PTC PT4303-S-TP

The PT4303 is a low power superheterodyne OOK/ASK receiver for the 315/433.92 MHz frequency bands. It offers a high level of integration and requires only few external components. The PT4303 consists of a low-noise amplifier (LNA), a down-conversion mixer, an on-chip phase-locked loop (PLL) with integrated voltage-controlled oscillator (VCO) and loop filter, an OOK/ASK demodulator, a data filter, a data slicing comparator and an on-chip regulator. The PT4303 also implements a discrete one-step automatic gain control (AGC) to extend the dynamic range of the received RF signal. The PT4303 is available in a 14-pin SOP package and is specified over the extended temperature range (–40 to +85°C).

• Ultra-low power consumption: 2.7 mA for full operation (315 MHz)
• Few external components
• Excellent sensitivity on the order of –110 dBm (peak ASK signal level at 315 MHz)
• 2.4 to 5.5 V supply voltage range
• 250 MHz to 500 MHz frequency range
• Data rate up to 10 Kb/s

• Automotive remote keyless entry (RKE)
• Remote control
• Garage door and gate openers
• Suitable for applications that meet either the European ETSI-300-220 or the North American FCC (Part 15) regulatory standards