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数据搜索系统，热门电子元器件搜索 |
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WM8993 数据表(PDF) 21 Page - Wolfson Microelectronics plc |
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WM8993 数据表(HTML) 21 Page - Wolfson Microelectronics plc |
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21 / 229 page  Production Data WM8993 w PD, November 2010, Rev 4.0 21 Test Conditions DCVDD = 1.2V, AVDD2 = DBVDD = CPVDD = 1.8V, AVDD1 = 3.0V, SPKVDD = 5V, DGND=AGND=CPGND=SPKGND=0V, TA = +25 oC, 1kHz sinusoidal signal, fs = 48kHz, PGA gain = 0dB, 24-bit audio data unless otherwise stated. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT F6 VRXP-VRXN Direct Voice Path to Speaker Outputs (RL=8 Ω BTL) SNR (A-weighted) Class D Mode SPK Boost=+12dB 97 dB THD (PO=0.5W) -63 dB THD+N (PO=0.5W) -62 dB THD (PO=1.0W) -67 dB THD+N (PO=1.0W) -65 dB PSRR (all supplies 217Hz) -63 dB SNR (A-weighted) Class AB Mode SPK Boost=+12dB 104 dB THD (PO=0.5W) -68 dB THD+N (PO=0.5W) -65 dB THD (PO=1.0W) -70 dB THD+N (PO=1.0W) -68 dB PSRR (all supplies 217Hz) -67 dB DC Offset at Load Class AB Mode SPK Boost=0dB 10 mV F7 Line Input to Speaker Outputs via SPKMIXL or SPKMIXR (RL=8 Ω BTL) SNR (A-weighted) Class D Mode SPK Boost =+12dB 93 dB THD (PO=0.5W) -63 dB THD+N (PO=0.5W) -62 dB THD (PO=1.0W) -67 dB THD+N (PO=1.0W) -65 dB PSRR (all other supplies 217Hz) -47 dB SNR (A-weighted) Class AB Mode SPK Boost=+12dB 86 96 dB THD (PO=0.5W) -68 -59 dB THD+N (PO=0.5W) -65 -57 dB THD (PO=1.0W) -70 dB THD+N (PO=1.0W) -68 dB PSRR (all other supplies 217Hz) -47 dB DC Offset at Load Class AB Mode SPK Boost=0dB 10 mV |
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