LL4601 is a high impedance line input transformer, 2:1+1.


Pin configuration (as seen from PIN side)
4,     3,            1,    

            
8,     7,    6,     5,   

Usage (1:1):  
in+	pin 8  
in-	pin 5  
connect pin 6 + pin 7  
out+	pin 4  
out-	pin 3  
Faraday shield	pin 1