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AKD5394A

Super High Performance 192kHz 24-Bit ∆Σ ADC

Asahi Kasei Microdevices 

ASAHI KASEI

[AK5394A]

AK5394A

Super High Performance 192kHz 24-Bit ∆Σ ADC

GENERAL DESCRIPTION

The AK5394A is a 24bit, 192kHz sampling 2ch A/D Converter for professional digital audio systems. The

modulator in the AK5394A uses the new developed advanced multi bit architecture. This new architecture

achieves the wide dynamic range and wide bandwidth, while keeping superior distortion characteristics.

The AK5394A performs 123dB dynamic range, so the device is suitable for professional studio equipment

such as digital mixer, digital VTR etc. The operating voltages support analog 5V and digital 3.3V, so it is

easy to I/F with 3.3V logic IC.

FEATURES

‡ 128x Oversampling

‡ New advanced multi bit Architecture ADC

‡ Sampling Rate: 1kHz ∼ 216kHz

‡ Full Differential Inputs

‡ S/(N+D): 110dB

‡ DR: 123dB

‡ S/N: 123dB

‡ High Performance Linear Phase Digital Anti-Alias filter

• Passband: 0 ∼ 21.768kHz(@fs=48kHz)

• Ripple: 0.001dB

• Stopband: 120dB

‡ Digital HPF & Offset Calibration for Offset Cancel

‡ Power Supply: 5V±5%(Analog), 3 ∼ 5.25V(Digital)

‡ Power Dissipation: 665mW

‡ Package: 28pin SOP

‡ AK5392/3 Semi-Pin Compatible

SMODE1 SMODE2

12

11

SCLK LRCK FSYNC

14 13

16

VREFL+ 1

VREFL- 2

VCOML 3

4

AINL+

AINL- 5

6

ZCAL

25

AINR+

24

AINR-

26

VCOMR

28

VREFR+

VREFR- 27

Voltage

Reference

Delta-Sigma

Modulator

Delta-Sigma

Modulator

Voltage

Reference

Serial Output

Interface

15

SDATA

Decimation

Filter

Decimation

Filter

Controller

HPF

19

HPFE

HPF

Calibration

SRAM

17

MCLK

18 DFS0

20

DFS1

23

22

VA AGND

21

BGND

9

10

7

8

CAL

RSTN

VD

DGND

MS0137-E-03

-1-

2005/05

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