LL4902 is a high turns ratio (1+1 : 22) microphone input transformer with double Faraday shields. LL4902 was designed for a customer in
Australia, and is probably suitable for a 75 ohm : 10k application. The LL4902 is discontinued and no data sheet is available, but we do
actually have approx. 100 x (non-ROHS-compliant) LL4902 in stock.
Pin configuration (transformer seen from component side with label readable)
4, 3, 2, 1
LL4902
8, 7, 6, 5
LL4902 Usage (1:11)
in+ pin 1
in- pin 4
connect pins 2 + 3
out+ pin 6
out- pin 7
ground 1 pin 5
ground 2 + case and core pin 8
