LTC4400-2是Linear公司的一款功率放大器控制器产品，LTC4400-2是RF Power Controllers with 450kHz Loop BW and 45dB Dynamic Range，本站介绍了LTC4400-2的封装应用图解、特点和优点、功能等，并给出了与LTC4400-2相关的凌力尔特元器件型号供参考。
LTC4400-2 - RF Power Controllers with 450kHz Loop BW and 45dB Dynamic Range
LTC4400-1 - RF Power Controllers with 450kHz Loop BW and 45dB Dynamic Range - Linear Technology（凌力尔特）
The LTC4400-1 is a SOT-23 RF power controller for fast turn-on RF power amplifiers operating in the 300MHz to 2.7GHz range. Examples include the Hitachi PF08109B, PF08122B, PF08123B, PF08107B and RF Micro Devices RF3108. For slow turn-on RF power amplifiers refer to the LTC4401-1/LTC4401-2.
RF power is controlled by driving the RF amplifier power control pin and sensing the resultant RF output power via a directional coupler or capacitive tap. The RF input voltage is peak detected using an on-chip Schottky diode. This detected voltage is compared to the DAC voltage at the PCTL pin to control the output power. The RF power amplifier is protected against high power control pin voltages.
Internal and external offsets are cancelled over temperature by an autozero control loop, allowing accurate low power programming. The shutdown feature disables the part and reduces the supply current to <10µA.
A dual control channel version (LTC4400-2) is also available in an 8-pin MSOP package.
| 器件型号 | 封装 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) |
|---|---|---|---|---|
| LTC4400-1ES6 | SOT-23 | E | $1.56 | |
| LTC4400-1ES6#PBF | SOT-23 | E | $1.56 | |
| LTC4400-1ES6#TR | SOT-23 | E | $1.25 | |
| LTC4400-1ES6#TRM | SOT-23 | E | $1.61 | $1.27 |
| LTC4400-1ES6#TRMPBF | SOT-23 | E | $1.61 | $1.27 |
| LTC4400-1ES6#TRPBF | SOT-23 | E | $1.25 | |
| LTC4400-2EMS8 | MS-8 | E | $1.86 | $1.60 |
| LTC4400-2EMS8#PBF | MS-8 | E | $1.86 | $1.60 |
| LTC4400-2EMS8#TR | MS-8 | E | $1.66 | |
| LTC4400-2EMS8#TRPBF | MS-8 | E | $1.66 |
