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CS42418 датащи(PDF) 51 Page - Cirrus Logic |
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CS42418 датащи(HTML) 51 Page - Cirrus Logic |
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51 / 67 page ![]() 51 CS42418 ANALOG INPUT CHARACTERISTICS (T A = 25° C; VA = 5 V, VD = 3.3 V, Logic "0" = DGND =AGND = 0 V; Logic "1" = VLS = VLC = 5 V; Measurement Bandwidth 10 Hz to 20 kHz unless otherwise specified. Full scale input sine wave, 997 Hz.; OMCK = 12.288 MHz; Single speed Mode DAC_SCLK = 3.072 MHz; Double Speed Mode DAC_SCLK = 6.144 MHz; Quad Speed Mode DAC_SCLK = 12.288 MHz.) Parameter (Note 3) Symbol CS42418-CQ Min Typ Max CS42418-DQ Min Typ Max Unit Single Speed Mode (Fs=48 kHz) Dynamic Range A-weighted unweighted 108 105 114 111 - - 106 103 114 111 - - dB dB Total Harmonic Distortion + Noise (Note 4) -1 dB -20 dB -60 dB THD+N - - - -100 -91 -51 -94 - - - - - -100 -91 -51 -92 - - dB dB dB Double Speed Mode (Fs=96 kHz) Dynamic Range A-weighted unweighted 40 kHz bandwidth unweighted 108 105 - 114 111 108 - - - 106 103 - 114 111 108 - - - dB dB dB Total Harmonic Distortion + Noise (Note 4) -1 dB -20 dB -60 dB 40kHz bandwidth -1 dB THD+N - - - - -100 -91 -51 -97 -94 - - - - - - - -100 -91 -51 -97 -92 - - - dB dB dB dB Quad Speed Mode (Fs=192 kHz) Dynamic Range A-weighted unweighted 40 kHz bandwidth unweighted 108 105 - 114 111 108 - - - 106 103 - 114 111 108 - - - dB dB dB Total Harmonic Distortion + Noise (Note 4) -1 dB -20 dB -60 dB 40 kHz bandwidth -1 dB THD+N - - - - -100 -91 -51 -97 -94 - - - - - - - -100 -91 -51 -97 -92 - - - dB dB dB dB Dynamic Performance for All Modes Interchannel Isolation - 110 - - 110 - dB Interchannel Phase Deviation - 0.0001 - - 0.0001 - Degree DC Accuracy Interchannel Gain Mismatch - 0.1 - - 0.1 - dB Gain Drift - +/-100 - - +/-100 - ppm/°C Offset Error HPF_FREEZE enabled HPF_FREEZE disabled - - 0 100 - - - - 0 100 - - LSB LSB Analog Input Full-scale Differential Input Voltage 1.9 2.0 2.1 1.8 2.0 2.2 Vrms Input Impedance(differential) (Note 5) 37 - - 37 - - k Ω Common Mode Rejection Ratio CMRR - 82 - - 82 - dB VQ Nominal Voltage Output Impedance Maximum allowable DC current - - - 2.7 50 0.01 - - - - - - 2.7 50 0.01 - - - V k Ω mA |
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