"The CWda52 is a Multi-channel Asynchronous Audio Sample Rate Converter (ASRC). This core can be used to interface digital audio equipment operating at different sample rates. It has been designed for systems requiring very high quality in terms of harmonic distortion and noise: it can realize most common sample rate conversions with less than -120 dB of Total Harmonic Distortion plus Noise (THD+N), having also a Dynamic range of 131 dB. The CWda52 uses the Coreworks Link Interface (CW-Link) for input and output audio data, which permits bridging to other interfaces: I2S, SPDIF-AES/EBU, AMBA, PowerPC (CoreConnect)
Device Family Support
# Virtex-5 LXT
# Virtex-5 LX
# Virtex-5 SXT
# Virtex-4 FX
# Virtex-4 LX
# Virtex-4 SX
# Virtex-II Pro
# Spartan-3E
# Spartan-3
# Spartan-IIE
Key Features
# Converts between asynchronous sample rates
# Multi-channel audio, configurable up to 8 channels
# Lower than -120 dB THD+N for common conversion rates
# Greater than 131 dB Dynamic Range for common conversion rates
# Fully digital solution
# Input and output sample rate range: 8kHz to 96kHz
# Sampling rate conversion ratios from 7:1 to 1:7"