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ADAV4622BSTZ 数据表(PDF) 7 Page - Analog Devices |
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ADAV4622BSTZ 数据表(HTML) 7 Page - Analog Devices |
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7 / 28 page  ADAV4622 Rev. B | Page 7 of 28 Parameter Min Typ Max Unit Test Conditions/Comments ADC SECTION Number of Channels 4 Two stereo channels Full-Scale Input Level 100 μA rms Resolution 24 Bits Dynamic Range (Stereo Channel) A-Weighted 95 dB −60 dBFS with respect to full-scale analog input Total Harmonic Distortion + Noise (Stereo Channel) −90 dB −3 dBFS with respect to full-scale analog input Gain Mismatch 0.2 dB Left- and right-channel gain mismatch Crosstalk (Left to Right, Right to Left) −110 dB Gain Error −1 dB Input signal is 100 μA rms Current Setting Resistor (RISET) 20 kΩ External resistor to set current input range of ADC for nominal 2.0 V rms input signal Power Supply Rejection −87 dB 1 kHz, 300 mV p-p signal at AVDD ADC DIGITAL DECIMATOR FILTER CHARACTERISTICS At 48 kHz, guaranteed by design Pass Band 22.5 kHz Pass-Band Ripple ±0.0002 dB Stop Band 26.5 kHz Stop-Band Attenuation 100 dB Group Delay 1040 μs PWM SECTION Frequency 384 kHz Guaranteed by design Modulation Index 0.976 Guaranteed by design Dynamic Range A-Weighted 98 dB −60 dB with respect to full-scale code input Total Harmonic Distortion + Noise −78 dB −3 dB with respect to full-scale code input DAC SECTION Number of Auxiliary Output Channels 8 Four stereo channels Resolution 24 Bits Full-Scale Analog Output 1 V rms Dynamic Range A-Weighted 94 dB −60 dBFS with respect to full-scale code input Total Harmonic Distortion + Noise −86 dB −3 dBFS with respect to full-scale code input Crosstalk (Left to Right, Right to Left) −102 dB Interchannel Gain Mismatch 0.1 dB Left- and right-channel gain mismatch Gain Error 0.525 dB 1 V rms output DC Bias 1.53 V Power Supply Rejection −90 dB 1 kHz, 300 mV p-p signal at AVDD Output Impedance 235 Ω DAC DIGITAL INTERPOLATION FILTER CHARACTERISTICS At 48 kHz, guaranteed by design Pass Band 21.769 kHz Pass-Band Ripple ±0.01 dB Transition Band 23.95 kHz Stop Band 26.122 kHz Stop-Band Attenuation 75 dB Group Delay 580 μs HEADPHONE AMPLIFIER Measured at headphone output with 32 Ω load Number of Channels 4 Two stereo channels Full-Scale Output Power 31 mW rms 1 V rms output Dynamic Range A-Weighted 93 dB −60 dBFS with respect to full-scale code input Total Harmonic Distortion + Noise −83 dB −3 dBFS with respect to full-scale code input Interchannel Gain Mismatch 0.1 dB DC Bias 1.53 V Power Supply Rejection −85 dB 1 kHz, 300 mV p-p signal at AVDD |
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