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CWda19 - I2S/TDM-Tx-Pro: Configurable Multi-channel Serial Audio Transmitter
Portability: ASIC, FPGA, Structured ASIC
Maturity: FPGA proven
Availability: Now
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Overview

The TDM-Tx-Pro (CWda19) is part of the AudioWorks family of proven audio interface cores featuring a configurable multi-channel audio interface designed to output a serial (TDM) digital audio stream. The TDM-Tx-Pro front-end interface also supports the well known stereo formats: Philips I2S, Left-Justified or Right-Justified. The TDM-Tx-Pro backend interface is supplied with a choice of AMBA®, CoreConnect™ or a flexible parallel interface

Specifications

  • Runtime configurable output format: multi-channel audio serial (TDM) and also I2S, LeftJustified, Right-Justified
  • Supports all commonly used sample rates including 32, 44.1, 48, 96 and 192 kHz
  • Runtime configurable sample width, ranging from 8 to 32 bits per sample
  • Pre-synthesis configurable sample FIFO depth
  • Reports FIFO full condition
  • Reports number of samples in FIFO
  • Runtime configurable LowerFIFO-Limit; a request is activated when this limit is exceeded
  • Supports slave or master modes of the audio bus
  • Supports up to 128 audio channels
  • Double clock domain design: output clock is unrelated to the sample rate frequency, Fs
  • Reports channel synchronization lost

Interfaces

  • AMBA-APB, AMBA-AHB or parallel interface for configuration, control and status
  • AMBA-APB, AMBA-AHB or parallel interface for audio input
  • I2S/TDM interface for audio output
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