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Руководство пользователя DACT CT2-2. Основные функции, характеристики и условия эксплуатации изложены на 3 страницах документа в pdf формате.
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Page 1 of 3 CT1 and CT2 Audio Attenuators / Volume Controls OUTLINE DRAWING AND DIMENSIONS APPROX. DIMENSIONS (mm) Dim. Description CT1 CT1 CT1 CT2 CT2 (1 deck) (2 decks) (4 decks) (2 decks) (6 decks) A Distance between terminal sets - 17.5 3 x 17.5 14.5 3 x 14.5 2 x 20.0 B Mounting plane to first terminal set 18 18 18 14 14 C Total build-in depth 28 45.5 80.5 42 112 D PCB width (bottom) 10 10 10 9 9 E Total height when mounted on a PCB 36.5 36.5 36.5 36 36 F PCB diameter (click-house for CT2) 32 32 32 32 32 SPECIFICATIONS MAXIMUM RATINGS
Page 2 of 3 Note Parameter (conditions / comments) Value Unit CT1 & CT2 1 Switching capacity (resistive load) 2V/2A AC/DC 24V/0.6A 42V/0.4A 1 Power dissipation (each resistor, CT1 / CT2) 125 / 100 mW 1 Operating ambient temp. range -25 to +70 deg.C 1 Storage temperature range -40 to +85 deg.C MECHANICAL CHARACTERISTICS Note Parameter (conditions / comments) Value Unit CT1 & CT2 Number of positions 24 Indexing angle 15 deg. Switching function Shorting Gold plating, contacts (hard-gold) 3 um Gold plating, wiper (hard-gold) 8 um 2 Mechanical life > 25,000 cycles Switching torque 1.5 Ncm Nut tightening torque Max. 300 Ncm DC ELECTRICAL CHARACTERISTICS Note Parameter (conditions / comments) Value Unit CT1 & CT2 Total resistance range 10,20,50,100,250, kOhm 500 (500:CT2 only) 3 Total resistance accuracy (new) 0.1 % Attenuation steps (source output 0,2,4,6,8,10,12,14,1 dB impedance = 0), 6,18,20,22,24,26,28, (load input impedance = 30,32,34,38,42,46,5 infinite) 0,60,infinite 3 Attenuation accuracy (new) +/- 0.05 dB 3 Matching accuracy (tracking) (2 decks) +/- 0.05 dB 4 Contact resistance (new) Max. 0.01 ohm Contact capacitance (adjacent contacts) 1 pF Series inductance (10 kOhm, input to ground) Max. 0.2 uH AC ELECTRICAL CHARACTERISTICS Note Parameter (conditions / comments) Value Unit CT1 & CT2 4 -3dB bandwidth (10k, A = -6dB) 50 MHz 5 Noise voltage (10k, input to ground pin) 12.8 nV/Hz 6 Total harmonic distortion (A = -6dB, fo = 1kHz) Max. 0.0001 % Notes 1 Exposure to maximum rating conditions for extended periods of time may affect device reliability 2 One cycle is defined as a full rotation from one end stop to the other and return 3 Typical values at +25 deg. C ambient temperature. Output (pin 2) unloaded 4 Measuring probe input capacitance 1 pF 5 Theoretical value for an ideal 10k resistor 6 Measured with Panasonic Audio Analyzer VP-7722P
Page 3 of 3 ORDERING INFORMATION Part number Description CT1-xxxk-1 Mono (1 deck) version of CT1 in 10k, 20k, 50k, 100k or 250kOhm CT1-xxxk-2 Stereo (2 decks) version of CT1 in 10k, 20k, 50k, 100k or 250kOhm CT1-xxxk-4 Balanced stereo (4 decks) version of CT1 in 10k, 20k, 50k, 100k or 250kOhm CT2-xxxk-2 Stereo (2 decks) version of CT2 in 10k, 20k, 50k, 100k, 250k or 500kOhm CT2-xxxk-6 A/V (6 decks) version of CT2 in 10k, 50k, or 100k ( 20k, 250k and 500kOhm on special request) CT-knob1 Stainless steel knob for CT1, CT2 and CT3, raw steel look, 25 mm (1”) diam. CT-ext1/S Shaft extension kit. Version with short extension shaft (200mm = 7.87”) CT-ext1/L Shaft extension kit. Version with long extension shaft (400mm = 15.75”) CT-conn1 Gold plated connector for CT1 and CT2. Includes 3 pcs 30cm (12”) long wires CT1 / CT2 schematic CT1-mod1/xxxk Resistor kit for modifying the attenuation curve of CT1 (resistors for 1 deck) NOTE. xxxk refers to the resistance 10k, 20k, 50k, 100k, 250k or 500kOhm