[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, I
2
S, 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