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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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WM8351 датащи(PDF) 27 Page - Wolfson Microelectronics plc |
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WM8351 датащи(HTML) 27 Page - Wolfson Microelectronics plc |
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27 / 330 page  Production Data WM8351 w PD, April 2012, Rev 4.5 27 9 TYPICAL PERFORMANCE DATA 9.1 AUDIO CODEC Typical THD+N performance of the Headphone Drivers is shown below for 16 and 32 headphone loads. These graphs are derived whilst using the WM8351 Power Management to generate the power supply rails for the audio CODEC. The supply conditions are as follows: AVDD = HPVDD = 3.0V, generated by WM8351 LDO1 DCVDD = DBVDD = 1.8V, generated by WM8351 DC-DC1 AC coupled headphone (16 Ohm Load) AVDD=HPVDD=3.0V (WM8351 - LDO1) DCVDD=DBVDD=1.8V (WM8351 - DCDC1) -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 5 10 15 20 25 30 35 Output Power (mW) THD+N Amplitude (dBV) AC coupled Headphone (32 Ohm Load) AVDD=HPVDD=3.0V (WM8351 - LDO1) DCVDD=DBVDD=1.8V (WM8351 - DCDC1) -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 5 10 15 20 25 30 Output Power (mW) THD+N Amplitude (dBV) |
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