3rd Order Stereo Digital Audio Sigma-Delta Modulator IP Core
The CWda30 is a 3rd order Stereo
Digital Audio Sigma-Delta Modulator. The CWda30 has the Coreworks
Audio Parallel Interface (CWAPI) for the input audio data, which permits
bridging to other interfaces: I2S, SPDIF, AMBA, PowerPC (CoreConnect ™).
Interpolator: Provides 32X over-sampling rate to the input of the Sigma Delta Modulator
(SDM). The interpolator is a multi-stage filter which increases the input sample rate gradually.
Its purpose is to reduce the noise level at the input of the SDM.
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