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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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WM8786GEDS/V датащи(PDF) 6 Page - Wolfson Microelectronics plc |
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WM8786GEDS/V датащи(HTML) 6 Page - Wolfson Microelectronics plc |
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6 / 22 page  WM8786 Pre-Production w PP Rev 3.0 December 2005 6 ELECTRICAL CHARACTERISTICS Test Conditions DVDD = 3.3V, AVDD = 5.0V, TA = +25 oC, 1kHz signal, A-weighted, fs = 48kHz, MCLK = 256fs, 24-bit audio data, Slave Mode unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT ADC Performance Full Scale Input Signal Level (for ADC 0dB Input) 2.0 Vrms Input resistance 10 kΩ Input capacitance 10 pF A-weighted, @ fs = 48kHz 104 111 dB Signal to Noise Ratio (Note 1,2,4) SNR Unweighted, @ fs = 48kHz 108 dB A-weighted, @ fs = 96kHz 111 dB Signal to Noise Ratio (Note 1,2,4) SNR Unweighted, @ fs = 96kHz 108 dB A-weighted, @ fs = 192kHz 111 dB Signal to Noise Ratio (Note 1,2,4) SNR Unweighted, @ fs = 192kHz 108 dB 1kHz, -0.1dB Full Scale @ fs = 48kHz -102 dB 1kHz, -0.1dB Full Scale @ fs = 96kHz -102 dB Total Harmonic Distortion THD 1kHz, -0.1dB Full Scale @ fs = 192kHz -102 dB Total Harmonic Distortion THD 1kHz, -0.1dB Full Scale @ fs = 48kHz 0.0008 % 1kHz, -0.1dB Full Scale @ fs = 96kHz 0.0008 % 1kHz, -0.1dB Full Scale @ fs = 192kHz 0.0008 % Dynamic Range DNR -60dBFS 104 111 dB Channel Level Matching 20kHz signal 0.1 dB 1kHz 100mVpp, applied to AVDD, DVDD 50 dB Power Supply Rejection Ratio PSRR 20Hz to 20kHz 100mVpp 45 dB Digital Logic Levels (CMOS Levels) Input LOW level VIL 0.3 x DVDD V Input HIGH level VIH 0.7 x DVDD V Input leakage current -1 ±0.2 +1 µA Input capacitance 5 pF Output LOW VOL IOL=1mA 0.1 x DVDD V Output HIGH VOH IOH= -1mA 0.9 x DVDD V Analogue Reference Levels Midrail Reference Voltage VMID AVDD to VMID and VMID to VREFGND –3% AVDD/2 +3% V Potential Divider Resistance RVMID AVDD to VMID and VMID to GND 50 kΩ Buffered Reference Voltage VREF –3% 0.8 x AVDD +3% V |
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