Datenblatt-Suchmaschine für elektronische Bauteile |
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TPA2001D1 Datenblatt(PDF) 10 Page - Texas Instruments |
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TPA2001D1 Datenblatt(HTML) 10 Page - Texas Instruments |
10 / 15 page TPA2001D1 1-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER SLOS338D – SEPTEMBER 2000 – REVISED DECEMBER 2002 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 APPLICATION INFORMATION differential input The differential input stage of the amplifier cancels any noise that appears on both input lines of the channel. To use the TPA2001D1 EVM with a differential source, connect the positive lead of the audio source to the INP input and the negative lead from the audio source to the INN input. To use the TPA2001D1 with a single-ended source, ac ground the INN input through a capacitor and apply the audio single to the input. In a single-ended input application, the INN input should be ac-grounded at the audio source instead of at the device input for best noise performance. shutdown modes The TPA2001D1 employs a shutdown mode of operation designed to reduce supply current (IDD) to the absolute minimum level during periods of nonuse for battery-power conservation. The SHUTDOWN input terminal should be held high during normal operation when the amplifier is in use. Pulling SHUTDOWN low causes the outputs to mute and the amplifier to enter a low-current state, IDD(SD) = 1 µA. SHUTDOWN should never be left unconnected because amplifier operation would be unpredictable. using low-ESR capacitors Low-ESR capacitors are recommended throughout this application section. A real (as opposed to ideal) capacitor can be modeled simply as a resistor in series with an ideal capacitor. The voltage drop across this resistor minimizes the beneficial effects of the capacitor in the circuit. The lower the equivalent value of this resistance the more the real capacitor behaves like an ideal capacitor. evaluation circuit INP INN SHUTDOWN GAIN0 GAIN1 PVDD OUTP PGND BYPASS AGND COSC ROSC VDD PVDD OUTN PGND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 U1 TPA2001D1 C5 1 µF C6 1 µF C7 1 µF C1 220 pF R1 120 k Ω C2 1 µF C3 1 µF J1 J2 C4 1 µF C8 10 µF R3 120 k Ω S1 R2 120 k Ω OUT+ VDD OUT– IN– IN+ VDD R4 120 k Ω SHUTDOWN GND GND NOTE: R1, R2, and R3 are used in the EVM but are not required for normal applications. |
Ähnliche Teilenummer - TPA2001D1_06 |
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Ähnliche Beschreibung - TPA2001D1_06 |
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