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AK5356VN

Low Power 20-Bit ADC with MIC-Amp & PGA

Asahi Kasei Microdevices 

ASAHI KASEI

[AK5356]

FILTER CHARACTERISTICS

(Ta=25°C; AVDD=2.0 ∼ 3.3V, DVDD=1.8 ∼ 3.3V, MVDD=2.4∼ 3.3V, fs=44.1kHz)

Parameter

Symbol

min

typ

max

Units

ADC Digital Filter (LPF):

Passband

(Note 17) ±0.1dB

PB

0

17.4

kHz

-1.0dB

20.0

kHz

-3.0dB

21.1

kHz

Stopband

(Note 17)

SB

27.0

kHz

Passband Ripple

Stopband Attenuation

PR

SA

65

±0.1

dB

dB

Group Delay

(Note 18)

GD

17.0

1/fs

Group Delay Distortion

∆GD

0

µs

ADC Digital Filter (HPF):

Frequency Response (Note 17) -3dB

FR

3.4

Hz

-0.5dB

10

Hz

-0.1dB

22

Hz

Note 17. The passband and stopband frequencies scale with fs (sampling frequency).

For example, PB=0.454 x fs (@ -1.0dB).

Note 18. The calculated delay time caused by digital filtering. This time from the input of an analog signal to setting the

20bit data of both channels to the output register of the ADC and includes the group delay of the HPF.

DC CHARACTERISTICS

(Ta=25°C; AVDD=2.0 ∼ 3.3V, DVDD=1.8 ∼ 3.3V, MVDD=2.4∼ 3.3V)

Parameter

Symbol

min

typ

max

Units

High-Level Input Voltage

VIH

75%DVDD

-

-

V

Low-Level Input Voltage

VIL

-

-

25%DVDD V

High-Level Output Voltage Iout = -80µA

VOH DVDD-0.4

-

-

V

Low-Level Output Voltage Iout = 80µA

VOL

-

-

0.4

V

Input Leakage Current

Iin

-

-

±10

µA

MS0171-E-00

-8-

2002/08

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