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AK4480

High Performance 114dB 32-Bit DAC

Asahi Kasei Microdevices 

[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, I2S, 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

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