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TPA112DGN データシート(PDF) 3 Page - Texas Instruments |
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TPA112DGN データシート(HTML) 3 Page - Texas Instruments |
3 / 28 page TPA112 150-mW STEREO AUDIO POWER AMPLIFIER SLOS212C – AUGUST 1998 – REVISED MARCH 2000 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 dc electrical characteristics at TA = 25°C, VDD = 3.3 V PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIO Input offset voltage 5 mV PSRR Power supply rejection ratio VDD = 3.2 V to 3.4 V 83 dB IDD(q) Supply current 1.5 3 mA IDD(SD) Supply current in SHUTDOWN mode 10 50 µA ZI Input impedance >1 M Ω ac operating characteristics, VDD = 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† mW THD+N Total harmonic distortion + noise PO = 70 mW, 20–20 kHz 2% BOM Maximum output power BW G = 10, THD <5% >20 kHz Phase margin Open loop 58 ° SVRR 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) † Measured at 1 kHz dc electrical characteristics at TA = 25°C, VDD = 5 V PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIO Input offset voltage 5 mV PSRR Power supply rejection ratio VDD = 4.9 V to 5.1 V 76 dB IDD(q) Supply current 1.5 3 mA IDD(SD) Supply current in SHUTDOWN mode 60 100 µA ZI Input impedance >1 M Ω ac operating characteristics, VDD =5 V, TA = 25°C, RL = 8 Ω PARAMETER TEST CONDITIONS MIN TYP MAX UNIT PO Output power (each channel) THD ≤ 0.1% 70† mW THD+N Total harmonic distortion + noise PO = 150 mW, 20–20 kHz 2% BOM Maximum output power BW G = 10, THD <5% >20 kHz Phase margin Open loop 56 ° SVRR Supply ripple rejection f = 1 kHz 68 dB Channel/channel output separation f = 1 kHz 86 dB SNR Signal-to-noise ratio PO = 150 mW 100 dB Vn Noise output voltage 9.5 µV(rms) † Measured at 1 kHz |
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