AD73311ARSZ-REEL Datasheet

Interface - CODECs


The AD73311( AD73311ARSZ-REEL ) is a complete front-end processor for general purpose applications including speech and telephony. It features a 16-bit A/D conversion channel and a 16-bit D/A conversion channel. Each channel provides 70 dB signal-to-noise ratio over a voiceband signal bandwidth. The final channel bandwidth can be reduced, and signal-to-noise ratio improved, by external digital filtering in a DSP engine. The AD73311 is suitable for a variety of applications in the speech and telephony area including low bit rate, high quality compression, speech enhancement, recognition and synthesis. The low group delay characteristic of the part makes it suitable for single or multichannel active control applications. The gains of the A/D and D/A conversion channels are programmable over 38 dB and 21 dB ranges respectively. An on-chip reference voltage is included to allow single supply operation. A serial port (SPORT) allows easy interfacing of single or cascaded devices to industry standard DSP engines. The AD73311 is available in both 20-lead SOIC and SSOP packages. AD73311ARSZ-REEL Features • Single (+2.7 V to +5.5 V) Supply Operation• 50 mW Max Power Consumption at 2.7 V• On-Chip Reference• 20-Lead SOIC/SSOP Package AD73311ARSZ-REEL Applications • General Purpose Analog I/O• Speech Processing• Cordless and Personal Communications• Telephony• Active Control of Sound & Vibration• Data Communications


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