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A Single Chip AES3 Receiver and Transmitter and Asynchronous Sample Rate Converter Supporting Sample Rates from 32 kHz to 192 kHz

A single chip AES3 receiver and transmitter with an asynchronous sample rate converter is presented that supports sample rates from 32 kHz to 192 kHz. This single chip has a highly flexible architecture that allows the receiver, transmitter and sample rate converter to be independently interconnected amongst themselves and to two serial input ports and two serial output ports. The AES3 receiver recovers the audio data, channel status, user bits and clock with jitter less than 150 ps from an incoming AES3 stream with sample rates up to 192 kHz while complying with the AES3, AES11 and SMPTE337M standards. The asynchronous sample rate converter is capable of upsampling by 1 to 8 and downsampling by 7.75:1 while maintaining a minimum of 120dB THD+N. The AES3 Transmitter can transmit data at sample rates up to 192kHz and supports the AES3 and AES11 standards. The received and transmitted channel status and user bits are buffered without the use of arbitration logic for fast access through a control port.

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