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TAS5624A Datasheet(PDF) 9 Page - Texas Instruments |
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TAS5624A Datasheet(HTML) 9 Page - Texas Instruments |
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9 / 39 page  0.005 0.01 0.1 1 10 0.02 0.1 1 10 100 300 PO − Output Power − W 3 Ω 4 Ω 8 Ω TC = 75°C G001 0 20 40 60 80 100 120 140 160 180 200 220 240 260 10 15 20 25 30 35 40 PVDD − Supply Voltage − V 3 Ω 4 Ω 8 Ω TC = 75°C THD+N at 10% G003 TAS5624A www.ti.com SLAS844A – MAY 2012 – REVISED JANUARY 2016 7.8 Electrical Characteristics – Audio Specification Mono (PBTL) Audio performance is recorded as a chipset consisting of a TASxxxx, PWM Processor (modulation index limited to 97.7%) and a TAS5624A power stage with PCB and system configurations in accordance with recommended guidelines. Audio frequency = 1 kHz, PVDD_X = 36 V, GVDD_X = 12 V, RL = 4 Ω, fS = 384 kHz, ROC = 24 kΩ, TC = 75°C, Output Filter: LDEM = 10 μH, CDEM = 1 μF, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT RL = 1.5 Ω, 10%, THD+N 400 RL = 2 Ω, 10% THD+N 300 RL = 4 Ω, 10% THD+N 160 PO Power output per channel W RL = 1.5 Ω, 1% THD+N 320 RL = 2 Ω, 1% THD+N 250 RL = 4 Ω, 1% THD+N 130 THD+N Total harmonic distortion + noise 1-W, 1-kHz signal 0.025% Vn Output integrated noise A-weighted, AES17 measuring filter 180 μV VOS Output offset voltage No signal 10 20 mV SNR Signal-to-noise ratio(1) A-weighted, AES17 measuring filter 105 dB DNR Dynamic range A-weighted, –60 dBFS (rel 1% THD) 105 dB Power dissipation due to idle losses Pidle PO = 0, All channels switching (2) 1 W (IPVDD_X) (1) SNR is calculated relative to 1% THD-N output level. (2) Actual system idle losses are affected by core losses of output inductors. 7.9 Typical Characteristics 7.9.1 BTL Configuration Measurement conditions are: 1 kHz, PVDD_X = 36 V, GVDD_X = 12 V, RL = 4 Ω, fS = 384 kHz, ROC = 24 kΩ, TC = 75°C, Output Filter: LDEM = 10 μH, CDEM = 1 µF, 20-Hz to 20-kHz BW (AES17 lowpass filter), unless otherwise noted. 1 kHz Figure 1. Total Harmonic + Noise vs Output Power Figure 2. Output Power vs Supply Voltage vs Distortion + Noise = 10% Copyright © 2012–2016, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: TAS5624A |
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