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AK5522 数据表(PDF) 14 Page - Asahi Kasei Microsystems |
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AK5522 数据表(HTML) 14 Page - Asahi Kasei Microsystems |
14 / 84 page [AK5522] 017002311-E-00 2017/03 - 14 - ■ ADC Filter Characteristics (fs= 192kHz) (Ta= 40 - +105C, AVDD=3.0 - 3.6V or 4.5 - 5.5V, DVDD=3.0 - 3.6V or 1.7 - 1.98V) Parameter Symbol Min. Typ. Max. Unit Digital Filter (Decimation LPF): SHARP ROLL-OFF (Figure 11) (Parallel Control mode: SD pin= “L”, Serial Control mode: SD bit=”0”, SLOW bit=”0”) Passband (Note 12) +0.001/ 0.037dB 6.0dB PB 0 - 100.2 83.7 kHz kHz Stopband (Note 12) SB 122.9 - - kHz Stopband Attenuation SA 85 - - dB Group Delay Distortion 0 - 40.0kHz GD - 0 - 1/fs Group Delay (Note 13) GD - 14.9 - 1/fs Digital Filter (Decimation LPF): SLOW ROLL-OFF (Figure 12) (Parallel Control mode: Not Available, Serial Control mode: SD bit= ”0”, SLOW bit=”1”) Passband (Note 12) +0.001/ 0.1dB 6.0dB PB 0 - 75.2 31.5 kHz kHz Stopband (Note 12) SB 146 - - kHz Stopband Attenuation SA 85 - - dB Group Delay Distortion 0 - 40.0kHz GD - 0 - 1/fs Group Delay (Note 13) GD - 7.9 - 1/fs Digital Filter (Decimation LPF): SHORT DELAY SHARP ROLL-OFF FILTER (Figure 13) (Parallel Control mode: SD pin= ”H”, Serial Control mode: SD bit=”1”, SLOW bit=”0”) Passband (Note 12) +0.001/ 0.037dB PB 0 - 83.7 kHz 6.0dB - 100.2 - kHz Stopband (Note 12) SB 122.9 - - kHz Stopband Attenuation SA 85 - - dB Group Delay Distortion 0 - 40.0kHz GD - - 0.3 1/fs Group Delay (Note 13) GD - 6.4 - 1/fs Digital Filter (Decimation LPF): SHORT DELAY SLOW ROLL-OFF FILTER (Figure 14) (Parallel Control mode: Not Available, Serial Control mode: SD bit= ”1”, SLOW bit=”1”) Passband (Note 12) +0.001/ 0.1dB PB 0 - 31.5 kHz 6.0dB - 75.2 - kHz Stopband (Note 12) SB 146 - - kHz Stopband Attenuation SA 85 - - dB Group Delay Distortion 0 - 40.0kHz GD - - 0.4 1/fs Group Delay (Note 13) GD - 6.4 - 1/fs Digital Filter (HPF): Frequency Response (Note 12) 3.0dB 0.5dB 0.1dB FR - - - 1.0 2.5 6.5 - - - Hz Hz Hz Note 12. The passband and stopband frequencies scale with fs. For example, PB (+0.001dB/ 0.037dB) =0.436 fs (SHARP ROLL-OFF). For example, PB (+0.001dB/ 0.1dB) =0.164 fs (SLOW ROLL-OFF). Note 13. The calculated delay time induced by digital filtering. This time is from the input of an analog signal to the L channel MSB output timing of the SDTO. It may have an error of +1[1/fs] at maximum when outputting data via audio interfaces. The signal frequency is 1kHz. |
类似零件编号 - AK5522 |
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类似说明 - AK5522 |
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