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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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WM8728 Arkusz danych(PDF) 4 Page - Wolfson Microelectronics plc |
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WM8728 Arkusz danych(HTML) 4 Page - Wolfson Microelectronics plc |
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4 / 28 page  WM8728 Product Preview WOLFSON MICROELECTRONICS LTD PP Rev 1.2 April 2001 4 DC ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Digital supply range DVDD 3.0 5.5 V Analogue supply range AVDD 3.0 5.5 V Ground AGND, DGND 0 V Difference DGND to AGND -0.3 0 +0.3 V Analogue supply current AVDD = 5V 19 mA Digital supply current DVDD = 5V 8 mA Analogue supply current AVDD = 3.3V 18 mA Digital supply current DVDD = 3.3V 4 mA ELECTRICAL CHARACTERISTICS Test Conditions AVDD, DVDD = 5V, AGND = 0V, DGND = 0V, TA = +25 oC, fs = 48kHz, MCLK = 256fs unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Digital Logic Levels (TTL Levels) Input LOW level VIL 0.8 V Input HIGH level VIH 2.0 V Output LOW VOL IOL = 1mA AGND + 0.3V V Output HIGH VOH IOH = 1mA AVDD – 0.3V V Analogue Reference Levels Reference voltage VMID (VREFP - VREFN)/2 - 50mV (VREFP - VREFN)/2 (VREFP - VREFN)/2 + 50mV V Potential divider resistance RVMID 12k ohms DAC Output (Load = 10k ohms. 50pF) 0dBFs Full scale output voltage At DAC outputs 1.1 x AVDD/5 Vrms SNR (Note 1,2,3) A-weighted, @ fs = 48kHz 100 106 dB SNR (Note 1,2,3) A-weighted @ fs = 96kHz 106 dB SNR (Note 1,2,3) A-weighted @ fs = 192kHz 106 dB SNR (Note 1,2,3) A-weighted, @ fs = 48kHz AVDD, DVDD = 3.3V 105 dB SNR (Note 1,2,3) A-weighted @ fs = 96kHz AVDD, DVDD = 3.3V 103 dB SNR (Note 1,2,3) Non ‘A’ weighted @ fs = 48kHz 106 dB THD (Note 1,2,3) 1kHz, 0dBFs -97 dB THD+N (Dynamic range, Note 2) 1kHz, -60dBFs 100 106 dB DAC channel separation 100 dB Analogue Output Levels Load = 10k Ohms, 0dBFS 1.1 VRMS Output level Load = 10k Ohms, 0dBFS, (AVDD = 3.3V) 0.726 VRMS Gain mismatch channel-to-channel ±1 %FSR |
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