AKD4516A 데이터 시트보기 (PDF) - Asahi Kasei Microdevices

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AKD4516A

3V 16bit ADC&DAC with built-in PGA

Asahi Kasei Microdevices 

ASAHI KASEI

[AK4516A]

FILTER CHARACTERISTICS

(Ta=25°C; VA,VD=2.5∼3.6V; fs=44.1kHz; DEM bit="0")

Parameter

Symbol

min

typ

max

Units

ADC Digital Filter (LPF):

Passband (Note 6 )

±0.1dB

PB

0

16.5

kHz

-0.55dB

19.0

kHz

-1.2dB

20.0

kHz

Stopband

SB

26.0

kHz

Passband Ripple

PR

±0.1

dB

Stopband Attenuation

SA

68

dB

Group Delay

(Note 7 )

GD

16.1

1/fs

Group Delay Distortion

∆GD

0

us

ADC Digital Filter (HPF):

Frequency Response (Note 6 ) -3.0dB

FR

3.4

Hz

-0.5dB

10

Hz

-0.1dB

22

Hz

DAC Digital Filter:

Passband (Note 6 )

±0.1dB

PB

0

20.0

kHz

-6.0dB

22.05

kHz

Stopband

SB

24.1

kHz

Passband Ripple

PR

±0.06

dB

Stopband Attenuation

SA

43

dB

Group Delay

(Note 7 )

GD

14.7

1/fs

DAC Digital Filter + Analog Filter

Frequency Response 0∼20.0kHz

FR

±0.5

dB

Note 6 .The passband and stopband frequencies scale with fs (system sampling rate).

For example, ADC is PB=0.431*fs(@-0.55dB), DAC is PB=0.454*fs(@-0.1dB).

7 .The calculating delay time which occurred by digital filtering. This time is from the input of analog signal to

setting the 16 bit data of both channels to the output register for ADC.

For DAC, this time is from setting the 16 bit data of both channels on input register to the output of analog

signal.

M0026-E-00

-7-

1998/08

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