435.12声表面滤波器
| 品牌 |
nnt |
型号 |
435.12 |
| 种类 |
滤波器 |
标称频率 |
435.125~435.275（mhz） |
| 调整频差 |
435.125~435.275（mhz） |
总频差 |
+/-10（mhz） |
| 负载电容 |
1.7（pf） |
负载谐振电阻 |
50（ω） |
| 基准温度 |
-40℃ to +85℃（℃） |
插入损耗 |
1.5（db） |
| 阻带衰减 |
0（db） |
输入阻抗 |
10（kω） |
435.12声表面滤波器.
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 |