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AD73311:  Single-Channel, 3 V and 5 V Front-End Processor for General Purpose Applications Including Speech and Telephony

The AD73311 and AD73311L are complete front-end processors for general-purpose applications including speech and telephony. They feature 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 the voiceband signal bandwidth. The AD73311L is a follow-on to the AD73311 with improved on-chip filtering, more sample-rate options and ...More

AD73311:  Single-Channel, 3 V and 5 V Front-End Processor for General Purpose Applications Including Speech and Telephony

Product Description

The AD73311 and AD73311L are complete front-end processors for general-purpose applications including speech and telephony. They feature 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 the voiceband signal bandwidth. The AD73311L is a follow-on to the AD73311 with improved on-chip filtering, more sample-rate options and lower cost. The L version operates from 3.0 V only, where as the AD73311 operates from either 3 V or 5 V power supplies.

The gains of the A/D and D/A conversion channels are programmable over 38 dB and 21 dB respectively. An on-chip reference voltage is included to allow single-supply operations. A serial port (SPORT) allows easy interfacing for single or cascaded devices to industry standard DSP engines.

The AD73311 and AD73311L are suitable for a variety of applications in the speech and telephony areas 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 multi-channel active-control applications.

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  • 16-Bit A/D Converters
  • 16-Bit D/A Converters
  • Programmable Input/Output Sample Rates
  • 75 dB ADC SNR
  • 70 db DAC SNR
  • 64 ksps Maximum Sample Rate
  • -90 db Crosstalk
  • Programmable Input/Output Gain
  • Low group Delay:
    25 µs per ADC ch
    50 µs per DAC ch
  • Flexible Serial Port Allows Up to 4 Codecs To Be Connected in Cascade Giving 8 I/O Channels
  • Single 2.7 V to 5.5 V Supply Operation
  • 50 mW Max Power Dissipation at 2.7 V
  • # ADC: 1
  • # DAC: 1
  • ADC SNR (dB): 75dB
  • DAC SNR (dB): 70dB
  • THD+N (dB): ADC: -83,DAC: -70
  • Product Description: Single-Channel, 3 V and 5 V Front-End Processor for Gen Purp Apps Including Speech and Telephony

Functional Block Diagram for AD73311

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AD1835A 2 8 105 108 105 108 ADC: -95, DAC: -95 96 kHz, 24-bit Sigma Delta CODEC $9.15
AD73311L 1 1 - - 76 77 ADC: -83, DAC: -70 Single-Channel, 3 V and 5 V Front-End Processor for Gen Purp Apps Including Speech and Telephony $2.69
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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.