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WM8740 Datasheet(PDF) 4 Page - Wolfson Microelectronics plc |
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WM8740 Datasheet(HTML) 4 Page - Wolfson Microelectronics plc |
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4 / 20 page  WM8740 Advanced Information WOLFSON MICROELECTRONICS LTD AI Rev 1.7 July 2000 4 RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Digital supply range DVDD -10% 3.3 to 5 +10% V Analogue supply range AVDD -10% 3.3 to 5 +10% V Ground AGND, DGND 0 V Difference DGND to AGND -0.3 0 +0.3 V Analogue supply current AVDD = 5V 15 mA Digital supply current DVDD = 5V 15 mA Analogue supply current AVDD = 3.3V 15 mA Digital supply current DVDD = 3.3V 9 mA ELECTRICAL CHARACTERISTICS TEST CONDITIONS AVDD, DVDD = 5V, AGND, DGND = 0V, TA = +25 oC, fs = 48kHz, SCKI = 256fs unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT DAC Circuit Specifications Mono fs @ 48kHz 120 dB Stereo fs @ 48kHz 110 117 dB SNR (See Note 1) Stereo fs @ 96kHz 116 dB Mono 0dB -104 dB THD (full-scale) (See Note 2) Stereo 0dB -95 -104 dB THD+N (Dynamic range) (See Note 2) -60dB 117 dB Filter Characteristics (Sharp Roll-off) Passband ±0.0012 dB 0.4535fs dB Stopband -3dB 0.491fs Passband ripple ±0.0012 dB Stopband attenuation f > 0.5465fs -82 dB Delay time 30/fs s Filter Characteristics (Slow Roll-off) Passband ±0.001dB 0.274fs Stopband -3dB 0.459fs Passband ripple ±0.001 dB Stopband attenuation f > 0.732fs -82 dB Delay time 9/fs s Internal Analogue Filter Bandwidth -3dB 195 kHz Passband edge response 20kHz -0.043 dB Digital Logic Levels Input LOW level VIL 0.8 Input HIGH level VIH 2.0 V Output LOW level VOL IOL = 2mA AVSS + 0.3V V Output HIGH level VOH IOH = 2mA AVDD - 0.3V |
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Similar Description - WM8740 |
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