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データシートサーチシステム |
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データシートサーチシステム |
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TPA3251 データシート(PDF) 9 Page - Texas Instruments |
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TPA3251 データシート(HTML) 9 Page - Texas Instruments |
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9 / 39 page  9 TPA3251 www.ti.com SLASE40D – MAY 2015 – REVISED APRIL 2016 Product Folder Links: TPA3251 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated (1) SNR is calculated relative to 1% THD+N output level. (2) Actual system idle losses are affected by core losses of output inductors. 7.7 Audio Characteristics (SE) PCB and system configuration are in accordance with recommended guidelines. Audio frequency = 1 kHz, PVDD_X = 36 V, GVDD_X = 12 V, RL = 2 Ω, fS = 600 kHz, ROC = 22 kΩ, TC = 75°C, Output Filter: LDEM = 15 μH, CDEM = 1 µF, MODE = 11, AES17 + AUX-0025 measurement filters, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT PO Power output per channel RL = 2 Ω, 10% THD+N 84 W RL = 3 Ω, 10% THD+N 60 RL = 4 Ω, 10% THD+N 47 RL = 2 Ω, 1% THD+N 67 RL = 3 Ω, 1% THD+N 48 RL = 4 Ω, 1% THD+N 37 THD+N Total harmonic distortion + noise 1 W 0.015% Vn Output integrated noise A-weighted, AES17 filter, Input Capacitor Grounded 115 μV SNR Signal to noise ratio(1) A-weighted 100 dB DNR Dynamic range A-weighted 101 dB Pidle Power dissipation due to idle losses (IPVDD_X) PO = 0, 4 channels switching (2) 0.5 W (1) SNR is calculated relative to 1% THD+N output level. (2) Actual system idle losses are affected by core losses of output inductors. 7.8 Audio Characteristics (PBTL) PCB and system configuration are in accordance with recommended guidelines. Audio frequency = 1 kHz, PVDD_X = 36 V, GVDD_X = 12 V, RL = 2 Ω, fS = 600 kHz, ROC = 22 kΩ, TC = 75°C, Output Filter: LDEM = 10 μH, CDEM = 1 µF, MODE = 10, AES17 + AUX-0025 measurement filters, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT PO Power output per channel RL = 2 Ω, 10% THD+N 355 W RL = 3 Ω, 10% THD+N 250 RL = 4 Ω, 10% THD+N 195 RL = 2 Ω, 1% THD+N 285 RL = 3 Ω, 1% THD+N 200 RL = 4 Ω, 1% THD+N 155 THD+N Total harmonic distortion + noise 1 W 0.05% Vn Output integrated noise A-weighted, AES17 filter, Input Capacitor Grounded 62 μV SNR Signal to noise ratio(1) A-weighted 111 dB DNR Dynamic range A-weighted 111 dB Pidle Power dissipation due to idle losses (IPVDD_X) PO = 0, 4 channels switching (2) 1 W |
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