AK4390 Datasheet, PDF (1/32 Pages) Asahi Kasei Microsystems – Ultra Low Latency 32-Bit ΔΣ DAC

[AK4390]
AK4390
Ultra Low Latency 32-Bit ΔΣ DAC
GENERAL DESCRIPTION
The AK4390 is a high performance stereo DAC capable of sampling up to 216kHz including a 32-bit digital
filter. The modulator uses AKM's multi-bit architecture, delivering wide dynamic range while preserving
linearity for improved THD+N performance. The AK4390 has fully differential switched-cap filter outputs,
removing the need for AC coupling capacitors and increasing performance for systems with excessive
clock jitter. The AK4390 accepts 192kHz PCM data, ideal for a wide range of applications including
DVD-Audio, high end sound cards, digital audio Firewire and USB interface boxes, and digital mixers.
FEATURES
• 128-times Oversampling
• Sampling Rate: 30kHz ∼ 216kHz
• 32Bit 8x Digital Filter
Ripple: ±0.005dB, Attenuation: 100dB
Low latency option: 7/fs
• High Tolerance to Clock Jitter
• Low Distortion Differential Output
• Digital De-emphasis for 32, 44.1, 48kHz sampling
• Soft Mute
• Digital Attenuator (255 levels and 0.5dB step)
• THD+N: −103dB
• DR, S/N: 120dB
• Audio Format: 24/32bit MSB justified, 16/20/24/32bit LSB justified, I²S
• Master Clock:
30kHz ~ 32kHz: 1152fs
30kHz ~ 54kHz: 512fs or 768fs
30kHz ~ 108kHz: 256fs or 384fs
108kHz ~ 216kHz: 128fs or 192fs
• Power Supply: 5V ± 5%
• TTL Level Digital I/F
• Package: 30pin VSOP
MS1046-E-00
-1-
2009/01