AD73411BB-80

Overview

The AD73411BB-80 is a low-power analog front end integrating a DSP microcomputer, designed for speech and telephony applications. It features a 16-bit ADC and DAC with 76 dB SNR and a maximum sample rate of 64 kS/s. The DSP engine operates at 52 MIPS with a 19 ns instruction cycle time. This variant includes 80 Kbytes of on-chip RAM configured as 16K words of program memory and 16K words of data memory. It supports programmable input/output gains and utilizes an on-chip reference for single-supply operation.

Feature Summary

• Integrated 16-bit sigma-delta ADC and DAC with 76 dB SNR and 64 kS/s max sample rate
• DSP core based on ADSP-2100 architecture delivering 52 MIPS sustained performance
• 80 Kbytes on-chip memory (16K words PM, 16K words DM)
• Programmable gain amplifier with ranges of 38 dB (ADC) and 21 dB (DAC)

Applications

• Low bit rate high-quality speech compression
• Speech enhancement and recognition systems
• Single or multichannel active noise control
• Telephony signal processing

Procurement Notes

Verify the specific suffix BB-80 corresponds to the industrial temperature range (-20°C to +85°C) and the 119-ball PBGA package. Confirm that the 80K byte memory configuration matches system requirements. Check for ESD sensitivity precautions during handling. Ensure power supply voltages are within the 3.0 V to 3.6 V specification.

Selection Notes

Select the AD73411BB-80 when both analog conversion and digital signal processing are required in a single component. Compare the 80K byte memory capacity against the AD73411BB-40 if larger code storage is needed. Consider the 119-ball PBGA package constraints for PCB layout. Verify that the 64 kS/s sample rate meets the bandwidth requirements of the target audio application.

Part Context

This device belongs to the Analog Devices AD73411 family, which combines an analog front end with a DSP processor. The BB-80 designation specifically indicates the version with 80 Kbytes of internal memory, distinguishing it from the BB-40 variant which has 40 Kbytes. It is part of the broader ADSP-2100 base architecture lineage.

Replacement Considerations

The AD73411BB-40 is a pin-compatible alternative with reduced memory (40 Kbytes). For discrete solutions, the AD73311 can replace the AFE section but requires an external DSP. No direct cross-model replacements are documented in the provided datasheet.