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LRCK Datasheet(PDF) 8 Page - Asahi Kasei Microsystems |
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LRCK Datasheet(HTML) 8 Page - Asahi Kasei Microsystems |
8 / 19 page ASAHI KASEI [AK5352] 0155-E-00 1997/1 - 8 - DIGITAL FILTER CHARACTERISTICS (Ta=25 °C; VA,VD,VB=5.0V±5%; fs=48kHz) Low Pass Filter characteristics Symbol min typ max Units Passband -0.005dB (Note 12 ) -0.02dB -0.06dB PB 0 21.5 21.768 22.0 kHz Stopband (Note 13 ) SB 26.5 kHz Passband Ripple (Note 14 ) PR ±0.005 dB Stopband Attenuation (Note 13 ,Note 15 ) SR 80 dB Group Delay Distortion ∆GD 0us Group Delay (Note 16 ) GD 29.3 1/fs High Pass Filter characteristics Frequency Response -3dB (Note 12 ) -0.5dB -0.1dB FR 1.0 2.9 6.5 Hz Hz Hz Note 12 : These frequencies scale with the sampling frequency(fs). Note 13 : Stopband is 26.5kHz to 3.0455MHz at fs=48kHz. Note 14 : Passband is DC to 21.5kHz at fs=48kHz. Note 15 : The analog modulator samples the input at 3.072MHz for a system sampling rate of fs=48kHz. These is no rejection of input signals at those bandwidths which are multiples of the sampling frequency (n x 3.072MHz ±22kHz ;n=0,1,2,3… ). Note 16 : The calculation delay time occurred by digital filtering. This is the time from the input of analog signal to setting the 20bit data of both channels to the output registers. GD=29.3/fs. ELECTRICAL CHARACTERISTICS Digital Characteristics (Ta=25 °C; VA,VD,VB=5.0V±5%) Parameter Symbol min typ max Units High-Level Input voltage Low-Level Input voltage VIH VIL 70%VD - - - - 30%VD V V High-Level Output voltage Iout=-20uA Low-Level Output voltage Iout=20uA VOH VOL VD-0.1 - - - - 0.1 V V Input Leakage Current (Note 17 ) Iin - - ±10 uA Note 17 : Except for pull-down and pull-up pins. TST1, TST2, TST3, TST4, SMODE2 pins have internal pull-down device, HPFE pin has internal pull-up device. (TYP.50k Ω) |
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