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.
|Title||Content Type||File Type|
|AD73311: Low Cost, Low Power CMOS General Purpose Analog Front End Data Sheet (Rev B, 06/2000) (pdf, 334 kB)||Data Sheets|
|EE-96: Interfacing Two AD73311 Codecs to the ADSP-218x (pdf, 203 kB)||Application Notes|
AN-327: DAC ICs: How Many Bits Is Enough?
(pdf, 345 kB)
Digital audio playback DACs are available in a variety of different architectures--each with it's own performance tradeoffs.
|AN-211: The Alexander Current-Feedback Audio Power Amplifier (pdf, 1154 kB)||Application Notes|
Benchmarking Integrated Audio: Why CPU Usage Alone No Longer Predicts User Experience
(pdf, 1052 kB)
ASUS P5N32-E SLI Plus: NVIDIA's 650i goes Dual x16
(pdf, 3028 kB)
Realtek Audio Codecs Not Rendering True EAX
(pdf, 138 kB)
Underneath Microsoft's Universal Audio Architecture
(pdf, 250 kB)
(pdf, 811 kB)
|RAQs index||Rarely Asked Questions||HTML|
|Glossary of EE Terms||Glossary||HTML|
Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.
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.