GENERAL DESCRIPTION

AK4399 is a 32-bit DAC, which corresponds to DVD-Audio systems. An internal circuit includes newly developed 32bit Digital Filter for better sound quality achieving low distortion characteristics and wide dynamic range. The AK4399 has full differential SCF outputs, removing the need for AC coupling capacitors and increasing performance for systems with excessive clock jitter. The AK4399 accepts 192kHz PCM data and 1-bit DSD data, ideal for a wide range of applications including DVD-Audio and SACD.

FEATURES

•128x Over sampling

•Sampling Rate: 30kHz ∼216kHz

•32Bit 8x Digital Filter (Short delay option GD=7/fs)

- Ripple: ±0.005dB, Attenuation: 100dB

•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 (255 levels and 0.5dB step)

•Mono Mode

•External Digital Filter Mode

•THD+N: -105dB

•DR, S/N: 123dB

•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: 44pin LQFP