AK4397 Datasheet, PDF (1/37 Pages) Asahi Kasei Microsystems – High Performance Premium 32-Bit DAC

[AK4397]
AK4397
High Performance Premium 32-Bit DAC
GENERAL DESCRIPTION
The AK4397 is a high performance premium 32bit DAC for the 192kHz sampling mode of DVD-Audio
including a 32bit digital filter. Using AKM's multi bit architecture for its modulator the AK4397 delivers a
wide dynamic range while preserving linearity for improved THD+N performance. The AK4397 has full
differential SCF outputs, removing the need for AC coupling capacitors and increasing performance for
systems with excessive clock jitter. The AK4397 accepts 192kHz PCM data and 1-bit DSD data, ideal for
a wide range of applications including DVD-Audio and SACD. The AK4397 has a functional compatibility
with the AK4393/4/5 and lower power dissipation.
FEATURES
• 128x Over sampling
• Sampling Rate: 30kHz ∼ 216kHz
• 32Bit 8x Digital Filter (Slow-roll-off option)
Ripple: ±0.005dB, Attenuation: 75dB
• High Tolerance to Clock Jitter
• Low Distortion Differential Output
• DSD data input available
• Digital De-emphasis for 32, 44.1, 48kHz sampling
• Soft Mute
• Digital Attenuator (Linear 256 steps)
• THD+N: −103dB
• DR, S/N: 120dB
• I/F Format: 24/32bit MSB justified, 16/20/24/32bit LSB justified, I²S, DSD
• Master Clock: Normal Speed: 256fs, 384fs, 512fs, 768fs or 1152fs
Double Speed: 128fs, 192fs, 256fs or 384fs
Quad Speed: 128fs or 192fs
DSD:
512fs or 768fs
• Power Supply: 4.75 ∼ 5.25V
• TTL Level Digital I/F
• Package: 44pin LQFP
MS0616-E-00
-1-
2007/05