AD28MSP01KP

Overview

The AD28MSP01KP is a complete analog front end designed for high-performance DSP-based modems. It integrates all necessary data conversion, filtering, and clock generation circuitry to implement echo-cancelling modem functions with a single host digital signal processor. The device supports software-programmable sample rates and clocking modes, accommodating established modem standards such as V.32ter, V.32bis, and V.32. It operates on a single +5V supply and includes features like linear-coded 16-bit sigma-delta ADC and DAC, on-chip anti-alias filters, and a transmit digital phase-locked loop for terminal synchronization.

Feature Summary

• Complete analog I/O port for DSP-based FAX/MODEM applications
• Linear-coded 16-bit Sigma-Delta ADC and DAC with on-chip anti-alias and anti-image filters
• Supports sampling rates of 7.2 kHz, 8.0 kHz, and 9.6 kHz, plus 8/7 mode variants
• Integrated transmit digital phase-locked loop for terminal synchronization

Applications

• High performance DSP-based modems compliant with V.32ter, V.32bis, V.32, V.22bis, V.22, V.21, and Bell 212A standards
• 103 Fax and cellular-compatible modems
• V.33, V.29, V.27ter, V.27bis, V.27, and V.26bis integrated fax, modem, and speech processing systems

Procurement Notes

Verify the specific suffix 'KP' against official Analog Devices documentation to confirm package type and temperature range specifications. Ensure compatibility with the required +5V operating voltage and check for any specific ordering or screening levels associated with this part number variant before procurement.

Selection Notes

Select the AD28MSP01KP when designing echo-cancelling modems requiring a single-chip solution for data conversion and filtering. It is suitable for applications needing support for multiple modem standards including V.32bis and V.34. Consider the 28-pin DIP, 44-lead PLCC, or 28-lead SOIC packages based on board space and assembly requirements.

Part Context

The AD28MSP01 is part of a family of voiceband signal ports from Analog Devices, which also includes models like the AD28MSP02. These devices are engineered to simplify system design by integrating complex analog front-end functions into a single component, reducing the bill of materials and board complexity for DSP-based communication equipment.

Replacement Considerations

Publicly confirmed substitute part numbers for the AD28MSP01KP are not available in the provided reference material. Evaluate alternatives based on functional equivalence in analog front-end capabilities and DSP interface compatibility.