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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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WM8731SEDS/RV датащи(PDF) 7 Page - Wolfson Microelectronics plc |
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WM8731SEDS/RV датащи(HTML) 7 Page - Wolfson Microelectronics plc |
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7 / 65 page  WM8731 / WM8731L Production Data w PD, Rev 4.9, October 2012 7 ELECTRICAL CHARACTERISTICS – WM8731 Test Conditions AVDD, HPVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, TA = +25 oC, Slave Mode, fs = 48kHz, XTI/MCLK = 256fs unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Digital Logic Levels (CMOS Levels) Input LOW level VIL 0.3 x DBVDD V Input HIGH level VIH 0.7 x DBVDD V Output LOW VOL 0.10 x DBVDD V Output HIGH VOH 0.9 x DBVDD V Power On Reset Threshold (DCVDD) DCVDD Threshold On -> Off Vth 0.9 V Hysteresis VIH 0.3 V DCVDD Threshold Off -> On VOL 0.6 V Analogue Reference Levels Reference voltage (VMID) VVMID AVDD/2 V Potential divider resistance RVMID 50k Ω Line Input to ADC Input Signal Level (0dB) VINLINE 1.0 AVDD/3.3 Vrms Signal to Noise Ratio (Note 1,3) SNR A-weighted, 0dB gain @ fs = 48kHz 85 90 dB A-weighted, 0dB gain @ fs = 96kHz 90 A-weighted, 0dB gain @ fs = 48kHz, AVDD = 2.7V 88 Dynamic Range (Note 3) DR A-weighted, -60dB full scale input 85 90 dB Total Harmonic Distortion THD -1dB input, 0dB gain -84 0.006 -74 0.02 dB % Power Supply Rejection Ratio PSRR 1kHz, 100mVpp 50 dB 20Hz to 20kHz, 100mVpp 45 ADC channel separation 1kHz input 90 dB Programmable Gain 1kHz input Rsource < 50Ω -34.5 0 +12 dB Programmable Gain Step Size Guaranteed Monotonic 1.5 dB Mute attenuation 0dB, 1kHz input 80 dB Input Resistance RINLINE 0dB gain 20k 30k Ω 12dB gain 10k 15k Input Capacitance CINLINE 10 pF |
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