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
’
1
2
LL1574
3
4
3
4
110
Ω
1
2
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
LL1574
110 ohm AES/EBU
network, 4Volts
1
2
3
LL1574
220
3
100
1
2
110 ohm AES/EBU
network, 1.2 Volts
4
4
75 ohm DATS/AES3id
network, 1Volt
R011107
京公网安备 11010802033920号
EEWORLD
