ASAHI KASEI
AKM CONFIDENTIAL
[AK4358]
REV 0.7 2002/06
- 1 -
GENERAL DESCRIPTION
The AK4358 is eight channels 24bit DAC corresponding to digital audio system. Using AKM's advanced
multi bit architecture for its modulator the AK4358 delivers a wide dynamic range while preserving
linearity for improved THD+N performance. The AK4358 has full differential SCF outputs, removing the
need for AC coupling capacitors and increasing performance for systems with excessive clock jitter. The
AK4358 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: -94dB
o
DR, S/N: 114dB
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 and I
2
C Bus µP I/F for mode setting
o I/F format: MSB justified, LSB justified (16bit, 20bit, 24bit), I
2
S, TDM or DSD
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
Audio
Control
Register
AK4358
3-wire
or I2C
192kHz 24-Bit 8ch DAC with DSD Input
= Target Spec =
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