La puce est un PT4303 en boitier cms 14 pins SOP dont le datasheet est facile à trouver. Il est dit :<br />
The PT4303 is a low power superheterodyne OOK/ASK receiver for the 315/433.92 MHz frequency bands.
<br /><br />
FEATURES :
- Ultra-low power consumption: 2.7 mA for full<br />
operation (315 MHz)
- Few external components<br />
- Excellent sensitivity on the order of –110 dBm<br />
(peak ASK signal level at 315 MHz)<br />
- 2.4 V to 5.5 V supply voltage range<br />
- 250 MHz to 500 MHz frequency range<br />
- Data rate up to 10 Kb/s<br />
<br /><br />
On peut donc l'alimenter en 5V