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Quad Voice CODEC compliant to ITU-T G.712
Cologne Chip’s IP core C3-CODEC-G712-4 consists of four voice CODECs for telephony applications in compliance with ITU-T recommendation G.712 or G.711.
Usually the ADC and the DAC in a CODEC need analog parts to be integrated into the chip. In contrast C3-CODEC-G712-4 is fully digital. All needed analog characteristics are moved into a few external resistors and capacitors per CODEC. The analog functionality is connected outside the core to three digital I/O Buffers per CODEC.
The main part of the core area is used for digital filters in the transmit and receive path according to ITU-T recommendation G.712. There are sophisticated digital machines in the frontend of the core to minimize the external component cost. Implementing analog functions into fully digital CMOS circuitries becomes feasible by means of DIGICC, Cologne Chip’s digital approach for IP cores. A patent is pending for this DIGICC technology of Cologne Chip.
Usually the ADC and the DAC in a CODEC need analog parts to be integrated into the chip. In contrast C3-CODEC-G712-4 is fully digital. All needed analog characteristics are moved into a few external resistors and capacitors per CODEC. The analog functionality is connected outside the core to three digital I/O Buffers per CODEC.
The main part of the core area is used for digital filters in the transmit and receive path according to ITU-T recommendation G.712. There are sophisticated digital machines in the frontend of the core to minimize the external component cost. Implementing analog functions into fully digital CMOS circuitries becomes feasible by means of DIGICC, Cologne Chip’s digital approach for IP cores. A patent is pending for this DIGICC technology of Cologne Chip.
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