LL1574 Datasheet, PDF (1/1 Pages) List of Unclassifed Manufacturers – AES - DATS conversion transformer

 
   
Tibeliusgatan 7
S-761 50 NORRTÄLJE
SWEDEN
Phone
Fax
International
+46 - 176 13930
+46 - 176 13935
Domestic
0176-13930
0176-13935
AES - DATS conversion transformer
LL1574
LL1574 is a pulse transformer designed for impedance matching between 110 Ω and 75 Ω systems. The
transformer has a large amorphous metal core which results in low copper resistance, high signal tolerance and
low internal capacitance.
Turns ratio:
Impedance ratio
Dims: (Length x Width x Height above PCB (mm))
1 : 1.2
75 : 110
15 x 9 x 11
Pin Layout (Top View) and Winding Schematic
’
110 Ω
1
2
12
LL1574
3
4
34
75 Ω
Spacing between pins:
Spacing between rows of pins:
Rec. PCB hole diameter:
Weight
Core
Static resistance of primary (Pins 1 - 2):
Static resistance of secondary(Pins 3 - 4):
Maximum primary signal • time before saturation:
Maximum no load current at above conditions:
Primary main inductance (tuned at 10 kHz, 2 V):
Primary leakage inductance:
Total coupling capacitance:
Winding capacitance:
Isolation between windings:
Source impedance:
Optimum load impedance:
5.08 mm (0.2")
10.16 mm (0.4")
1.5 mm
2 grams
Amorphous core material
1.0 Ω
1.1 Ω
160 µVs at 8 volts p-p.
Î = 3 mA
40mH
1.3 µH
< 15 pF
< 1 pF
2 kV
0 -- 500 Ω
200 Ω
Application example:
Interface between 110 ohms AES/EBU and 75 ohms DATS/AES3id networks
110 ohm AES/EBU
network, 4Volts
LL1574
13
24
220
100
75 ohm DATS/AES3id
network, 1Volt
LL1574
3 1 _{110 ohm AES/EBU}
network, 1.2 Volts
42
R011107