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Руководство пользователя LUNDAHL LL1636. Основные функции, характеристики и условия эксплуатации изложены на 2 страницах документа в pdf формате.
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Tibeliusgatan 7 International Domestic S-761 50 NORRTALJE Phone +46 - 176 13930 0176-13930 SWEDEN Fax +46 - 176 13935 0176-13935 Microphone Input Transformer LL1636 LL1636 is an audio input transformer for applications where a high turn’s ratio is desired. 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. All winding ends are available on the pins. Thus, the transformer can be configured for a number of different turn’s ratios. The LL1636 is made with amorphous core material. As this type of core does not store energy (unlike conventional mu-metal cores) the low frequency resonance with external series capacitors is practically eliminated. Turns ratio: 1 + 1 + 1 + 1 : 10 + 10 Dims: (Length x Width x Height above PCB (mm)) 30 x 22.5 x 14.5 Pin Layout (viewed from pins side) and Windings Schematics: 1 1 9 2 9 2 10 3 11 3 10 4 4 13 5 13 8 14 6 14 7 7 15 16 8 16 6 15 5 Can + core 14 Spacing between pins: 2.54 mm (0.1") Spacing between rows of pins: 22.86 mm (0.9") Weight: 27 g Rec. PCB hole diameter: 1.5 mm Static resistance of each primary (average): 10 W Static resistance of each secondary (average): 415 W Self resonance point : > 250 kHz Frequency response (@ -10 dBU, all in series. Source 50W , load 100 kW) : 10 Hz -- 25 kHz +/- 1 dB 10 Hz -- 90 kHz +/- 1.5 dB Distortion (primaries connected in series, source impedance 50W ): < 0.5% @ -2 dBU, 50 Hz Primary no load impedance @ 0 dBU, 50 Hz, all in series: 8 kW typically Core / Can: Amorphous Strip Core / Mu-metal can Isolation between windings / between windings and core: 3 kV / 1.5 kV Turns ratio and possible use at different termination alternatives. Termination alternatives are shown on the following page. Termination Turns Copper Resistance Possible Use Alternative ratio prim/sec A 1:5 40W / 790 W 400W / 10 kW B 1:5 10W / 200 W Not recommended C 1:10 10W / 790 W 100W / 10kW D 1:10 2.5W / 200 W Not recommended E 1:20 2.5W / 790 W 25W / 10kW . R980429
LL1636 Termination Alternatives (Left side is input if not stated otherwise) !!!! Pin side view !!!! 1 9 1 9 2 10 2 10 3 A 11 3 11 4 4 5 CENTER TAP 13 5 A 13 6 14 6 14 7 15 7 15 8 16 8 16 CT 1 9 1 9 2 10 2 10 3 11 3 B 11 4 B CT 4 5 13 5 CENTER TAP 13 6 14 6 14 7 15 7 15 8 16 8 16 1 9 1 9 2 10 2 10 3 11 3 C 11 4 C CT 4 5 13 5 13 6 14 6 CENTER TAP 14 7 15 7 15 8 16 8 16 1 9 2 10 1 9 3 11 2 10 4 3 11 5 D 13 4 E 6 14 5 13 14 6 7 15 8 16 7 15 8 16 1 9 1 9 OUT 1 2 F 10 IN + 2 10 OUT 1 3 11 IN GND 3 11 IN GND 4 SPLIT 4 G 5 13 OUT1 GND 5 13 OUT1 GND OUT 2 6 14 OUT2 GND 6 SPLIT 14 OUT2 GND 7 15 7 15 8 16 IN - 8 16 OUT 2