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TPA711D Scheda tecnica(PDF) 3 Page - Texas Instruments |
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TPA711D Scheda tecnica(HTML) 3 Page - Texas Instruments |
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3 / 32 page  TPA711 700-mW MONO LOW-VOLTAGE AUDIO POWER AMPLIFIER SLOS230B – NOVEMBER 1998 – REVISED MARCH 2000 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics at specified free-air temperature, VDD = 3.3 V, TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOO Output offset voltage (measured differentially) See Note 1 20 mV PSRR Power supply rejection ratio VDD =3 2Vto3 4V BTL mode 85 dB PSRR Power supply rejection ratio VDD = 3.2 V to 3.4 V SE mode 83 dB IDD Supply current (see Figure 6) BTL mode 1.25 2.5 mA IDD Supply current (see Figure 6) SE mode 0.65 1.25 mA IDD(SD) Supply current, shutdown mode (see Figure 7) 7 50 µA NOTE 1: At 3 V < VDD < 5 V the dc output voltage is approximately VDD/2. operating characteristics, VDD = 3.3 V, TA = 25°C, RL = 8 Ω PARAMETER TEST CONDITIONS MIN TYP MAX UNIT THD = 0.2%, BTL mode, See Figure 14 250 PO Output power, see Note 2 THD = 0.1%, See Figure 22 SE mode, RL = 32 Ω, 37 mW THD + N Total harmonic distortion plus noise PO = 250 mW, f = 200 Hz to 4 kHz, See Figure 12 0.55% BOM Maximum output power bandwidth Gain = 2, THD = 2%, See Figure 12 20 kHz B1 Unity-gain bandwidth Open Loop, See Figure 36 1.4 MHz Supply ripple rejection ratio f = 1 kHz, See Figure 5 CB = 1 µF, BTL mode, 79 dB Supply ripple rejection ratio f = 1 kHz, See Figure 3 CB = 1 µF, SE mode, 70 dB Vn Noise output voltage Gain = 1, CB = 0.1 µF, See Figure 42 17 µV(rms) NOTE 2: Output power is measured at the output terminals of the device at f = 1 kHz. |
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