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WM8998 Datasheet(PDF) 18 Page - Wolfson Microelectronics plc |
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WM8998 Datasheet(HTML) 18 Page - Wolfson Microelectronics plc |
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18 / 307 page  WM8998 Production Data w PD, October 2014, Rev 4.0 18 Test Conditions DBVDD1 = DBVDD2 = DBVDD3 = LDOVDD = CPVDD = AVDD = 1.8V, DCVDD = 1.2V (powered from LDO1), MICVDD = 3.0V (powered from LDO2), SPKVDDL = SPKVDDR = 4.2V, TA = +25ºC, 1kHz sinusoid signal, fs = 48kHz, Input PGA gain = 0dB, 24-bit audio data unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT DAC to Line Output (LINEOUTL, LINEOUTR; Load = 10kΩ, 50pF) Full-scale output signal level VOUT 0dBFS input 1 0 Vrms dBV Signal to Noise Ratio SNR A-weighted, Output signal = 1Vrms 114 122 dB Total Harmonic Distortion THD 0dBFS input -90 dB Total Harmonic Distortion Plus Noise THD+N 0dBFS input -89 -73 dB Channel separation (Left/Right) 110 dB Output noise floor A-weighted 1 2 µVRMS PSRR (DBVDDn, LDOVDD, CPVDD, AVDD) PSRR 100mV (peak-peak) 217Hz 127 dB 100mV (peak-peak) 10kHz 90 PSRR (SPKVDDL, SPKVDDR) PSRR 100mV (peak-peak) 217Hz 130 dB 100mV(peak-peak) 10kHz 85 DAC to Earpiece Output (EPOUTP+EPOUTN, RL = 32Ω BTL) Maximum output power PO 0.1% THD+N 83 mW 5% THD+N 100 Signal to Noise Ratio SNR A-weighted, Output signal = 2Vrms 118 127 dB Total Harmonic Distortion THD PO = 50mW -92 dB Total Harmonic Distortion Plus Noise THD+N PO = 50mW -90 dB Total Harmonic Distortion THD PO = 5mW -85 dB Total Harmonic Distortion Plus Noise THD+N PO = 5mW -83 -73 dB Output noise floor A-weighted 1 2.5 µVRMS PSRR (DBVDDn, LDOVDD, CPVDD, AVDD) PSRR 100mV (peak-peak) 217Hz 113 dB 100mV (peak-peak) 10kHz 115 PSRR (SPKVDDL, SPKVDDR) PSRR 100mV (peak-peak) 217Hz 130 dB 100mV(peak-peak) 10kHz 100 DAC to Earpiece Output (EPOUTP+EPOUTN, RL = 16Ω BTL) Maximum output power PO 0.1% THD+N 83 mW 10% THD+N 110 Signal to Noise Ratio SNR A-weighted, Output signal = 2Vrms 127 dB Total Harmonic Distortion THD PO = 50mW -92 dB Total Harmonic Distortion Plus Noise THD+N PO = 50mW -90 dB Total Harmonic Distortion THD PO = 5mW -90 dB Total Harmonic Distortion Plus Noise THD+N PO = 5mW -88 dB Output noise floor A-weighted 1 µVRMS PSRR (DBVDDn, LDOVDD, CPVDD, AVDD) PSRR 100mV (peak-peak) 217Hz 113 dB 100mV (peak-peak) 10kHz 115 PSRR (SPKVDDL, SPKVDDR) PSRR 100mV (peak-peak) 217Hz 130 dB 100mV(peak-peak) 10kHz 100 |
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