capacitance c1 | ff | — | 2.3 | — |
shunt static capacitance c0 | pf | 1.4 | 1.7 | 2.0 |