STLC7550TQF7TR

Analog Front End (AFE) Overview

The STLC7550TQF7TR is a low-power, low-voltage analog front-end (AFE) designed for V.34bis and 56Kbps modem applications. It integrates 16-bit oversampling Sigma-Delta A/D and D/A converters with an on-chip reference voltage. Operating on a single supply of 2.7V to 5.5V, it delivers an 83dB signal-to-noise ratio at sampling frequencies up to 9.6kHz and an 87dB dynamic range at 3V. The device features a synchronous serial interface supporting master or slave operations, programmable sampling frequencies up to 45kHz, and consumes less than 30mW in active mode.

Analog Front End (AFE) Feature Summary

• Integrates 16-bit oversampling Sigma-Delta A/D and D/A converters with 87dB dynamic range at 3V
• Supports V.34bis and 56Kbps modem applications with programmable sampling frequencies up to 45kHz
• Features a synchronous serial interface compatible with host processors in master or slave modes
• Operates on a single power supply ranging from 2.7V to 5.5V with standby power consumption under 3mW

Analog Front End (AFE) Applications

• Hand Held PCs (HPC)
• Personal Digital Assistants (PDA)
• Webphones
• Network Computers
• Set Top Boxes for Digital Television

Analog Front End (AFE) Procurement Notes

Verify the obsolete status of the STLC7550 series before procurement planning. Confirm that the TQFP48 package dimensions match the design footprint. Ensure the tape and reel packaging specification aligns with automated assembly requirements. Check for available replacement components due to end-of-life status.

Analog Front End (AFE) Selection Notes

Select this component for host-processing modem architectures where modulation software runs on external processors like Pentium, RISC, or DSPs. Choose the STLC7550TQF7TR variant when tape and reel packaging is required for surface-mount technology. Ensure the application operates within the 0°C to 70°C temperature range and utilizes a single 3V nominal supply.

Analog Front End (AFE) Part Context

The STLC7550TQF7TR is the tape and reel version of the STLC7550, housed in a TQFP48 package. It is part of the STLC7550 family, which includes tube-packaged variants such as the STLC7550TQF7. The device is manufactured using a 0.50µm CMOS process and is designed for battery-operated appliances requiring low power dissipation.

Analog Front End (AFE) Replacement Considerations

The product is listed as obsolete. No specific public substitute part numbers are documented in the provided source material.