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WM8986GECO/V Datasheet(PDF) 9 Page - Wolfson Microelectronics plc |
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WM8986GECO/V Datasheet(HTML) 9 Page - Wolfson Microelectronics plc |
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9 / 87 page  Pre-Production WM8986 w PP, Rev 3.1, February 2007 9 Test Conditions DCVDD=1.8V, AVDD1=AVDD2=DBVDD=3.3V, TA = +25 oC, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT AVDD1=AVDD2=2.5V Channel Separation 6 1kHz signal 100 dB DAC to left and right mixer into headphone (16 Ω load on LOUT1 and ROUT1 LOUT1VOL, ROUT1VOL, DACLVOL and DACRVOL = 0dB Full-scale output AVDD1/3.3 Vrms A-weighted 100 dB Signal to Noise Ratio 3 SNR 22Hz to 20kHz 95.5 dB Total Harmonic Distortion 4 THD Po = 20mW, RL=16Ω -75 dB Total Harmonic Distortion + Noise 5 THD+N Po = 20mW, RL=16Ω -75 dB Channel Separation 6 1kHz signal 100 dB DAC to left and right mixer into headphone (16 Ω load) on LOUT2 and ROUT2, Class AB mode LOUT2VOL, ROUT2VOL, DACLVOL and DACRVOL = 0dB Full-scale output AVDD1/3.3 Vrms A-weighted 97 -90 dB Signal to Noise Ratio 3 SNR 22Hz to 20kHz 95.5 dB Total Harmonic Distortion 4 THD Po = 20mW, RL=16Ω -79 -75 dB Channel Separation 6 1kHz signal 100 dB DAC to left and right mixer into headphone load on LOUT2 and ROUT2, Class D mode, Lfilter = 33nH Cfilter = 220nf LOUT2VOL, ROUT2VOL, DACLVOL and DACRVOL = 0dB Full-scale output L/ROUT2VOL = 0dB AVDD1/3.3 -90 Vrms Signal to Noise Ratio 3 SNR A-weighted 80 90 dB Total Harmonic Distortion 4 THD Po = 20mW, RL=16Ω -79 -70 dB Channel Separation 6 1kHz signal 100 dB PWM Rise Time 1.5 ns PWM Fall Time 1.5 ns PWM Switching Frequency DCLKDIV = 1000 1.4 MHz Efficiency RL = 16Ω, tPW = 20ns, PO = 20mW 72 % Power Supply Rejection PSRR 100mVpp ripple @217Hz injected on AVDD2 70 dB Idle Current No analogue output signal on either channel 0.5 mA PGA outputs to left and right output mixers. BYPL2LMIX = 1 and BYPR2RMIX = 1 PGA gain range into mixer Gain adjusted by BYPLMIXVOL and BYPRMIXVOL -15 0 +6 dB BYPLMIXVOL and BYPRMIXVOL gain step into mixer 3 dB Mute attenuation BYPL2LMIX = 0 BYPR2RMIX = 0 100 dB Analogue outputs (LOUT1, ROUT1, LOUT2, ROUT2) Programmable Gain range Gain adjusted by L/ROUT1VOL and L/ROUT2VOL -57 0 +6 dB Programmable Gain step size Monotonic 1 dB Mute attenuation 1kHz, full scale signal L/ROUT1MUTE = 1 L/ROUT2MUTE = 1 85 dB |
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