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AK4376A Scheda tecnica(PDF) 17 Page - Asahi Kasei Microsystems |
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AK4376A Scheda tecnica(HTML) 17 Page - Asahi Kasei Microsystems |
17 / 68 page [AK4376A] 016014206-E-00 2016/11 - 17 - ■ DAC Slow Roll-Off Filter (fs = 44.1 kHz) (Ta = 40 to 85C; AVDD = CVDD = LVDD = 1.7 to 1.9 V; TVDD = 1.65 to 3.6 V; fs = 44.1 kHz; DASD bit = “0”, DASL bit = “1”) Parameter Symbol Min. Typ. Max. Unit DAC Digital Filter(LPF): Passband 0.07 to +0.006 dB PB 0 - 7.7 kHz (Note 34) 3.0 dB - 18.34 - kHz Stopband (Note 34) SB 39.1 - - kHz Passband Ripple PR 0.07 - +0.006 dB Stopband Attenuation (Note 35) SA 72.8 - - dB Group Delay (Note 36) GD - 26 - 1/fs DAC Digital Filter (LPF) + DACANA (Headphone-Amp) @ High performance mode : Frequency Response: 0 to 20.0 kHz FR 4.44 - +0.03 dB DAC Digital Filter (LPF) + DACANA (Headphone-Amp) @ Low power mode : Frequency Response: 0 to 20.0 kHz FR 5.00 - +0.03 dB Note 34. The passband and stopband frequencies scale with fs (system sampling rate). PB = 0.1746 fs (@0.07/+0.006 dB), SB = 0.887 x fs. Each frequency response refers to that of 1 kHz. Note 35. The bandwidth of the stopband attenuation value is from stopband to fs (system sampling rate). Note 36. The calculated delay time is resulting from digital filtering. This is the time from the input of MSB for Lch of SDATA to the output of an analog signal. The error of the delay at audio interface is within +1 [1/fs]. ■ DAC Slow Roll-Off Filter (fs = 96 kHz) (Ta = 40 to 85C; AVDD = CVDD = LVDD = 1.7 to 1.9 V; TVDD = 1.65 to 3.6 V; fs = 96 kHz; DASD bit = “0”, DASL bit = “1”) Parameter Symbol Min. Typ. Max. Unit DAC Digital Filter (LPF): Passband 0.07 to +0.007 dB PB 0 - 16.76 kHz (Note 37) 3.0 dB - 39.9 - kHz Stopband (Note 37) SB 85.2 - - kHz Passband Ripple PR 0.07 - +0.007 dB Stopband Attenuation (Note 38) SA 72.8 - - dB Group Delay (Note 39) GD - 26 - 1/fs DAC Digital Filter (LPF) + DACANA (Headphone-Amp) @ High performance mode: Frequency Response: 0 to 40.0 kHz FR 4.00 - +0.10 dB DAC Digital Filter (LPF) + DACANA (Headphone-Amp) @ Low power mode: Frequency Response: 0 to 40.0 kHz FR 5.46 - +0.10 dB Note 37. The passband and stopband frequencies scale with fs (system sampling rate). PB = 0.1746 fs (@0.07/+0.007 dB), SB = 0.887 x fs. Each frequency response refers to that of 1 kHz. Note 38. The bandwidth of the stopband attenuation value is from stopband to fs (system sampling rate). Note 39. The calculated delay time is resulting from digital filtering. This is the time from the input of MSB for Lch of SDATA to the output of an analog signal. The error of the delay at audio interface is within +1 [1/fs]. |
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