AD73411 Datasheet | Analog Devices

FEATURES Low-Power Analog Front End with DSP Microputer AD73411 FUNCTIONAL BLOCK DIAGRAM POWER-DOWN CONTROL DATA ADDRESS GENERATORS DAG 1 DAG 2 MEMORY 16K PM 16K DM (OPTIONAL (OPTIONAL 8K) 8K) AFE PERFORMANCE 16-Bit A/D Converter 16-Bit D/A Converter Programmable Input/Output Sample Rates 76 d B ADC SNR 77 d B DAC SNR 64 k S/s Maximum Sample Rate - 90 d B Crosstalk Low Group Delay (25 ␮ s Typ per ADC Channel, 50 ␮s Typ per DAC Channel) Programmable Input/Output Gain On-Chip Reference DSP PERFORMANCE 19 ns Instruction Cycle Time @ 3.3 V, 52 MIPS Sustained Performance AD73411-80 80K Bytes of On-Chip RAM, Configured as 16K Words Program Memory RAM and 16K Words Data Memory RAM AD73411-40 40K Bytes of On-Chip RAM, Configured as 8K Words Program Memory RAM and 8K Words Data Memory RAM FULL MEMORY MODE PROGRAMMABLE I/O AND FLAGS EXTERNAL ADDRESS BUS EXTERNAL DATA BUS BYTE DMA CONTROLLER OR EXTERNAL DATA BUS TIMER INTERNAL DMA PORT HOST MODE PROGRAM SEQUENCER PROGRAM MEMORY ADDRESS DATA MEMORY ADDRESS PROGRAM MEMORY DATA DATA MEMORY DATA ARITHMETIC UNITS ALU MAC SHIFTER ADSP-2100 BASE ARCHITECTURE SERIAL PORTS SPORT 0 SPORT 1 SERIAL PORT SPORT 2 ANALOG FRONT END SECTION GENERAL DESCRIPTION The AD73411 is a single device incorporating a single analog front end (AFE) and a microputer optimized for digital signal processing (DSP) and other high-speed numeric processing applications. The AD73411’s analog front end (AFE) section is suitable for general-purpose applications including speech and telephony. The AFE section features a 16-bit A/D converter and a 16-bit D/A converter. Each converter provides 76 d B signal-to-noise ratio over a voiceband signal bandwidth. The AD73411 is particularly suitable for a variety of applications in the speech and telephony area, including low bit rate, highquality pression, speech enhancement, recognition, and synthesis. The low group delay characteristic of the AFE makes it suitable for single or multichannel active...