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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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WM8903 датащи(PDF) 13 Page - Wolfson Microelectronics plc |
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WM8903 датащи(HTML) 13 Page - Wolfson Microelectronics plc |
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13 / 178 page  Production Data WM8903 w PD, Rev 4.5, June 2012 13 Stereo Playback to Line-out - DAC input to LINEOUTL+LINEOUTR pins with 3.01k / 50pF load Test conditions: LINEOUTL_VOL = LINEOUTR_VOL = 111001b (0dB) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Full Scale Output Signal Level DAC 0dBFS output at 0dB volume 0.95 -0.446 2.69 1.0 0 2.83 1.05 0.424 2.97 Vrms dBV Vpk-pk DC offset DC servo enabled. Calibration complete. 0 +/-1.5 mV Signal to Noise Ratio SNR A-weighted 90 95 dB Total Harmonic Distortion THD 3.01k load -86 -77 dB Total Harmonic Distortion + Noise THD+N 3.01k load -84 -75 dB Channel Separation 1kHz signal, 0dBFS 100 dB 10kHz signal, 0dBFS 85 Channel Level Matching 1kHz signal, 0dBFS +/-1dB dB Power Supply Rejection Ratio PSRR 1kHz, 100mVpk-pk 60 dB 20kHz, 100mV pk-pk 40 Stereo Playback to Differential Line-out - DAC input to LOP+LON or ROP+RON pins with 10k / 50pF load Test conditions: SPKR_LVOL = SPKR_RVOL = 111001b (0dB) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX Full Scale Output Signal Level 0dBFS Measured Differentially 0.95 -0.446 2.69 1.0 0 2.83 1.05 0.424 2.97 Vrms dBV Vpk-pk Common mode output level AVDD/2 Common mode output error +/-7 mV Signal to Noise Ratio SNR A-weighted 90 95 dB Total Harmonic Distortion THD -92 -82 dB Total Harmonic Distortion + Noise THD+N -88 -80 dB Channel Separation 1kHz signal, 0dBFS 100 dB 10kHz signal, 0dBFS 85 Channel Level Matching 1kHz signal +/-1dB dB Power Supply Rejection Ratio PSRR 1kHz, 100mVpk-pk 60 dB 20kHz, 100mV pk-pk 40 Output PGAs (HP, LINE and Differential LINE) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Minimum PGA gain setting -57 dB Maximum PGA gain setting 6 dB PGA Gain Step Size 1 dB PGA gain accuracy +6dB to 0dB -1.5 +1.5 dB PGA gain accuracy 0dB to -57dB -1 +1 dB Mute attenuation HPOUTL/R 77 dB LINEOUTL/R 79 Differential LINE (LOP-LOR/ROP-RON) 105 dB |
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