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TPA3250D2DDW Arkusz danych(PDF) 9 Page - Texas Instruments |
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TPA3250D2DDW Arkusz danych(HTML) 9 Page - Texas Instruments |
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9 / 41 page  TPA3250D2 www.ti.com SLASE99 – DECEMBER 2015 7.7 Audio Characteristics (SE) PCB and system configuration are in accordance with recommended guidelines. Audio frequency = 1 kHz, PVDD_X = 32 V, GVDD_X = 12 V, RL = 4 Ω, fS = 450 kHz, ROC = 22 kΩ, TA = 25°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 RL = 4 Ω, 10% THD+N 33 RL = 3 Ω, 10% THD+N 42 PO Power output per channel W RL = 4 Ω, 1% THD+N 27 RL = 3 Ω, 1% THD+N 34 THD+N Total harmonic distortion + noise 1 W 0.015% A-weighted, AES17 filter, Input Capacitor Vn Output integrated noise 111 μV Grounded SNR Signal to noise ratio(1) A-weighted 100 dB DNR Dynamic range A-weighted 100 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 = 32 V, GVDD_X = 12 V, RL = 4 Ω, fS = 450 kHz, ROC = 22 kΩ, TA = 25°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 RL = 8 Ω, 10% THD+N 75 RL = 4 Ω, 10% THD+N 145 RL = 3 Ω, 10% THD+N 189 PO Power output per channel W RL = 8 Ω, 1% THD+N 60 RL = 4 Ω, 1% THD+N 115 RL = 3 Ω, 1% THD+N 150 THD+N Total harmonic distortion + noise 1 W 0.015% A-weighted, AES17 filter, Input Capacitor Vn Output integrated noise 62 μV Grounded SNR Signal to noise ratio(1) A-weighted 112 dB DNR Dynamic range A-weighted 107 dB Pidle Power dissipation due to idle losses (IPVDD_X) PO = 0, 4 channels switching (2) 0.6 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. Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: TPA3250D2 |
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