T5744 ASK 450～300 MHz Receiver

The T5744 is a single-chip PLL receiver device. It is developed to meet the requirements of low data rate, low-cost RF data communication systems. The T5744 is mainly used in the fields of radio telemetry, security technology and keyless input systems. 

The main technical features are as follows: 

・Except for the antenna adaptation circuit, only a few peripheral circuits are required, and there are no other RF components on the PCB; 

・The encoding method is Manchester or bi-phase; 

・Fully integrated VC0; 

・The power supply voltage is 4.5 to 5.5 V; 

・Data transmission rate is 1~10 Kb/s; 

・Operating frequency is 300～450 MHz; 

・Single-ended RF input, easy to adapt to λ/4 antenna or printed antenna on PCB board; 

・ASK modulation/demodulation method; 

・Indicates signal strength via RSSl; 

・There are working and sleeping mode options; 

・Compliant with the US military standard MIL-STD883 ESD protection (4KV HBM); 

・The SAW front-end filter is used in the IF amplifier structure, which has very high image rejection characteristics; 

・Power management can be achieved using a microcontroller μC.

Application circuit of T5744 working at 433 MHz without SAW filter

Application circuit of T5744 working at 433 MHz with SAW filter