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TPA0253DGQG4 Scheda tecnica(PDF) 4 Page - Texas Instruments |
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TPA0253DGQG4 Scheda tecnica(HTML) 4 Page - Texas Instruments |
4 / 11 page TPA0253 1-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE SLOS280D – JANUARY 2000 – REVISED NOVEMBER 2002 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions MIN MAX UNIT Supply voltage, VDD 2.5 5.5 V ST/MN VDD = 3 V 2.7 High-level input voltage, VIH ST/MN VDD = 5 V 4.5 V High level in ut voltage, VIH SHUTDOWN 2 V ST/MN VDD = 3 V 1.65 Low-level input voltage, VIL ST/MN VDD = 5 V 2.75 V Low level in ut voltage, VIL SHUTDOWN 0.8 V Operating free-air temperature, TA – 40 85 °C electrical characteristics at specified free-air temperature, VDD = 3 V, TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT |VOO| Output offset voltage (measured differentially) RL = 4 Ω, ST/MN = 0 V, SHUTDOWN = 2 V 30 mV PSRR Power supply rejection ratio VDD = 2.9 V to 3.1 V, BTL mode 65 dB |I | High level input current SHUTDOWN, VDD = 3.3 V, VI = VDD 1 A |IIH| High-level input current ST/MN, VDD = 3.3 V, VI = VDD 1 µA |I | Low level input current SHUTDOWN, VDD = 3.3 V, VI = 0 V 1 A |IIL| Low-level input current ST/MN, VDD = 3.3 V, VI = 0 V 1 µA ZI Input impedance 50 k Ω IDD Supply current VDD = 2.5 V, SHUTDOWN = 2 V 2.7 4 mA IDD(SD) Supply current, shutdown mode SHUTDOWN = 0 V 1 10 µA RF Feedback resistor VDD = 2.5 V, RL = 4 Ω, ST/MN = 1.375 V, SHUTDOWN = 2 V 47 50 57 k Ω operating characteristics, VDD = 3 V, TA = 25°C, RL = 8 Ω, f = 1 kHz (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT THD = 0.1%, BTL mode, Gain = 14 dB 300 PO Output power, see Note 1 THD = 0.1% Gain = 1.9 dB SE mode, RL = 32 Ω 30 mW THD + N Total harmonic distortion plus noise PO = 250 mW, f = 20 Hz to 20 kHz 0.2% BOM Maximum output power bandwidth Gain = 1.9 dB, THD = 2% 20 kHz Supple ripple rejection ratio f 1 kHz C0 47 F BTL mode 46 dB Supple ripple rejection ratio f = 1 kHz, C(BYP) = 0.47 µF SE mode 68 dB V Noise output voltage C(BYP) 047 µF f=20Hzto20kHz BTL mode 83 µVRMS Vn Noise output voltage C(BYP) = 0.47 µF, f = 20 Hz to 20 kHz SE mode 33 µVRMS NOTE 1: Output power is measured at the output terminals of the device at f = 1 kHz. |
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