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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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WM8994ECS/R датащи(PDF) 27 Page - Cirrus Logic |
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WM8994ECS/R датащи(HTML) 27 Page - Cirrus Logic |
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27 / 363 page  WM8994 Rev 4.6 27 DIGITAL INPUT / OUTPUT Test Conditions The following electrical characteristics are valid across the full range of recommended operating conditions. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Digital Input / Output (except DMICDATn and DMICCLK) H16 Input HIGH Level, VIH 0.8 DBVDD V H17 Input LOW Level, VIL 0.2 DBVDD V Note that digital input pins should not be left unconnected / floating. H18 Output HIGH Level, VOH IOL=1mA 0.8 DBVDD V H19 Output LOW Level, VOL IOH=-1mA 0.2 DBVDD V H20 Input capacitance 10 pF H21 Input leakage -0.9 0.9 A Digital Microphone Input / Output (DMICDATn and DMICCLK) H22 DMICDATn input HIGH Level, VIH 0.65 MICBIAS1 V H23 DMICDATn input LOW Level, VIL 0.35 x MICBIAS1 V H24 DMICCLK output HIGH Level, VOH IOL=1mA 0.8 MICBIAS1 V H25 DMICCLK output LOW Level, VOL IOH=-1mA 0.2 x MICBIAS1 V H26 Input capacitance 10 pF H27 Input leakage -0.9 0.9 A DIGITAL FILTER CHARACTERISTICS Test Conditions The following electrical characteristics are valid across the full range of recommended operating conditions. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ADC Decimation Filter Passband +/- 0.05dB 0 0.454 fs -6dB 0.5 fs Passband Ripple +/- 0.05 dB Stopband 0.546 fs Stopband Attenuation f > 0.546 fs -85 dB Group Delay 2 ms DAC Interpolation Filter Passband +/- 0.05dB 0 0.454 fs -6dB 0.5 fs Passband Ripple 0.454 fs +/- 0.05 dB Stopband 0.546 fs Stopband Attenuation f > 0.546 fs -85 dB Group Delay 2 ms |
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