Help with 1PCS Sound detection sensor module

Other Hardware Sensors
1

Hi,

I have this Sound detection module :
Microphone Sensor High Sound Sensitivity Detection Module for Car 3pin for sale online | eBay i.html%3F_from%3DR40%26_sacat%3D0%26_nkw%3D2610830 86582%26_rdc%3D1

And this is the .pdf of the main chip:

https://www.fairchildsemi.com/ds/LM/LM393.pdf

I need help to connect this to a Arduino Mega 2560 and create a code for this.
Please if someone could help me, Thanks.

2 
const int SoundDetectorPin = 2;

if (digitalRead(SoundDetectorPin) == LOW)
    Serial.println ("Detected sound.");