AK4621EF datasheet(11/41 Pages) AKM

Part #	AK4621EF

Description	24-Bit 192kHz Stereo Audio CODEC

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Manufacturer	AKM [Asahi Kasei Microsystems]

Direct Link	http://www.akm.com

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[AK4621]

MS1258-E-01

2011/01

- 11 -

ADC SHORT DELAY SHARP ROLL OFF FILTER CHARACTERISTICS (fs=48kHz)

(Ta=25

°C; AVDD=4.75 ∼ 5.25V; DVDD=3.0 ∼ 3.6V, TVDD=DVDD ∼ 5.25V; Normal Speed Mode; SDAD bit = “1”)

Parameter

Symbol

min

typ

max

Units

ADC Digital Filter (Decimation LPF):

Passband

(Note 16) −0.01dB

−0.1dB

−3.0dB

−6.0dB

PB

0

-

22.1

23.8

24.4

21.7

-

kHz

Stopband

(Note 16)

SB

28.2

-

kHz

Passband Ripple

PR

-

±0.01

dB

Stopband Attenuation

SA

80

-

dB

Group Delay

(Note 17)

GD

-

14

-

1/fs

Group Delay Distortion

ΔGD

-

±0.01

-

μs

ADC Digital Filter (HPF):

Frequency Response (Note 16)

−3dB

−0.1dB

FR

-

1.0

6.5

-

Hz

ADC SHORT DELAY SHARP ROLL OFF FILTER CHARACTERISTICS (fs=96kHz)

(Ta=25

°C; AVDD=4.75 ∼ 5.25V; DVDD=3.0 ∼ 3.6V, TVDD=DVDD ∼ 5.25V; Double Speed Mode; SDAD bit = “1”)

Parameter

Symbol

min

typ

max

Units

ADC Digital Filter (Decimation LPF):

Passband

(Note 16) −0.01dB

−0.1dB

−3.0dB

−6.0dB

PB

0

-

44.2

47.6

48.9

43.3

-

kHz

Stopband

(Note 16)

SB

55.9

-

kHz

Passband Ripple

PR

-

±0.01

dB

Stopband Attenuation

SA

80

-

dB

Group Delay

(Note 17)

GD

-

14

-

1/fs

Group Delay Distortion

ΔGD

-

±0.013

-

μs

ADC Digital Filter (HPF):

Frequency Response (Note 16)

−3dB

−0.1dB

FR

-

2.0

13.0

-

Hz

ADC SHORT DELAY SHARP ROLL OFF FILTER CHARACTERISTICS (fs=192kHz)

(Ta=25

°C; AVDD=4.75 ∼ 5.25V; DVDD=3.0 ∼ 3.6V, TVDD=DVDD ∼ 5.25V; Quad Speed Mode; SDAD bit = “1”)

Parameter

Symbol

min

typ

max

Units

ADC Digital Filter (Decimation LPF):

Passband

(Note 16) −0.01dB

−0.1dB

−3.0dB

−6.0dB

PB

0

-

81.1

99.9

106.7

76.1

-

kHz

Stopband

(Note 16)

SB

141.1

-

kHz

Passband Ripple

PR

-

±0.01

dB

Stopband Attenuation

SA

79

-

dB

Group Delay

(Note 17)

GD

-

11

-

1/fs

Group Delay Distortion

ΔGD

-

0

-

μs

ADC Digital Filter (HPF):

Frequency Response (Note 16)

−3dB

−0.1dB

FR

-

4.0

26.0

-

Hz

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