Трансформатор LUNDAHL LL1574. Инструкция на английском языке

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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
’
110 W
1     2                     1   2
LL1574
3     4
3   4
75 W
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 µVs at 8 volts p-p.
Maximum no load current at above conditions:      I = 3 mA
Primary main inductance (tuned at 10 kHz, 2 V):   40mH
Primary leakage inductance:                       1.3 µH
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
LL1574                                          LL1574
220
1   3                                            3   1   110 ohm AES/EBU
110 ohm AES/EBU
network, 4Volts           100                                            network, 1.2 Volts
2    4                                           4    2
75 ohm DATS/AES3id
network, 1Volt
R011107