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TPA3121D2PWPG4 데이터시트(PDF) 4 Page - Texas Instruments |
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TPA3121D2PWPG4 데이터시트(HTML) 4 Page - Texas Instruments |
4 / 32 page TPA3121D2 SLOS537B – MAY 2008 – REVISED JANUARY 2014 www.ti.com DC CHARACTERISTICS TA = 25°C, VCC = 24 V, RL =8Ω (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Class-D output offset voltage | VOS | (measured differentially in BTL VI = 0 V, AV = 36 dB 7.5 50 mV mode as shown in Figure 36) V(BYPASS) Bypass output voltage No load AVCC/8 V ICC(q) Quiescent supply current SD = 2 V, MUTE = 0 V, no load 16 30 mA ICC(q) Quiescent supply current in MUTE = 0.8 V, no load 16 mA mute mode ICC(q) Quiescent supply current in SD = 0.8 V, no load 0.39 1 mA shutdown mode rDS(on) Drain-source on-state 450 210 m Ω resistance GAIN0 = 0.8 V 18 20 22 GAIN1 = 0.8 V GAIN0 = 2 V 24 26 28 G Gain dB GAIN0 = 0.8 V 30 32 34 GAIN = 2 V GAIN0 = 2 V 34 36 38 Mute attenuation VI = 1 Vrms -75 dB AC CHARACTERISTICS TA = 25°C, VCC = 24 V, RL = 8Ω (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VCC = 24, Vripple = 200 mVPP 100 Hz –48 ksvr Supply ripple rejection dB Gain = 20 dB 1 kHz –52 Output power at 1% THD+N VCC = 24 V, f = 1 kHz 8 PO W Output power at 10% THD+N VCC = 24 V, f = 1 kHz 10 Total harmonic distortion + f = 1 kHz, PO = 5 W 0.04% THD+N noise 125 μV 20 Hz to 22 kHz, A-weighted filter, Vn Output integrated noise floor Gain = 20 dB –78 dBV Crosstalk PO = 1 W, f = 1 kHz; gain = 20 dB –70 dB Max output at THD+N < 1%, f = 1 kHz, SNR Signal-to-noise ratio 92 dB gain = 20 dB Thermal trip point 150 °C Thermal hysteresis 30 °C fOSC Oscillator frequency 250 300 350 kHz Δt mute Mute delay Time from mute input switches high until 120 msec outputs muted Δt unmute Unmute delay Time from mute input switches low until 120 msec outputs unmuted 4 Submit Documentation Feedback Copyright © 2008–2014, Texas Instruments Incorporated Product Folder Links: TPA3121D2 |
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