Receiver IC


PT4301

PThe PT4301 is a very low power and highly sensitive single chip OOK/ASK super-heterodyne receiver for the 315MHz and 434MHz frequency bands that offers a high level of integration and requires only a few external components. The PT4301 consists of a low-noise amplifier (LNA), an image-rejection mixer, an on-chip phase-locked loop (PLL) with integrated voltage-controlled oscillator (VCO) and loop filter, a 10.7MHz intermediate frequency (IF) lim¬iting amplifier stage with received-signal-strength indicator (RSSI), and analog baseband data recovery circuitry (data filter, peak detector, and data slicer). The PT4301 also implements a discrete one-step automatic gain control (AGC) that reduces the LNA gain by 20dB when the RF input signal is greater than -47dBm. The PT4301 is available in a 24-pin SSOP package.


FEATURES


● Low current consumption (5mA fully active mode at 315MHz)

● 2.4V to 5.5V supply voltage operation range

● Optimized for 315MHz or 434MHz ISM Band

● On-chip image-rejection function

● High dynamic range with on-chip AGC

● Low power down mode current (<1mA)

● High sensitivity of -114dBm (315MHz, 2Kb/s AM 99% square-wave modulation)

● Package Type - SSOP 24

APPLICATIONS  


● Remote keyless entry (RKE) systems

● Remote control systems including garage door and gate openers

● Alarm and security systems

● Wireless sensors

資源下載


Documentation

TitleFileVersionDate
DatasheetPT4301.pdfV1.42010/10/1

Tools

Application Note