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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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WM8961 bảng dữ liệu(PDF) 8 Page - Wolfson Microelectronics plc |
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WM8961 bảng dữ liệu(HTML) 8 Page - Wolfson Microelectronics plc |
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8 / 116 page  WM8961 Pre-Production w PP, August 2009, Rev 3.1 8 ELECTRICAL CHARACTERISTICS Test Conditions MICVDD = 2.5V, DVDD = 1.8V, CPVDD=1.8V, AVDD = 1.8V SPKVDD1 = SPKVDD2 = 5V, TA = +25 oC, 1kHz signal, fs = 48kHz, PGA gain = 0dB, 24-bit audio data unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Analogue Inputs (LINPUT, RINPUT) Full-scale Input Signal Level – note this changes in proportion to AVDD VINFS L/RINPUT Single-ended 500 -6.02 mVrms dBV Mic PGA equivalent input noise 20Hz to 20kHz, +24dB gain 3 uV Input resistance L/RINPUT +24dB PGA gain 3.5 k Ω L/RINPUT 0dB PGA gain 28 k Ω L/RINPUT -23.25dB PGA gain 53 k Ω Input capacitance Cin 10 pF MIC Programmable Gain Amplifier (PGA) Programmable Gain Input from L/RINPUT -23.25 24 dB Programmable Gain Step Size Guaranteed monotonic 0.75 dB Mute Attenuation 85 dB Selectable Input Gain Boost Gain Boost Steps Input from PGA 0, 13, 20, 29 dB Analogue Inputs (LINPUT, RINPUT) to ADC out Signal to Noise Ratio (A-weighted) SNR 80 88 dB Total Harmonic Distortion Plus Noise THD+N -1dBFS input -82 -75 dB Total Harmonic Distortion THD -1dBFS input -86 -75 dB ADC Channel Separation 1kHz 97 dB 10kHz 97 dB PSRR 100mV(peak-peak) 1kHz applied to AVDD 60 dB PSRR 100mV(peak-peak) 20kHz applied to AVDD 40 dB Channel Matching 1kHz signal +/-0.5 dB DAC to HP_L, HP_R (used as Line output) with 10k Ω / 50pF load: standard headphone playback mode Full scale output voltage L/ROUTVOL = 0dB 1.0 Vrms Signal to Noise Ratio (A-weighted) SNR 87 97 dB Total Harmonic Distortion Plus Noise THD+N 10k Ω load -78 -67 dB Total Harmonic Distortion THD 10k Ω load -79 -68 dB Channel Separation 1kHz full scale signal 100 dB 10kHz full scale signal 85 PSRR (AVDD) 100mV(peak-peak) 1kHz 60 dB 100mV(peak-peak) 20kHz 58 dB DC offset DC servo is enabled -1.5 +1.5 mV |
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