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WM8946ECS/R Datasheet(PDF) 11 Page - Wolfson Microelectronics plc |
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WM8946ECS/R Datasheet(HTML) 11 Page - Wolfson Microelectronics plc |
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11 / 175 page  Production Data WM8946 w PD, July 2012, Rev 4.3 11 PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Bypass to Line Output (Single-ended IN2L, IN2R to Input PGA to Line Output, 10k / 50pF) SNR (A-weighted) PGA Gain = 0dB INPPGAVOL = 0dB 90 98 dB THD+N PGA Gain = 0dB INPPGAVOL = 0dB -89.5 -82 dB Bypass to Speaker Output ( Single-ended AUX1, AUX2 to Input PGA to SPKMIX to Speaker Output, 10k / 50pF) SNR (A-weighted) PGA Gain = 0dB INPPGAVOL = 0dB 90 96 dB THD+N PGA Gain = 0dB INPPGAVOL = 0dB -86.5 -77 dB DAC Output Path Performance (DAC to Line Output, 10k / 50pF) Maximum output signal level (changes in proportion to LDOVOUT) 1 Vrms SNR (A-weighted) 85 96 dB THD -78 -72 dB THD+N -76 -70 dB Channel separation (Left/Right) 90 dB Mute attenuation 125 dB PSRR (with respect to LDOVDD) 48 60 dB Line Output Resistance 10 k Line Output Capacitance 50 pF DAC Output Path Performance (DAC to Speaker Output, 10k / 50pF) Maximum output signal level (changes in proportion to LDOVOUT) 1 Vrms SNR (A-weighted) 96 dB THD -78 dB THD+N -76 dB Speaker Output Performance (Speaker Output, 8 BTL) SNR (A-weighted) 90 96 dB THD PO=150mW 0.03 -68 % dB PO=350mW 2.944 -30.6 % dB THD+N PO=150mW 0.05 -66 % dB PO=350mW 3.72 -28.6 % dB Channel separation (Left/Right) 90 dB Mute attenuation 92 dB PSRR (with respect to LDOVDD) 217Hz 1kHz 48 60 dB PSRR (with respect to SPKVDD) 217Hz 1kHz 89 79 dB Speaker Resistance 8 Speaker Capacitance 50 pF |
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