Receiver IC


PT4308

The PT4307 is a compact, fully integrated OOK/ASK receiver with ±4 KV ESD (HBM) and ±1 KV ESD (CDM) protections for 315 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.


FEATURES


● 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

● Package Type - SOP 8

APPLICATIONS


● 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.

資源下載

Documentation

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PT4308.pdfPRE 1.0 

Tools

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PT4308.pdfPRE 1.0 

Application Note

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PT4308.pdfPRE 1.0