AK4421ET datasheet(6/19 Pages) AKM | 192kHz 24-Bit Stereo ?誇 DAC with 2Vrms Output

Part No.	AK4421ET

Description	192kHz 24-Bit Stereo ?誇 DAC with 2Vrms Output

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Manufacturer	AKM [Asahi Kasei Microsystems]

Direct Link	http://www.akm.com

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6 / 19 page

[AK4421]

MS0945-E-01

2008/08

- 6 -

FILTER CHARACTERISTICS

(Ta = 25

°C; VDD=CVDD = +3.0 ∼ +3.6V; fs = 44.1 kHz)

Parameter

Symbol

min

typ

max

Units

Digital filter

Passband

±0.05dB (Note 12)

–6.0dB

PB

0

-

22.05

20.0

-

kHz

Stopband (Note 12)

SB

24.1

kHz

Passband Ripple

PR

± 0.02

dB

Stopband Attenuation

SA

54

dB

Group Delay (Note 13)

GD

-

19.3

-

1/fs

Digital Filter + LPF

Frequency Response

20.0kHz

40.0kHz

80.0kHz

fs=44.1kHz

fs=96kHz

fs=192kHz

FR

-

± 0.05

-

dB

Note 12. The passband and stopband frequencies scale with fs (system sampling rate).

For example, PB=0.4535×fs (@

±0.05dB), SB=0.546×fs.

Note 13. Calculated delay time caused by the digital filter. This time is measured from setting the 16/24bit data

of both channels to input register to the output of the analog signal.

DC CHARACTERISTICS

(Ta = 25

°C; VDD=CVDD = +3.0 ∼ +3.6V)

Parameter

Symbol

min

typ

max

Units

High-Level Input Voltage

Low-Level Input Voltage

VIH

VIL

70%VDD

-

30%VDD

V

High-Level Output Voltage (Iout = -80uA)

Low-Level Output Voltage

(Iout = 80uA)

VOH

VOL

VDD-0.4

-

0.4

V

Input Leakage Current (Note 14)

Iin

-

± 10

μA

Note 14. The SMUTE pin is not included. The SMUTE pin has internal pull-down resistor (typ.100kΩ).

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AK4421ET Datasheet(PDF) 6 Page - Asahi Kasei Microsystems

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