aes - dats conversion transformer LL1574 LL1574 is a pulse transformer designed for impedance matching between 110 w and 75 w systems. the transformer has a large amorphous metal core which results in low copper resistance, high signal tolerance and low internal capacitance. turns ratio: 1 : 1.2 impedance ratio 75 : 110 dims: (length x width x height above pcb (mm)) 15 x 9 x 11 pin layout (top view) and winding schematic ' spacing between pins: 5.08 mm (0.2") spacing between rows of pins: 10.16 mm (0.4") rec. pcb hole diameter: 1.5 mm weight 2 grams core amorphous core material static resistance of primary (pins 1 - 2) : 1.0 w static resistance of secondary (pins 3 - 4) : 1.1 w maximum primary signal ? time before saturation: 160 vs at 8 volts p-p. maximum no load current at above conditions: ? = 3 ma primary main inductance (tuned at 10 khz, 2 v): 40mh primary leakage inductance: 1.3 h total coupling capacitance: < 15 pf winding capacitance: < 1 pf isolation between windings: 2 kv source impedance: 0 -- 500 w optimum load impedance: 200 w application example: interface between 110 ohms aes/ebu and 75 ohms dats/aes3id networks
tibeliusgatan 7 international domestic s- 761 50 norrt?lje phone +46 - 176 13930 0176-13930 sweden fax +46 - 176 13935 0176-13935 2 4 3 1 LL1574 4 2 3 1 110 w 75 w 13 4 2 LL1574 75 ohm dats/aes3id network, 1volt 110 ohm aes/ebu network, 4volts 22 0 1 00 3 1 2 4 LL1574 110 ohm aes/ebu network, 1.2 volts r011107
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