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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) 9 Page - Wolfson Microelectronics plc |
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WM8985GEFL/R датащи(HTML) 9 Page - Wolfson Microelectronics plc |
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9 / 118 page  Pre-Production WM8985 w PP, Rev 3.5, January 2007 9 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 Auxiliary Analogue Inputs (AUXL, AUXR) Full-scale Input Signal Level 2 AVDD/3.3 Vrms Left Input boost and mixer enabled, at +6dB 11 k Ω Left Input boost and mixer enabled, at 0dB gain 22 k Ω Left Input boost and mixer enabled, at -12dB gain 60 k Ω Right Input boost, mixer enabled, at +6dB gain 11 k Ω Right Input boost, mixer enabled, at 0dB gain 22 k Ω Input Resistance Right Input boost, mixer enabled, at -12dB gain 60 k Ω Input Capacitance All analogue Inputs 10 pF Gain range from AUXL and AUXR input to left and right input PGA mixers Gain adjusted by AUXL2BOOSTVOL and AUXR2BOOSTVOL -12 +6 dB AUXLBOOSTVOL and AUXRBOOSTVOL step size 3 dB L2, R2 Line Input Programmable Gain Gain range from L2/R2 input to left and right input PGA mixers Gain adjusted by L2_2BOOSTVOL and R2_2BOOSTVOL -12 +6 dB L2/R2_2BOOSTVOL step size 3 dB L2/R2_2BOOSTVOL mute attenuation 100 dB OUT4 to left or right input boost record path Gain range into left and right input PGA mixers Gain adjusted by OUT4_2ADCVOL -6 +12 dB OUT4_2ADCVOL gain step size 3 dB OUT4_2ADCVOL mute attenuation 100 dB Analogue to Digital Converter (ADC) - Input from LIN/P and RIN/P in differential configuration to input PGA INPPGAVOLL, INPPGAVOLR, PGABOOSTL, PGABOOSTR, ADCLVOL and ADCRVOL = 0dB A-weighted AVDD1=AVDD2=3.3V 92.5 dB A-weighted AVDD1=AVDD2=2.5V 91.5 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 -7dBV Input AVDD1=AVDD2=3.3V -75 -70 dB Total Harmonic Distortion 4 THD -7dBV Input AVDD1=AVDD2=2.5V -75 dB -7dBV Input AVDD1=AVDD2=3.3V -72 -68 dB Total Harmonic Distortion + Noise 5 THD+N -7dBV Input AVDD1=AVDD2=2.5V -72 dB Channel Separation 6 1kHz full scale input signal 100 dB Analogue to Digital Converter (ADC) - Input from L2, R2 into left and right PGA mixer. INPPGAVOLL, INPPGAVOLR, |
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