供应PT4450，高性能的无线发射芯片

PT4450的详细描述：
    型号：PT4450
厂家：PTC
封装：SOT23-6
批号：11+
应用：遥控芯片锁、免钥匙开门系统、无线家庭保全、无线遥控系统及无线感应相关产品

PT4450是一款高性能的无线发射芯片,通过简易的外围电路，可以设计成：包括一个SAW振荡器,功率放大,和一个单稳态SAW和功率放大控制的功能模块.应用于RKE,遥控控制,数据传送等；

其有以下主要特点:3V下输出功率高达10dBm(18m A);低工作电压(2.23～3.6V);较少的外部元件;采用SAW振荡器,频率稳定,工作于250～500MHz;高达50％开工比;SOT-6封装.拥有高输出功率(3V/＋10dBm),与出色的传输效能(50Kbps).

可广泛应用在车用遥控芯片锁、免钥匙开门系统、无线家庭保全、无线遥控系统及无线感应相关产品!

DESCRIPTION
PT4450 is a high performance OOK/ASK transmitter
for the Remote Keyless Entry (RKE) systems. It
consists of a SAW oscillator, power amplifier, and
one-shot circuit which control the SAW oscillator and
power amplifier

FEATURES
• Highly integrated OOK/ASK transmitter
• High output power, 3 V/+10 dBm/18 mA
• Low supply voltage (2.2 V to 3.6V operation range)
• Low external component cost.
• SAW-based oscillator frequency range from 250 ,MHz to 500 MHz
• On-chip one-shot circuit
• 50 dB RF on/off ratio
• Available in 6-pin, SOT-23 package

APPLICATIONS
• Keyless entry systems
• Remote control systems
• Garage door openers
• Alarm systems
• Security systems
• Wirele  ensors