AKM AK5397高性能32位立体声ADC解决方案

AKM公司的AK5397是高性能32位立体声ADC,立体声输出的动态范围127dB,取样频率8kHz ~ 768kHz,S/(N+D)为108dB,通带 0 ~ 21.82kHz (@ fs=48kHz) ,阻带衰减100dB,通带波动+0.00010/-0.00015dB.本文介绍了AK5397主要特性,框图, 应用电路图以及评估板AKD5397-SA主要特性和电路图.
The AK5397 is a high performance 32-bit stereo ADC that achieves class leading performance of 127dB dynamic range for stereo output. This is a flagship addition to AKM’s VERITA series of product in the Audio 4 ProTM family. The AK5397 integrates a newly developed circuit by VELVET SOUNDTM technology achieving rich sound field and bass representation that realizes a music playback experience with less distortion. The class leading performance with a maximum 768kHz PCM output is supported for digital output and newly developed 32-bit digital filters are integrated for the best sound quality. The AK5397 is suitable for digital video recorders and high quality sound studio mixers for recording and editing high-resolution sound sources.
AK5397主要特性:
Advanced multi bit Architecture ADC
Resolution: 32bit
Sampling Rate: 8kHz ~ 768kHz
Full Differential Inputs
S/(N+D): 108dB
DR, S/N: 127dB (Mono Mode: 130dB)
Sharp Roll Off Digital Filter (GD=41.5/fs)
Passband: 0 ~ 21.82kHz (@ fs=48kHz)
Passband Ripple: +0.00010/-0.00015dB
Stopband Attenuation: 100dB
Short Delay Digital Filter (GD=12.5/fs)
Passband: 0 ~ 22.22kHz (@ fs=48kHz)
Passband Ripple: +0.055/-0.015dB
Stopband Attenuation: 93dB
Minimum Phase Digital Filter (GD=3.5/fs)
Passband: 0 ~ 21.75kHz(@ fs=48kHz)
Passband Ripple: +0.04/-0.02dB
Stopband Attenuation: 93dB
Master / Slave Mode
Master Clock:
256fs/512fs (Normal Speed; 8kHz~48kHz)
256fs (Double Speed; 48Hz ~ 96kHz)
128fs (Quad Speed; 96kHz ~ 192kHz)
64fs (Octal Speed; 192kHz ~ 384kHz)
32fs (Hex Speed; 384kHz ~ 768kHz)
Audio Interface Format: 32bit MSB justified, I2S compatible or TDM
Cascade TDM I/F: 8ch/...