PTC PT4307-S

The PT4307 is a compact, fully integrated OOK/ASK receiver with ±4 KV ESD (HBM) and ±1 KV ESD (CDM) protections for 433.92 MHz frequency band, and just requires few external components. The PT4307 consists of a low-noise amplifier (LNA), image-rejection mixer (IRM), built-in channel-select filter (CSF), OOK/ASK demodulator, data filter, and data slicing comparator. The local oscillator (LO) sub-system incorporates a monolithic VCO, ÷32 feedback divider, loop filter and fast start-up reference oscillator to form a complete phase-locked loop-based frequency synthesizer for single channel applications. The PT4307 is available in an 8-pin SOP package and is specified over the temperature range from -40 to +85 °C.

• Normal operating of 4.3 mA at 315 MHz
• Requires few external components
• Achieves sensitivity of –114 dBm (peak ASK signal level)
• Supply voltage range: 2.4 to 5.5 V
• Supports data rates up to 7.2 Kb/s
• Wide input dynamic range with automatic gain control handling
• Image-rejection ratio of 25 dB
• ESD protection levels up to ±4 KV HBM, ±400 V MM and ±1 KV CDM

• Automotive Remote Keyless Entry (RKE)
• Remote control
• Garage door and gate openers
• Suitable for applications that must adhere to either the European ETSI-300-220 or the North American FCC (Part 15) regulatory standard.