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AK4388AET

192kHz 24-Bit 2ch ΔΣDAC

Asahi Kasei Microdevices 

[AK4388A]

AK4388A

192kHz 24-Bit 2ch ΔΣ DAC

GENERAL DESCRIPTION

The AK4388A offers the perfect mix for cost and performance based audio systems. Using AKM's multi bit

architecture for its modulator, the AK4388A delivers a wide dynamic range while preserving linearity for

improved THD+N performance. The AK4388A integrates a combination of SCF and CTF filters increasing

performance for systems with excessive clock jitter. The 24 Bit word length and 192kHz sampling rate

make this part ideal for a wide range of applications including DVD-Audio. The AK4388A is offered in a

space saving 16pin TSSOP package.

FEATURES

† Sampling Rate Ranges from 8kHz to 192kHz

† 128 times Oversampling (Normal Speed Mode)

† 64 times Oversampling (Double Speed Mode)

† 32 times Oversampling (Quad Speed Mode)

† 24-Bit 8 times FIR Digital Filter

† SCF with High Tolerance to Clock Jitter

† Single Ended Output Buffer

† Digital de-emphasis

† Soft mute

† I/F format: 24-Bit MSB justified, 24/16-Bit LSB justified or I2S

† Master clock: 256fs, 384fs, 512fs, 768fs or 1152fs (Normal Speed Mode)

256fs or 384fs (Double Speed Mode)

128fs, 192fs (Quad Speed Mode)

† THD+N: -90dB

† Dynamic Range: 106dB

† Power supply: 4.5 to 5.5V

† Very Small Package: 16pin TSSOP (6.4mm x 5.0mm)

† AK4384 Parallel Mode Compatible

MCLK

DEM

SMUTE

ACKS

DIF0

DIF1

Control

Port

De-emphasis

Control

Clock

Divider

VDD

VSS

VCOM

DZF

LRCK

BICK

SDTI

Audio

Data

Interface

8X

Interpolator

8X

Interpolator

ΔΣ

Modulator

ΔΣ

Modulator

SCF

LPF

SCF

LPF

AOUTL

AOUTR

RSTN

MS1008-E-02

-1-

2010/09

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