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WM8711 Datasheet(PDF) 9 Page - Wolfson Microelectronics plc |
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WM8711 Datasheet(HTML) 9 Page - Wolfson Microelectronics plc |
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9 / 47 page  Production Data WM8711 / WM8711L w PD Rev 4.4 April 2007 9 POWER CONSUMPTION – WM8711 CURRENT CONSUMPTION TYPICAL MODE DESCRIPTION AVDD (3.3V) HPVDD (3.3V) DCVDD (1.5V) DBVDD (3.3V) UNITS DAC Playback, oscillator and CLKOUT enabled 0 0 0 0 0 3.5 1.7 1.3 1.5 mA DAC Playback, using external MCLK 0 1 1 0 0 3.5 1.7 1.3 0.1 mA Standby 0 1 1 1 1 17 0.4 0.7 0.2 µA Power Down 1 1 1 1 1 0.4 0.3 0.7 0.1 µA Table 1 Powerdown Mode Current Consumption Examples Notes: 1. TA = +25 oC. Slave Mode, fs = 48kHz, MCLK = 256fs (12.288MHz). 2. All figures are quiescent, with no signal. 3. The power dissipation in the headphone itself not included in the above table. ELECTRICAL CHARACTERISTICS – WM8711L Test Conditions AVDD, HPVDD, DBVDD = 1.8V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, TA = +25 oC, Slave Mode, fs = 48kHz, MCLK = 256fs unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Digital Logic Levels (CMOS Levels) Input LOW level VIL 0.3 x DBVDD V Input HIGH level VIH 0.7 x DBVDD V Output LOW VOL IOL = 1mA 0.10 x DBVDD V Output HIGH VOH IOH = -1mA 0.9 x DBVDD V Power On Reset Threshold (DCVDD) DCVDD Threshold On -> Off 0.9 V Hysteresis 0.3 V DCVDD Threshold Off -> On 0.6 V Analogue Reference Levels Reference voltage (VMID) VVMID AVDD/2 V Potential divider resistance RVMID 50k Ω Line Output for DAC Playback Only (Load = 10K Ω. 50pF) 0dBFs Full scale output voltage At LINE outputs 1.0 x AVDD/3.3 Vrms A-weighted, @ fs = 48kHz 85 90 Signal to Noise Ratio (Note 1,2) SNR A-weighted @ fs = 96kHz 90 dB Dynamic Range (Note 2) DR A-weighted, -60dB full scale input 85 90 dB 1kHz, 0dBFs -81 -75 Total Harmonic Distortion THD 1kHz, -3dBFs -88 dB 1kHz 100mVpp 50 Power Supply Rejection Ratio PSRR 20Hz to 20kHz 100mVpp 45 dB |
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