ASAHI KASEI
[AK4357]
AK4357
192kHz 24-Bit 6ch DAC with DSD Input
GENERAL DESCRIPTION
The AK4357 is six channels 24bit DAC corresponding to digital audio system. Using AKM's advanced
multi bit architecture for its modulator the AK4357 delivers a wide dynamic range while preserving
linearity for improved THD+N performance. The AK4357 has full differential SCF outputs, removing the
need for AC coupling capacitors and increasing performance for systems with excessive clock jitter. The
AK4357 accepts 192kHz PCM data and 1-Bit DSD data, ideal for a wide range of applications including
DVD-Audio and SACD.
FEATURES
o
Sampling Rate Ranging from 8kHz to 192kHz
o
24Bit 8 times Digital Filter with Slow roll-off option
o
THD+N:
-90dB
o
DR, S/N: 106dB
o
High Tolerance to Clock Jitter
o
Low Distortion Differential Output
o
DSD Data input available
o
Channel Independent Digital De-emphasis for 32, 44.1 & 48kHz sampling
o
Zero Detect function
o
Channel Independent Digital Attenuator with soft-transition (3 Speed
mode)
o
Soft Mute
o
3-wire Serial Interface for Volume Control
o
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)
o
Power Supply: 4.75 to 5.25V
o
48pin LQFP Package
DZF
LOUT1+
LOUT1-
ROUT1+
ROUT1-
LOUT2+
LOUT2-
ROUT2+
ROUT2-
LOUT3+
LOUT3-
ROUT3+
ROUT3-
SCF
SCF
DAC
DATT
Audio
I/F
MCLK
LRCK
BICK
SDTI1
DAC
DATT
PCM
SDTI2
SDTI3
CSN
CCLK
CDTI
DCLK
DSDL1
DSDR1
DSDL2
SCF
SCF
DAC
DATT
Control
Register
DAC
DATT
SCF
SCF
DAC
DAC
DATT
DATT
DSD
AK4357
DSDR2
DSDL3
DSDR3
MS0088-E-02
- 1-
2002/07
AKM [ ASAHI KASEI MICROSYSTEMS ]
