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AK4490EN Datasheet(PDF) 11 Page - Asahi Kasei Microsystems |
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AK4490EN Datasheet(HTML) 11 Page - Asahi Kasei Microsystems |
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11 / 42 page  [AK4490EN] 015013666-E-01 2015/12 - 11 - ■ Sharp Roll-Off Filter Characteristics (fs=44.1kHz) (Ta=25 C; AVDD=DVDD=3.0~3.6V, TVDD=1.6V DVDD, VREFHL/R=VDDL/R=4.75 5.25V; Normal Speed Mode; DEM=OFF; SD bit= “0” or SD pin = “L”, SLOW bit=“0” or SLOW pin = “L”) Parameter Symbol Min. Typ. Max. Unit Digital Filter Passband (Note 14) 0.01dB 6.0dB PB 0 - 22.05 20.0 - kHz kHz Stopband (Note 14) SB 24.1 kHz Passband Ripple PR 0.005 dB Stopband Attenuation SA 100 dB Group Delay (Note 15) GD - 29.4 - 1/fs Digital Filter + SCF Frequency Response: 0 20.0kHz - +0.1/-0.2 - dB ■ Sharp Roll-Off Filter Characteristics (fs=96kHz) Ta=25 C; AVDD=DVDD=3.0~3.6V, TVDD=1.6V DVDD, VREFHL/R=VDDL/R=4.75 5.25V; Double Speed Mode; DEM=OFF; SD bit= “0” or SD pin = “L”, SLOW bit=“0” or SLOW pin = “L”) Parameter Symbol Min. Typ. Max. Unit Digital Filter Passband (Note 14) 0.01dB 6.0dB PB 0 - 48.0 43.5 - kHz kHz Stopband (Note 14) SB 52.5 kHz Passband Ripple PR 0.005 dB Stopband Attenuation SA 100 dB Group Delay (Note 15) GD - 28.8 - 1/fs Digital Filter + SCF Frequency Response: 0 40.0kHz - +0.1/-0.6 - dB ■ Sharp Roll-Off Filter Characteristics (fs=192kHz) (Ta=25 C; AVDD=DVDD=3.0~3.6V, TVDD=1.6V DVDD, VREFHL/R=VDDL/R=4.75 5.25V; Quad Speed Mode; DEM=OFF; SD bit= “0” or SD pin = “L”, SLOW bit=“0” or SLOW pin = “L”) Parameter Symbol Min. Typ. Max. Unit Digital Filter Passband (Note 14) 0.01dB 6.0dB PB 0 - 96.0 87.0 - kHz kHz Stopband (Note 14) SB 105 kHz Passband Ripple PR 0.005 dB Stopband Attenuation SA 92 dB Group Delay (Note 15) GD - 28.8 - 1/fs Digital Filter + SCF Frequency Response: 0 80.0kHz - +0.1/-0.2 - dB Note 14. The passband and stopband frequencies scale with fs. For example, PB=0.4535×fs (@ 0.01dB), SB=0.546×fs. Note 15. The calculating delay time which occurred by digital filtering. This time is from setting the 16/20/24/32 bit data of both channels to the output of analog signal. |
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