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WM8750CJLGEFL Datasheet(PDF) 7 Page - Wolfson Microelectronics plc |
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WM8750CJLGEFL Datasheet(HTML) 7 Page - Wolfson Microelectronics plc |
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7 / 61 page  Production Data WM8750JL w PD, April 2012, Rev 4.1 7 Test Conditions DCVDD = 1.5V, DBVDD = 3.3V, AVDD = HPVDD = 3.3V, TA = +25 oC, 1kHz signal, fs = 48kHz, ADCOSR=1, DACOSR=1, PGA gain = 0dB, 24-bit audio data unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Speaker Output (LOUT2/ROUT2 with 8 bridge tied load, ROUT2INV=1) Output Power at 1% THD PO THD = 1% 330 mW (rms) Maximum Achievable Output Power POmax AVDD=HPVDD=3.3V, RL=8 400 mW (rms) Total Harmonic Distortion THD Po=200mW, RL=8, HPVDD=3.3V -60 0.1 dB % Signal to Noise Ratio (A-weighted) SNR HPVDD=3.3V, RL=8 95 dB Analogue Reference Levels Midrail Reference Voltage VMID –3% AVDD/2 +3% V Buffered Reference Voltage VREF –3% AVDD/2 +3% V Microphone Bias Bias Voltage VMICBIAS 3mA load current –5% 0.9 AVDD + 5% V Bias Current Source IMICBIAS 3 mA Output Noise Voltage Vn 1K to 20kHz 15 nV/ Hz Digital Input / Output Input HIGH Level VIH 0.7 DBVDD V Input LOW Level VIL 0.3 DBVDD V Output HIGH Level VOH IOH = +1mA 0.9 DBVDD V Output LOW Level VOL IOL = -1mA 0.1 DBVDD V HPDETECT (pin 23) Input HIGH Level VIH 0.7 AVDD V Input LOW Level VIL 0.3 AVDD V |
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