[AK4480]
AK4480
High Performance 114dB 32-Bit DAC
GENERAL DESCRIPTION
The AK4480 is a 32-bit DAC, which corresponds to Blu-ray Disc systems. An internal circuit includes
newly developed 32bit Digital Filter for better sound quality achieving low distortion characteristics and
wide dynamic range. The AK4480 has full differential SCF outputs, removing the need for AC coupling
capacitors and increasing performance for systems with excessive clock jitter. The AK4480 accepts
216kHz PCM data and 1-bit DSD data, ideal for a wide range of applications including Blu-ray Discs and
SACDs.
FEATURES
•
128x Over Sampling
•
Sampling Rate: 30kHz
∼
216kHz
•
32Bit 8x Digital Filter
- Ripple:
±0.005dB,
Attenuation: 70dB
- Minimum delay option GD=7/fs
- Sharp Roll-off Filter
- Slow Roll-off Filter
•
High Tolerance to Clock Jitter
•
Low Distortion Differential Output
•
DSD Data Input
•
Digital De-emphasis for 32, 44.1, 48kHz Sampling
•
Soft Mute
•
Digital Attenuator (Linear 256 steps)
•
Mono Mode
•
External Digital Filter Mode
•
THD+N: -100dB
•
DR, S/N: 114dB (117dB when Mono mode)
•
I/F Format: 24/32bit MSB justified, 16/20/24/32bit LSB justified, I
2
S, DSD
•
Master Clock:
30kHz ~ 32kHz: 1152fs
30kHz ~ 54kHz: 512fs or 768fs
30kHz ~ 108kHz: 256fs or 384fs
108kHz ~ 216kHz: 128fs or 192fs
•
Power Supply: 4.75
∼
5.25V
•
Digital Input Level: TTL
•
Package: 30pin VSOP
MS1146-E-03
-1-
2012/01
AKM [ ASAHI KASEI MICROSYSTEMS ]
