描述 Description

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

特性 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