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AK4554 Folha de dados(PDF) 6 Page - Asahi Kasei Microsystems |
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AK4554 Folha de dados(HTML) 6 Page - Asahi Kasei Microsystems |
6 / 17 page ASAHI KASEI [AK4554] MS0325-E-01 2005/08 - 6 - FILTER CHARACTERISTICS (Ta=25 °C; VDD=1.6 ∼ 3.6V; fs=44.1kHz; DEM1 pin = “L”, DEM0 pin = “H”) Parameter Symbol min typ max Units ADC Digital Filter (Decimation LPF): Passband (Note 6) ±0.1dB PB 0 - 17.4 kHz −1.0dB - 20.0 - kHz −3.0dB - 21.1 - kHz Stopband SB 25.7 - - kHz Passband Ripple PR - - ±0.1 dB Stopband Attenuation SA 65 - - dB Group Delay (Note 7) GD - 17.0 - 1/fs Group Delay Distortion ∆GD - 0 - µs ADC Digital Filter (HPF): Frequency Response (Note 6) −3dB FR - 3.4 - Hz −0.5dB - 10 - Hz −0.1dB - 22 - Hz DAC Digital Filter: Passband (Note 6) ±0.05dB PB 0 - 20.0 kHz −6.0dB - 22.05 - kHz Stopband SB 24.1 - - kHz Passband Ripple PR - - ±0.02 dB Stopband Attenuation SA 54 - - dB Group Delay (Note 7) GD - 19.0 - 1/fs DAC Digital Filter + Analog Filter: Frequency Response 0 ∼ 20.0kHz FR - ±0.5 - dB Note 6. The passband and stopband frequencies scale with fs (sampling frequency). For examples, PB=20.0kHz(@ADC: −1.0dB, DAC: −0.1dB) are 0.454 x fs. Note 7. This is the calculated delay time caused by digital filtering. This time is measured from the input of analog signal to setting the 16bit data of both channels on input register to the output register of ADC. This time also includes group delay of HPF. For DAC, this time is from setting the 16bit data of both channels on input register to the output of analog signal. DC CHARACTERISTICS (Ta=25 °C; VDD=1.6 ∼ 3.6V) Parameter Symbol min typ max Units High-Level Input Voltage 2.2V ≤VDD≤3.6V VIH 70 %VDD - - V 1.6V ≤VDD<2.2V VIH 80 %VDD - - V Low-Level Input Voltage 2.2V ≤VDD≤3.6V VIL - - 30 %VDD V 1.6V ≤VDD<2.2V VIL - - 20 %VDD V High-Level Output Voltage (Iout= −20µA) VOH VDD −0.1 - - V Low-Level Output Voltage (Iout= 20 µA) VOL - - 0.1 V Input Leakage Current Iin - - ±10 µA |
Nº de peça semelhante - AK4554 |
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Descrição semelhante - AK4554 |
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