PEF 3304 HL V2.1

Telecom Overview

The PEF3304HLV2.1-G is a four-channel analog voice access integrated circuit from Infineon’s VINETIC family, optimized for Customer Premises Equipment and Central Office applications. It integrates a fully programmable codec with voice processing DSP capabilities, supporting hardware and software compatibility across the VINETIC portfolio. The device provides comprehensive Voice over Packet features including ATM AAL2 and RTP packetization with jitter buffer management up to 200 ms. It supports multiple voice compression standards such as G.728, G.723.1, G.729, and G.726 ADPCM. Additionally, it includes line echo cancellation exceeding ITU-T G.165/G.168 specifications and advanced integrated test functions.

Telecom Feature Summary

• Integrated four-channel CODEC with voice processing DSP for flexible TDM and VoIP solutions
• Supports ATM AAL2 and RTP packetization with fixed and adaptive jitter buffers
• Includes line echo cancellation with tails up to 128 ms and fax relay support
• Features integrated DTMF receiver and caller-ID generator/detector

Telecom Applications

• Residential Gateways and VoIP Routers
• Analog Telephone Adapters (ATAs)
• Integrated Access Devices (IAD)
• Access Network equipment including DSLAMs and FTTH systems

Telecom Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment against official datasheet specifications. Ensure compliance with RoHS directives and relevant environmental regulations prior to integration into final assemblies.

Telecom Selection Notes

Select this model when four simultaneous voice channels are required alongside robust packet-based voice processing. It is suitable for designs needing integrated echo cancellation and multiple codec support without external RAM dependencies. Consider its compatibility with Infineon SLIC devices for complete telephony interface solutions.

Telecom Part Context

This component belongs to the VINETIC Enhanced Next Generation Analog Telephony Solutions family. It shares functional similarities with other members like the PEF3314 and PEB3324 series but is specifically configured for four-channel operations. The V2.1 designation indicates a specific revision within the extended product lifecycle.

Telecom Replacement Considerations

Direct substitutes include other VINETIC family members such as PEF3314HL or PEF3394HL which offer similar channel counts and DSP capabilities. Verify pinout and firmware compatibility before swapping components in existing designs.

Telecom FAQ

Does the PEF3304HLV2.1-G require external memory?

No, the device does not require external RAM for operation.

What is the maximum tail length for line echo cancellation?

The integrated line echo cancellation supports tails up to 128 ms.

Is fax relay support included in this IC?

Yes, the component supports T.38 Fax Relay including V.17/V.21/V.27ter/V.29 protocols.