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TPA311DR Datasheet(PDF) 3 Page - Texas Instruments |
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TPA311DR Datasheet(HTML) 3 Page - Texas Instruments |
3 / 35 page TPA311 350-mW MONO AUDIO POWER AMPLIFIER SLOS207C – JANUARY 1998 – REVISED MAY 2003 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions MIN MAX UNIT Supply voltage, VDD 2.5 5.5 V High level voltage VIH SHUTDOWN 0.9 VDD V High-level voltage, VIH SE/BTL 0.9 VDD V Low level voltage VIL SHUTDOWN 0.1 VDD V Low-level voltage, VIL SE/BTL 0.1 VDD V Operating free-air temperature, TA (see Table 3) – 40 85 °C 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) SHUTDOWN = 0 V, SE/BTL = 0 V, RL = 8 Ω, RF = 10 kΩ 5 20 mV PSRR Power supply rejection ratio V 3 2Vto3 4V BTL mode 85 dB PSRR Power supply rejection ratio VDD = 3.2 V to 3.4 V SE mode 83 dB I Supply current (see Figure 6) SHUTDOWN = 0 V, SE/BTL = 0.33 V, RF = 10 kΩ BTL mode 0.7 1.5 mA IDD Supply current (see Figure 6) SHUTDOWN = 0 V, SE/BTL = 2.97 V, RF = 10 kΩ SE mode 0.35 0.75 mA IDD(SD) Supply current, shutdown mode (see Figure 7) SHUTDOWN = VDD, SE/BTL = 0 V, RF = 10 kΩ 7 50 µA |IIH| High level input current SHUTDOWN, VDD = 3.3 V, VI = VDD 1 µA |IIH| High-level input current SE/BTL, VDD = 3.3 V, VI = VDD 1 µA |IIL| Low level input current SHUTDOWN, VDD = 3.3 V, VI = 0 V 1 µA |IIL| Low-level input current SE/BTL, VDD = 3.3 V, VI = 0 V 1 µA operating characteristics, VDD = 3.3 V, TA = 25°C, RL = 8 Ω PARAMETER TEST CONDITIONS MIN TYP MAX UNIT P Output power see Note 1 THD = 0.5%, BTL mode, See Figure 14 250 mW PO Output power, see Note 1 THD = 0.5%, SE mode 110 mW THD + N Total harmonic distortion plus noise PO = 250 mW, See Figure 12 f = 20 Hz to 4 kHz, AV = – 2 V/V, 1.3% BOM Maximum output power bandwidth AV = – 2 V/V, THD = 3%, See Figure 12 10 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, 71 dB Supply ripple rejection ratio f = 1 kHz, See Figure 3 CB = 1 µF, SE mode, 86 dB Vn Noise output voltage AV = – 1 V/V, BTL, CB = 0.1 µF, See Figure 42 RL = 32 Ω, 15 µV(rms) NOTE 1: Output power is measured at the output terminals of the device at f = 1 kHz. |
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