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AK4522VM Datasheet(PDF) 6 Page - Asahi Kasei Microsystems |
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AK4522VM Datasheet(HTML) 6 Page - Asahi Kasei Microsystems |
6 / 19 page ASAHI KASEI [AK4522] M0020-E-02 2012/01 - 6 - FILTER CHARACTERISTICS (Ta=25 °C; VA=4.5 ∼ 5.5V, VD=2.7 ∼ 5.5V; fs=44.1kHz; DEM0=”1”, DEM1=”0”) Parameter Symbol min typ max Units ADC Digital Filter (Decimation LPF): Passband (Note 10) -0.005dB -0.02dB -0.06dB -6.0dB PB 0 0 0 0 19.76 20.02 20.20 22.05 kHz kHz kHz kHz Stopband SB 24.34 kHz Passband Ripple PR ±0.005 dB Stopband Attenuation SA 80 dB Group Delay (Note 11) GD 29.3 1/fs Group Delay Distortion ΔGD 0 us ADC Digital Filter (HPF): Frequency Response (Note 10) -3dB -0.5dB -0.1dB FR 0.9 2.7 6.0 Hz Hz Hz DAC Digital Filter: Passband (Note 10) -0.06dB -6.0dB PB 0 0 20.0 22.05 kHz kHz Stopband SB 24.1 kHz Passband Ripple PR ±0.06 dB Stopband Attenuation SA 43 dB Group Delay (Note 11) GD 14.7 1/fs DAC Digital Filter + Analog Filter: Frequency Response: 0 ∼ 20.0kHz FR ±0.2 dB Note:10. The passband and stopband frequencies scale with fs. For example, 20.02kHz at -0.02dB is 0.454 x fs. The reference frequency of these responses is 1kHz. 11. The calculating delay time which occurred by digital filtering. This time is from the input of analog signal to setting the 20bit data of both channels to the output register for ADC. For DAC, this time is from setting the 20bit data of both channels on input register to the output of analog signal. DIGITAL CHARACTERISTICS (Ta=25 °C; VA=4.5 ∼ 5.5V, VD=2.7 ∼ 5.5V) Parameter Symbol min typ Max Units High-Level Input Voltage (Except CMODE pin) Low-Level Input Voltage (Except CMODE pin) VIH VIL 70%VD - - - - 30%VD V V High-Level Input Voltage (CMODE pin) Low-Level Input Voltage (CMODE pin) VIH VIL 95%VD - - - - 10%VD V V Hight-Level Output Voltage (Iout=-80uA) Low-Level Output Voltage (Iout=80uA) VOH VOL VD-0.4 - - - - 0.4 V V Input Leakage Current (Note 12) Iin - - ±10 uA Note: 12. CMODE pin has internal pull-up and pull-down devices, nominally 50kohm. |
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