E-STLC7550TQF7

Analog Front End (AFE) Overview

The STLC7550TQF7 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 a maximum sampling frequency of 45kHz. The device operates on a single power supply ranging from 2.7V to 5.5V, consuming less than 30mW at 3V. Key electrical specifications include an 83dB signal-to-noise ratio up to 9.6kHz sampling frequency and an 87dB dynamic range at 3V. It features a synchronous serial interface supporting master or slave operations.

Analog Front End (AFE) Feature Summary

• Integrates 16-bit oversampling Sigma-Delta A/D and D/A converters
• Supports V.34bis and 56Kbps modem protocols with host processor control
• Operates on a single 2.7V to 5.5V power supply with <30mW consumption
• Includes internal clock generator and programmable sampling frequencies

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 E-STLC7550TQF7 suffix indicates ECOPACK compliance as per the datasheet ordering codes. Confirm the TQFP48 package dimensions (7 x 7 x 1.4mm). Check for obsolete status notifications from STMicroelectronics before finalizing procurement plans.

Analog Front End (AFE) Selection Notes

Select this component for battery-operated appliances requiring low voltage operation down to 2.7V. Ensure the host processor can handle the required modulation software, as the STLC7550 functions primarily as an analog front-end. Verify compatibility with the TQFP48 package for surface mount assembly.

Analog Front End (AFE) Part Context

The STLC7550 serves as a general-purpose signal processing AFE. It is compatible with the STLC7546 mode of operation, facilitating multi-AFE architecture designs by saving external logical glue when used in slave mode. It is manufactured using a 0.50µm CMOS process.

Analog Front End (AFE) Replacement Considerations

The STLC7546 is noted as mode-compatible. Verify pinout and register configuration differences if substituting directly. No other specific replacement part numbers are documented in the provided source material.