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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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WM8985GEFL/R датащи(PDF) 10 Page - Wolfson Microelectronics plc |
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WM8985GEFL/R датащи(HTML) 10 Page - Wolfson Microelectronics plc |
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10 / 118 page  WM8985 Pre-Production w PP, Rev 3.4, October 2006 10 Test Conditions DCVDD=1.8V, AVDD1=AVDD2=DBVDD=3.3V, TA = +25 oC, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT -7dBV Input AVDD1=AVDD2=2.5V -72 dBFS Channel Separation 6 1kHz full scale input signal 100 dBFS Analogue to Digital Converter (ADC) - Input from L2, R2 into left and right PGA mixer. INPPGAVOLL, INPPGAVOLR, L2_2BOOSTVOL, R2_2BOOSTVOL, ADCLVOL and ADCRVOL = 0dB A-weighted AVDD1=AVDD2=3.3V 85 92.5 dB A-weighted AVDD1=AVDD2=2.5V 92.5 dB 22Hz to 20kHz AVDD1=AVDD2=3.3V 90 dB Signal to Noise Ratio 3 SNR 22Hz to 20kHz AVDD1=AVDD2=2.5V 90 dB -1dBV Input AVDD1=AVDD2=3.3V -83 -78 dBFS Total Harmonic Distortion 4 THD -1dBV Input AVDD1=AVDD2=2.5V -66 dBFS -1dBV Input AVDD1=AVDD2=3.3V -81 -70 dBFS Total Harmonic Distortion + Noise 5 THD+N -1dBV Input AVDD1=AVDD2=2.5V -65 dBFS Channel Separation 6 1kHz input signal 100 dBFS DAC to left and right mixers into 10k Ω / 50pF load on LOUT1 and ROUT1 LOUT1VOL, ROUT1VOL, DACLVOL and DACRVOL = 0dB Full-scale output 1 LOUT1VOL and ROUTVOL = 0dB AVDD1/3.3 Vrms A-weighted AVDD1=AVDD2=3.3V 98 dB A-weighted AVDD1=AVDD2=2.5V 96 dB 22Hz to 20kHz AVDD1=AVDD2=3.3V 95.5 dB Signal to Noise Ratio 3 SNR 22Hz to 20kHz AVDD1=AVDD2=2.5V 93.5 dB 0dBFS input AVDD1=AVDD2=3.3V -84 dBFS Total Harmonic Distortion 4 THD 0dBFS input AVDD1=AVDD2=2.5V -84 dBFS 0dBFS input AVDD1=AVDD2=3.3V -82 dBFS Total Harmonic Distortion + Noise 5 THD+N 0dBFS input AVDD1=AVDD2=2.5V -82 dBFS Channel Separation 6 1kHz signal 100 dB |
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