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 AKMs 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