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AKD4383

192kHz 24-Bit 2ch ∆Σ DAC with DSD input

Asahi Kasei Microdevices 

ASAHI KASEI

[AK4383]

AK4383

192kHz 24-Bit 2ch ∆Σ DAC with DSD input

GENERAL DESCRIPTION

The AK4383 offers the perfect mix for cost and performance based audio systems. Using AKM's multi bit

architecture for its modulator the AK4383 delivers a wide dynamic range while preserving linearity for

improved THD+N performance. The AK4383 has full differential SCF outputs, removing the need for AC

coupling capacitors and increasing performance for systems with excessive clock jitter. The AK4383

accepts 192kHz PCM data and 1-Bit DSD data, ideal for a wide range of applications including DVD-

Audio and SACD. The AK4383 is offered in a space saving 20pin TSSOP package.

FEATURES

Sampling Rate Ranging from 8kHz to 192kHz

24-Bit 8 times FIR Digital Filter

On chip SCF

Digital de-emphasis for 32k, 44.1k and 48kHz sampling

Soft mute

Digital Attenuator (Linear 256 steps)

PCM I/F format: 24-Bit MSB justified, 24/20/16-Bit LSB justified or I2S

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

128fs, 192fs, 256fs or 384fs (PCM Double Speed Mode)

128fs or 192fs (PCM Quad Speed Mode)

512fs or 768fs (DSD Mode)

THD+N: -94dB

Dynamic Range: 110dB

DSD Data Input Mode

High Tolerance to Clock Jitter

Power supply: 4.75 to 5.25V

Very Small Package: 20pin TSSOP (0.65mm pitch)

AK4382 Pin Compatible

MCLK

CSN

CCLK

CDTI

LRCK/DSDR

BICK/DCLK

SDTI/DSDL

DCLK

DSDL

DSDR

µP

Interface

De-emphasis

Control

PCM

Data

Interface

DSD

Data

Interface

8X

Interpolator

8X

Interpolator

Clock

Divider

S&H

∆Σ Modulator

SCF

S&H

∆Σ Modulator

SCF

VDD

VSS

DZFL

DZFR

AOUTL+

AOUTL-

AOUTR+

AOUTR-

PDN

MS0090-E-00

DSDM

-1-

2001/4

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