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THS4532IPW датащи(PDF) 34 Page - National Semiconductor (TI) |
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THS4532IPW датащи(HTML) 34 Page - National Semiconductor (TI) |
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34 / 44 page ![]() 0 50m 100m 150m 200m 0 1 2 3 4 5 0 0.5 1 1.5 2 2.5 Time (s) Power Supply VOUT + VOUT − VS = 5 V G = 2 V/V RF = 2 kΩ RL = 200 Ω G073 0 50m 100m 150m 200m 0 1 2 3 4 5 0 0.5 1 1.5 2 2.5 Time (s) Power Supply VOUT + VOUT − VS = 5 V G = 2 V/V RF = 2 kΩ RL = 200 Ω G072 THS4532 SLOS829 – FEBRUARY 2013 www.ti.com Audio On/Off Pop Performance The THS4532 is tested to show on and off pop performance by connecting a speaker between the differential outputs and switching on and off the power supply, and also by using the power down function of the THS4532. Testing was done with and without tones. During these tests no audible pop could be heard. With no input tone, Figure 87 shows the voltage waveforms when switching power on to the THS4532 and Figure 88 shows voltage waveforms when turning power off. The transients during power on and off show no audible pop should be heard. Figure 87. Power Supply Turn On Pop Performance Figure 88. Power Supply Turn Off Pop Performance With no input tone, Figure 89 shows the voltage waveforms using the PD pin to enable and disable the THS4532. The transients during power on and off show no audible pop should be heard. 34 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Product Folder Links :THS4532 |
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