供应PT4452-S，低电压UHF OOK/ASK/FSK发射器

型号：PT4452-S

厂家：PTC

封装：SOP-8

批号：新年份

应用：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

PT4452(低电压UHF OOK/ASK/FSK发射器).
PT4452使用晶振作为基频，使得频率偏移可以降至.在250~450MHz的操作频带中,3.0V的工作电压即可输出+10dBm功率,很适合低电压应用.PT4452是市面上相同方案中外围零件最少者,可以减少PCB所需面积,让终端产品在造型有更多发挥的空间,采用SOP-8封装

Description
      PT4452 is a high performance OOK/ASK/FSK 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 controls the phase-locked loop and power amplifier to have fast start-up time in operation.

Features
• Highly integrated OOK/ASK/FSK transmitter
• High output power, 3 V /+12 dBm /27 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

Applications
• Keyless entry systems
• Remote control systems
• Garage door openers
• Alarm systems
• Security systems
• Wireless sensors