[AK4376A] ■ DAC Short Delay 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 = “1”, DASL bit = “1”) Parameter Symbol Min. Typ. Max. Unit DAC Digital Filter (LPF): Passband PB 0 8.83 kHz 0.07 to +0.025 dB (Note 52) 18.72 kHz 3.0 dB Stopband (Note 52) SB 39.5 kHz Passband Ripple PR +0.025 dB 0.07 Stopband Attenuation (Note 53) SA 75.1 dB Group Delay (Note 54) GD 4.7 1/fs DAC Digital Filter (LPF) + DACANA (Headphone-Amp) @ High performance mode : Frequency Response: 0 to 20.0 kHz FR +0.05 dB 4.16 DAC Digital Filter (LPF) + DACANA (Headphone-Amp) @ Low power mode : Frequency Response: 0 to 20.0 kHz FR +0.03 dB 4.66 Note 52. The passband and stopband frequencies scale with fs (system sampling rate). PB = 0.2002 fs (@0.07/+0.025 dB), SB = 0.8957 fs. Each frequency response refers to that of 1 kHz. Note 53. The bandwidth of the stopband attenuation value is from stopband to fs (system sampling rate). Note 54. 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 Short Delay 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 = “1”, DASL bit = “1”) Parameter Symbol Min. Typ. Max. Unit DAC Digital Filter (LPF): Passband PB 0 19.29 kHz 0.07 to +0.027 dB (Note 55) 40.78 kHz 3.0 dB Stopband (Note 55) SB 86 kHz Passband Ripple PR +0.027 dB 0.07 Stopband Attenuation (Note 56) SA 75.1 dB Group Delay (Note 57) GD 4.7 1/fs DAC Digital Filter (LPF) + DACANA (Headphone-Amp) @ High performance mode : Frequency Response: 0 to 40.0 kHz FR +0.10 dB 3.80 DAC Digital Filter (LPF) + DACANA (Headphone-Amp) @ Low power mode : Frequency Response: 0 to 40.0 kHz FR +0.10 dB 5.26 Note 55. The passband and stopband frequencies scale with fs (system sampling rate). PB = 0.2009 fs (@0.07/+0.027 dB), SB = 0.8958 fs. Each frequency response refers to that of 1 kHz. Note 56. The bandwidth of the stopband attenuation value is from stopband to fs (system sampling rate). Note 57. 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]. 016014206-E-00 2016/11 -21 -
