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WM8741GEDS/RV Datasheet(PDF) 11 Page - Wolfson Microelectronics plc |
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WM8741GEDS/RV Datasheet(HTML) 11 Page - Wolfson Microelectronics plc |
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11 / 64 page ![]() Production Data WM8741 w PD, Rev 4.2, October 2009 11 TEST CONDITIONS AVDD = 5V, DVDD = 3.3V, AGND, DGND = 0V, TA = +25 oC, 1kHz test signal, fs = 48kHz, MCLK = 512fs unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Internal Analogue Filter Bandwidth -3dB 474 kHz Passband edge response 20kHz -0.0077 dB Analogue Output Levels PCM full scale differential output level Into 10kΩ load, 0dBFS input 2 VRMS DSD Direct differential output level Into 10kΩ load, 0dBDSD input 0.948 VRMS DSD Plus differential output level Into 10kΩ load, 0dBDSD input 0.991 VRMS Minimum resistance load To midrail or AC coupled 2 kΩ Maximum capacitance load 1 nF Output DC level AVDD/2 V Reference Levels Potential divider resistance AVDD to VMIDL/VMIDR and VMIDL/VMIDR to AGND 10 kΩ Voltage at VMIDL/VMIDR AVDD/2 V Notes: 1. Ratio of output level with 1kHz full scale input, to the output level with all zeros into the digital input, measured ‘A’ weighted over a 20Hz to 20kHz bandwidth. 2. All performance measurements done with 20kHz low pass filter. Failure to use such a filter will result in higher THD and lower SNR and Dynamic Range readings than are found in the Electrical Characteristics. The low pass filter removes out of band noise; although it is not audible it may affect dynamic specification values. |
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