The LL2613 is a small size microphone input transformer Turns ratio 1+1 : 10


Usage:    
In+		pin 1 (coil 1) and pin 4 (coil 2)  
In-		pin 2 (coil 1) and pin 3 (coil 2)  
Centertap	pin 2    
Out+		pin 8	  
Out-		pin 6  
Faraday shields	pin 5