[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
VDD
DEM
SMUTE
ACKS
DIF0
DIF1
LRCK
BICK
SDTI
Control
Port
De-emphasis
Control
VSS
Clock
Divider
VCOM
DZF
Audio
Data
Interface
8X
Interpolator
ΔΣ
Modulator
SCF
LPF
AOUTL
8X
Interpolator
ΔΣ
Modulator
SCF
LPF
AOUTR
RSTN
MS1008-E-01
2008/10
-1-
