ASAHI KASEI [AK4383]
MS0090-E-00 2001/4
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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
box3 Sampling Rate Ranging from 8kHz to 192kHz
box3 24-Bit 8 times FIR Digital Filter
box3 On chip SCF
box3 Digital de-emphasis for 32k, 44.1k and 48kHz sampling
box3 Soft mute
box3 Digital Attenuator (Linear 256 steps)
box3 PCM I/F format: 24-Bit MSB justified, 24/20/16-Bit LSB justified or I
2
S
box3 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)
box3 THD+N: -94dB
box3 Dynamic Range: 110dB
box3 DSD Data Input Mode
box3 High Tolerance to Clock Jitter
box3 Power supply: 4.75 to 5.25V
box3 Very Small Package: 20pin TSSOP (0.65mm pitch)
box3 AK4382 Pin Compatible
LRCK/DSDR
BICK/DCLK
SDTI/DSDL
PCM
Data
Interface
MCLK
PDN
S&H
∆Σ Modulator
AOUTL+
8X
Interpolator
SCF
AOUTR+
SCF
VDD
VSS
De-emphasis
Control
µP
Interface
Clock
Divider
CSN
CCLK
CDTI
DZFR
S&H
∆Σ Modulator
8X
Interpolator
AOUTL-
AOUTR-
DZFL
DSD
Data
Interface
DCLK
DSDL
DSDR
DSDM
192kHz 24-Bit 2ch ∆Σ DAC with DSD input
AK4383