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TDA8563 датащи(PDF) 11 Page - NXP Semiconductors |
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TDA8563 датащи(HTML) 11 Page - NXP Semiconductors |
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11 / 20 page ![]() 1997 Feb 20 11 Philips Semiconductors Product specification 2 × 40 W/2 Ω stereo BTL car radio power amplifier with diagnostic facility TDA8563AQ Fig.7 Mode select switch circuitry. handbook, halfpage +VP MODE MGD959 BZX79C/3.9V 10 k Ω 47 µF Diagnostic output Special care must be taken in the printed-circuit board layout to separate pin 12 from pin 1 and pin 13, to minimize the crosstalk between the diagnostic output and the inputs. Mode select switch To avoid switch-on plops, it is advised to keep the amplifier in the mute mode during >100 ms (charging of the input capacitors at pin 1 and pin 13). The circuit in Fig.7 slowly ramps up the voltage at the mode select switch pin when switching on and results in fast muting when switching off. (1) f = 10 kHz. (2) f = 1 Hz. (3) f = 100 Hz. Fig.8 Total harmonic distortion as a function of output power; VP = 14.4 V; RL =2 Ω. handbook, full pagewidth 10 2 MLB667 10 1 10 1 10 2 10 1 10 P (W) o 10 2 1 10 2 THD (%) (1) (2) (3) |
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