GENERAL DESCRIPTION

The AK4394 is a high performance stereo DAC for the 192kHz sampling mode of DVD-Audio including a 24bit digital filter. The AK4394 introduces the advanced multi-bit system for DS modulator. This new architecture achieves the wider dynamic range, while keeping much the same superior distortion characteristics as conventional Single-Bit way. In the AK4394, the analog outputs are filtered in the analog domain by switched-capacitor filter(SCF) with high tolerance to clock jitter. The analog outputs are full differential output, so the device is suitable for hi-end applications. The digital I/F can correspond to TTL levels, so it is easy to I/F with 3.3V logic IC.

FEATURES

· 128x Oversampling

· Sampling Rate up to 192kHz

· 24Bit 8x Digital Filter (Slow-roll-off option) Ripple: ±0.005dB, Attenuation: 75dB

· High Tolerance to Clock Jitter

· Low Distortion Differential Output

· Digital de-emphasis for 32, 44.1, 48 & 96kHz sampling

· Soft Mute

· THD+N: -100dB

· DR, S/N: 120dB

· I/F format : MSB justified, 16/20/24bit LSB justified, I2S

· Master Clock: Normal Speed: 256fs, 384fs, 512fs or 768fs

                    Double Speed: 128fs, 192fs, 256fs or 384fs

                    Quad Speed: 128fs or 192fs

· Power Supply: 5V±5%

· TTL Level Digital I/F

· Small Package: 28pin VSOP

· Pin Compatible with AK4393