AK4394 データシートの表示（PDF） - Asahi Kasei Microdevices

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AK4394

Advanced Multi-Bit 192kHz 24-Bit ΔΣ DAC

Asahi Kasei Microdevices 

ASAHI KASEI

[AK4394]

SHARP ROLL-OFF FILTER CHARACTERISTICS (fs = 44.1kHz)

(Ta = 25°C; AVDD, DVDD = 4.75~5.25V; fs = 44.1kHz; Normal Speed Mode; DEM = OFF; SLOW = “0”)

Parameter

Symbol

min

typ

max

Units

Digital Filter

Passband

±0.01dB (Note 14)

PB

-6.0dB

0

20.0

kHz

-

22.05

-

kHz

Stopband

(Note 14)

SB

24.1

Passband Ripple

PR

Stopband Attenuation

SA

75

Group Delay

(Note 15)

GD

-

kHz

± 0.005

dB

dB

28

-

1/fs

Digital Filter + SCF

Frequency Response 0 ~ 20.0kHz

-

± 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.

15. The calculating delay time which occurred by digital filtering. This time is from setting the 16/20/24bit data of

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

SHARP ROLL-OFF FILTER CHARACTERISTICS (fs = 96kHz)

(Ta = 25°C; AVDD, DVDD = 4.75~5.25V; fs = 96kHz; Double Speed Mode; DEM = OFF; SLOW = “0”)

Parameter

Symbol

min

typ

max

Digital Filter

Passband

±0.01dB (Note 14)

PB

0

43.5

-6.0dB

-

48.0

-

Stopband

(Note 14)

SB

52.5

Passband Ripple

PR

± 0.005

Stopband Attenuation

SA

75

Group Delay

(Note 15)

GD

-

28

-

Digital Filter + SCF

Frequency Response 0 ~ 40.0kHz

-

± 0.3

-

Units

kHz

kHz

kHz

dB

dB

1/fs

dB

SHARP ROLL-OFF FILTER CHARACTERISTICS (fs = 192kHz)

(Ta = 25°C; AVDD, DVDD = 4.75~5.25V; fs = 192kHz; Quad Speed Mode; DEM = OFF; SLOW = “0”)

Parameter

symbol

min

typ

max

Digital Filter

Passband

±0.01dB (Note 14)

PB

-6.0dB

0

87.0

-

96.0

-

Stopband

(Note 14)

SB

105

Passband Ripple

PR

Stopband Attenuation

SA

75

Group Delay

(Note 15)

GD

-

± 0.005

28

-

Digital Filter + SCF

Frequency Response 0 ~ 80.0kHz

-

+0/-1

-

Units

kHz

kHz

kHz

dB

dB

1/fs

dB

M0081-E-00

-6-

1999/11

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