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AS3412 Datasheet(PDF) 23 Page - ams AG |
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AS3412 Datasheet(HTML) 23 Page - ams AG |
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23 / 84 page  ams Datasheet Page 23 [v1-00] 2016-Apr-06 Document Feedback AS3412 − Detailed Description Figure 26: Headphone THD+N vs. Output Power 32Ω Mono Headphone THD+N vs. Output Power: These figures shows the A-weighted THD+N measurements of the headphone amplifier with different supply voltages in normal mode and ECO mode. The amplifier gain is 6dB with 32Ω load in mono configuration. Figure 27: Headphone THD+N vs. Frequency 32Ω Stereo/Mono Headphone THD+N vs. Frequency: These figures shows the A-weighted THD+N measurements over frequency in stereo and mono differential mode with VBAT=1.8V. The amplifier gain is 0dB and the load in both modes is 32Ω with 1mW and 5mW output power. 0,001 0,01 0,1 1 1 10 100 1k Pout [mW] Vbat = 1.8V Vbat = 1.65V 0,001 0,01 0,1 1 1 10 100 1k Pout [mW] Vbat = 1.8 ECO Vbat = 1.65V ECO 0 5 10 15 20 25 30 0,0001 0,001 0,01 0,1 1 10 10 100 1k 10k f [Hz] THD+N THD+N ECO Pout 0 20 40 60 80 0,0001 0,001 0,01 0,1 1 10 100 10 100 1k 10k f [Hz] THD+N Mono THD+N Mono ECO Pout Mono |
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