Трансформатор LUNDAHL LL1684. Инструкция на английском языке

Tibeliusgatan 7                        International   Domestic
LUNDAHL                        S-761 50 NORRTALJE         Phone    +46 - 176 13930   0176-13930
TRANSFORMERS                 SWEDEN                     Fax      +46 - 176 13935   0176-13935
High Level General Purpose Transformer
LL1684
LL1684 is a high-level, general-purpose, amorphous core transformer which can be used for microphone or line input,
for line output and for galvanic isolation. The windings are arranged to give perfect symmetry if the transformer is
used in phase splitting input applications. The two coils structure also greatly improves immunity to external magnetic
fields from e.g. power supplies and motors. Primary and secondary windings are separated by electrostatic shields..
The transformer is housed in a mu-metal can.
Turns ratio:                                             1 + 1 : 1 + 1
Pin layout (viewed from component side) and winding schematics:
1                   10
5               10
4                 9                    2                   7
LL1684
Top view    8                    5                   6
2                 7
1                 6                    4                   9
8
Dimensions     (L x W x H above PCB, in mm)           42 x 28 x 22
Spacing between pins                                  5.08 mm  (0.2")
Spacing between rows of pins                          30.5 mm  (1.2")
Rec. PCB hole diameter:                               1.5 mm
Weight:                                               81 g
Static resistance of each primary:                    41W
Static resistance of each secondary:                  41W
Distortion    (primaries connected in series,         + 23 dBU  0.1% @ 50 Hz
source impedance 150W ):                + 25 dBU  < 1  %  @ 50 Hz
Distortion    (primaries connected in parallel,       +  16 dBU  0.1% @ 50 Hz
source impedance 150W ):                + 19 dBU  < 1  %  @ 50 Hz
Self resonance point:                                 > 250 kHz
Frequency response (source 150W, load 10 kW,          10 Hz -- 100 kHz +/- 1.0 dB
serial connection):
Phase response  (deviation from linear phase)         20 Hz – 20kHz, +/- 0.5°
Suggested load for best square wave response          10k // 1k + 3nF
Isolation between windings/ between windings and shield:   3 kV / 1.5 kV
Connection alternatives and suggested applications:
Serial-serial connection (1 : 1) for high level line   Parallel-parallel connection  (1 : 1)
+               isolation                           for low loss isolation application
5               10                          5               10
4                 9    Centertap            4                 9
LL1684                                       LL1684
Top view    8                               Top view    8
2                 7                 +       2                 7        +
1                 6      +                  1                 6
5               10
4                 9
Phase splitting             LL1684      8
for 1 : 1+1 input            Top view
+        2                 7
1                 6       +
R030624