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TPA122 Datasheet(PDF) 3 Page - Texas Instruments |
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TPA122 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 31 page www.ti.com RECOMMENDED OPERATING CONDITIONS DC ELECTRICAL CHARACTERISTICS AC OPERATING CHARACTERISTICS DC ELECTRICAL CHARACTERISTICS TPA122 SLOS211E – AUGUST 1998 – REVISED JUNE 2004 MIN MAX UNIT VDD Supply voltage 2.5 5.5 V TA Operating free-air temperature –40 85 °C VIH High-level input voltage, (SHUTDOWN) 0.80 × V DD V VIL Low-level input voltage, (SHUTDOWN) 0.40 × V DD V at T A = 25°C, VDD = 3.3 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOO Output offset voltage 10 mV PSRR Power supply rejection ratio VDD = 3.2 V to 3.4 V 83 dB IDD Supply current VDD = 2.5, SHUTDOWN = 0 V 1.5 3 mA IDD(SD) Supply current in SHUTDOWN mode VDD = 2.5, SHUTDOWN = VDD 10 50 µA ZI Input impedance > 1 M Ω V DD = 3.3 V, TA = 25°C, RL = 8 Ω PARAMETER TEST CONDITIONS MIN TYP MAX UNIT PO Output power (each channel) THD ≤ 0.1% 70(1) mW THD+N Total harmonic distortion + noise PO = 70 mW, 20 Hz–20 kHz 2% BOM Maximum output power BW G = 10, THD < 5% > 20 kHz Phase margin Open loop 58 ° Supply ripple rejection f = 1 kHz 68 dB Channel/channel output separation f = 1 kHz 86 dB SNR Signal-to-noise ratio PO = 100 mW 100 dB Vn Noise output voltage 9.5 µV(rms) (1) Measured at 1 kHz at T A = 25°C, VDD = 5.5 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOO Output offset voltage 10 mV PSRR Power supply rejection ratio VDD = 4.9 V to 5.1 V 76 dB IDD Supply current SHUTDOWN = 0 V 1.5 3 mA IDD(SD) Supply current in SHUTDOWN mode SHUTDOWN = VDD 60 100 µA |IIH| High-level input current (SHUTDOWN) VDD = 5.5 V, VI = VDD 1 µA |IIL| Low-level input current (SHUTDOWN) VDD = 5.5 V, VI = 0 V 1 µA ZI Input impedance > 1 M Ω 3 |
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