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參數(shù)資料
| 型號： | LL1545A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Audio Transformer |
| 中文描述： | 音頻變壓器 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 53K |
| 代理商： | LL1545A |
LL1545A , page 1
Audio Transformer
LL1545A
LL1545A is a general-purpose audio transformer with a variety of connection alternatives. The transformer is
built up from two coils, each with a secondary winding surrounded by shields and two primary windings. This
structure results in an excellent frequency response. The transformer can be used in many different applications
such as a high impedance line input transformer (accepting signal levels of 22 dBU @ 40 Hz with primaries in
series), for splitting or as a microphone input transformer.
The LL1545A is made with a mu-metal core and is housed in a mu-metal can.
Refer to page 2 of this sheet for termination alternatives.
Turns ratio:
Dims: (Length x Width x Height above PCB (mm))
Pin Layout (viewed from component side) and Windings Schematics:
1 + 1 + 1 + 1 : 2 + 2
37 x 22.5 x 14.5
Spacing between pins:
Spacing between rows of pins:
Weight:
Rec. PCB hole diameter:
Static resistance of each primary (average):
Static resistance of each secondary (average):
Self resonance point:
Recommended load for best square-wave response
(Termination alternative A below):
Frequency response
(source 600
, load (6.7 k
+ 470
pF) in parallel with 56 k
):
Loss across transformer
(at midband with termination as above):
Core:
Isolation between windings / between windings and shields:
2.54 mm (0.1")
22.86 mm (0.9")
46 g
1.5 mm
147
295
>
220 kHz
6.7 k
+ 470
pF
10 Hz - 70 kHz +/- 0.5 dB @ 0 dBU
0.3 dB
Mu-metal
3 kV
/
1.5 kV
Data at different termination alternatives, showed on page 2 of this data sheet.
Termination
Alternative
ratio
prim/sec
Turns
Copper Resistance
Idle impedance
@40 Hz, 0dBU
Suggested Use
THD < 0.2%@40 Hz
primary level /
real source impedance
22 dBU / 600
16 dBU / 150
16 dbU / 150
10 dBU / 37.5
10 dBU / 37.5
A
B
C
D
E
F (Split)
G (Split)
1:1
1:1
1:2
1:2
1:4
2:1+1 590
/ 295
+ 295
1:1+1 147
/ 295
+ 295
Left side can also be connected as B
CenterTap
(1:1+1)
or D (1:2+2)
590
/ 590
147
/ 147
147
/ 590
37
/ 147
37
/ 590
80 k
/ 80 k
20 k
/ 20 k
20 k
/ 80 k
5 k
/ 20 k
5 k
/ 80 k
10 k
/ 10 k
600
/ 600
600
/ 2.5 k
200
/ 1 k
200
/ 3.2 k
R000113
8
7
6
5
4
3
2
1
15
14
13
11
10
9
Can + Core
13
1
2
3
4
8
7
11
14
16
15
9
10
6
5
Tibeliusgatan 7
S-761 50 NORRTLJE
SWEDEN
International
+46 - 176 13930
+46 - 176 13935
Domestic
0176-13930
0176-13935
Phone
Fax
16
LL1545A
(top view)
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相關(guān)代理商/技術(shù)參數(shù) |
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| LL1570 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Transformers for splitting |
| LL1570XL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Transformers for splitting |
| LL1574 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AES - DATS conversion transformer |
| LL1575 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video Isolation Transformer LL1575 |
| LL1581XL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Splitting Transformer |
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