| 型號： | PT4455 |
|---|---|
| 品牌： | PTC(普成) |
| 原產地： | 臺灣 中國 |
| 類別： | 電子、電力 / 電子元器件 / 集成電路 |
| 標籤︰ | PT4455 , 普成PT4455 , PT4455 sop |
| 單價： |
¥2.6
/ 件
|
| 最少訂量： | 10 件 |
| 即時通訊: | 最後上線︰2013/07/31 |
PT4455
PT4455(低電壓UHF OOK/ASK發射器)。
PT4455使用晶振作為基頻，使得頻率偏移可以降至最低。在250~450MHz的操作頻帶中， 3.0V的工作電壓即可輸出+10dBm功率，很適合低電壓應用。PT4455也是市面上相同方案中外圍零件最少者，可以減少PCB所需面積，讓終端產品在造型有更多發揮的空間，採用SOT-23-6封裝,跟pt4450比，它有了內置晶振！
FEATURES •
Highly integrated OOK/ASK transmitter • High output power, 3 V /+11 dBm / 17 mA • Low supply voltage, 2.2 V to 3.6 V operation range• Low external component cost. • PLL-based transmitter with frequency range from 250MHz to 450MHz • On-chip one-shot circuit • 60 dB RF on-off ratio for OOK/ASK modulation • SOT23-6
DESCRIPTION
PT4455 is a high performance OOK/ASK transmitter for the Remote Keyless Entry (RKE) systems. It consists of a power amplifier, one-shot circuit and phase-locked loop with internal voltage controlled oscillator and loop filter. The one-shot circuit control the phase-locked loop and power amplifier to have fast start-up time in operation.
FEATURES
Highly integrated OOK/ASK transmitter High output power, 3 V /+11 dBm / 17 mA Low supply voltage, 2.2 V to 3.6 V operation range Low external component cost. PLL-based transmitter with frequency range from 250MHz to 450MHz On-chip one-shot circuit 60 dB RF on-off ratio for OOK/ASK modulation SOT23-6 package
APPLICATIONS
Keyless entry systems Remote control systems Garage door openers Alarm systems Security systems Wireless sensors
PTC/普誠科技 旗下還有以下射頻芯片：PT2260 / PT4455 / PT4301 / PT4302 / PT4316 / PT4317 / PT4450 都可以長期穩定優勢供應！
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