PEF 21624 E V1.2-G

Telecom Overview

The Infineon PEF 21624 E V1.2-G is a single-channel Symmetric DSL Front End (SDFE-1) belonging to the SOCRATES family of SHDSL transceivers. It integrates a DSP, microcontroller, analog front end, line driver, and memory into one chip. The device supports payload data rates from 144 kbit/s up to 6.392 kbit/s with 8 kbit/s granularity. It operates on two power supplies: 3.3 V and 1.8 V, consuming approximately 500 mW per channel. The component functions within a temperature range of -40°C to +85°C and utilizes a P-LBGA-324 package measuring 19 mm x 19 mm.

Telecom Feature Summary

• Fully integrated single-chip solution combining DSP, microcontroller, analog front end, line driver, and memory for pure TDM applications.
• Supports flexible PSD shaping and sophisticated TC-PAM line coding compliant with ITU-T G.991.2 standards.
• Includes integrated HDLC controllers with 128-byte FIFO buffers for each channel to handle EOC processing.
• Features tunable hybrid technology for optimal loop adaptation and reach in various network configurations.

Telecom Applications

• ISDN primary rate access replacement
• SHDSL repeater and regenerator units
• Digital Loop Carrier systems
• Extended range full and fractional E1/T1 services
• Wireless infrastructure and SDH/SONET termination

Telecom Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and environmental compliance status. Confirm current lifecycle status as distribution availability may vary by region. Ensure compatibility with existing system power rails and interface requirements before procurement.

Telecom Selection Notes

Select this model for applications requiring a single-channel SHDSL interface with low external component count. It is suitable for remote powered repeater designs due to its low power consumption. Verify that the required data rate granularity and TDM clock frequencies align with system specifications.

Telecom Part Context

This component is part of the SDFE-4/2/1 family, which includes quad, dual, and single-channel variants. All members share pin and software compatibility, facilitating scalable design implementations across different port density requirements while maintaining consistent integration levels.

Telecom Replacement Considerations

The PEF 21624 E serves as the single-channel variant within the SDFE family. Direct substitutes include other single-channel SHDSL transceivers from the same manufacturer series, provided they maintain pin and software compatibility with the P-LBGA-324 package.

Telecom FAQ

What is the maximum supported payload data rate?

The device supports payload data rates ranging from 144 kbit/s up to 6.392 kbit/s with an 8 kbit/s granularity.

Does the component support EOC handling?

Yes, it includes four integrated HDLC controllers for EOC handling, with one controller per channel and 128-byte FIFO buffers for transmit and receive directions.

What are the required power supply voltages?

The component requires only two power supplies: 3.3 V and 1.8 V.