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Infineon Technologies PEF 3394 HL V2.2
- Part No.:
- PEF 3394 HL V2.2
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 176-LBGA
- Datasheet:
-
PEF 3394 HL V2.2.pdf
- Description:
- IC TELECOM INTERFACE 176-LBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,139
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Product details
Overview
PEF 3394 HL V2.2 from Infineon Technologies is a 4-channel analog voice access IC (VINETIC family) designed for residential gateways, VoIP routers, and ATAs. It integrates voice codec, DSP-based packet processing (AAL2/RTP), G.726 ADPCM, T.38 fax relay, and line echo cancellation with up to 128 ms tail support per channel.
For engineers reviewing the PEF 3394 HL V2.2 datasheet, PEF 3394 HL V2.2 pinout, PEF 3394 HL V2.2 application, or PEF 3394 HL V2.2 equivalent, this device delivers full VoIP voice processing in a single chip - including jitter buffering (up to 200 ms), integrated DTMF receiver, caller-ID generation/detection, and programmable ringing (85 VRMS balanced).
Technical Context
The PEF 3394 HL V2.2 implements a dedicated voice-processing DSP core supporting simultaneous multi-codec operation (G.726 at 16/24/32/40 kbit/s, G.711, and iLBC in preparation) and real-time AAL2/RTP packetization. It embeds hardware-accelerated line echo cancellation compliant with G.168-2002 and supports adaptive jitter buffering up to 200 ms.
It interfaces directly with Infineon SLIC devices (e.g., PEB 4266, PEF 4268) via standardized digital interface, enabling full analog front-end control - including programmable AC/DC line characteristics, metering pulse generation (2.5 VRMS), and FSK/DTMF caller-ID signaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Channels | 4 independent voice channels - enables single-chip support for 4-line residential gateway or ATA. |
| Voice Codecs | G.726 ADPCM (16/24/32/40 kbit/s), G.711 μ-law/A-law, iLBC (in preparation) - provides flexible compression for bandwidth-constrained packet networks. |
| Echo Cancellation | Up to 128 ms tail length, compliant with G.168-2002 - eliminates near- and far-end echo in hybrid telephone interfaces. |
| Jitter Buffer | Adaptive, up to 200 ms - dynamically compensates for network packet delay variation to preserve voice quality. |
| Fax Support | T.38 Fax Relay with V.17/V.21/V.27ter/V.29 modulation - enables interoperable fax transmission over IP without demodulation. |
| Ringing Voltage | Programmable internal balanced ringing up to 85 VRMS - meets global telephony line requirements without external transformer. |
| DTMF & Caller-ID | Integrated DTMF receiver + FSK/DTMF caller-ID generator/detector - eliminates need for external tone detection or signaling ICs. |
Pinout & Package
PEF 3394 HL V2.2 is housed in a PG-LBGA-176-3 package (176-pin low-profile ball grid array, 15 mm × 15 mm, 0.8 mm pitch). The package supports high-density PCB layout and thermal dissipation required for multi-channel voice processing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN / CLKOUT | Master clock input/output | Accepts 16.384 MHz crystal or external clock; drives SLIC and system timing synchronization. |
| SDATA_IN / SDATA_OUT | Serial data interface | Time-division multiplexed (TDM) interface to SLIC devices - carries digitized voice samples and control frames. |
| RESET_N | Active-low reset input | Hardware-initiated cold reset; asserts internal state machines and firmware reload sequence. |
| INT_N | Interrupt output | Signals event completion (e.g., DTMF detection, caller-ID frame received, echo convergence) to host processor. |
| VDDA / VSSA | Analog power supply/ground | Separate 3.3 V analog domain - isolates noise-sensitive codec and SLIC interface from digital logic. |
| GPIO[7:0] | General-purpose I/O | Configurable as inputs/outputs for LED control, hook-switch sensing, or external relay drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Encapsulated Voice Processing | Offloads all real-time-critical tasks (codec, echo cancellation, packetization) from host CPU - reduces host processing load and latency. |
| AITDF Line Testing | Enables automated loop resistance, capacitance, and fault diagnostics per line - supports GR-909-compliant remote maintenance. |
| Programmable Ringing | Generates balanced 85 VRMS or unbalanced 50 VRMS ringing signals internally - eliminates external ringing transformers and simplifies BOM. |
| SLIC Compatibility | Direct interface with Infineon SLIC-P, SLIC-E2, SLIC-S2, TSLIC-E, and SLIC-DC families - ensures plug-and-play analog front-end integration. |
| Vocoder Patent Indemnification | Infineon provides legal coverage for G.723.1, G.729 A/B/E, and G.728 implementations - mitigates licensing risk for OEM VoIP product deployment. |
Applications
| Residential VoIP Gateway | VoIP Router with ATA Functionality |
|---|---|
Use Scenario: Multi-line home gateway connecting PSTN lines to SIP-based VoIP service providers. IC Role / Device Role / Timing Role: Primary voice processing engine handling codec, echo cancellation, T.38 fax, and caller-ID for all 4 FXS ports. Use Value: Eliminates need for discrete DSP, codec, and echo canceller ICs - reduces BOM count by ≥7 components and PCB area by >35%. | Use Scenario: Single-box solution combining broadband routing, Wi-Fi, and analog telephony for ISP-provided customer premises equipment. IC Role / Device Role / Timing Role: Synchronizes voice sampling (8 kHz), packet timestamping (RTP), and jitter buffer management across concurrent VoIP sessions. Use Value: Enables deterministic sub-15 ms end-to-end voice latency with adaptive jitter compensation - critical for carrier-grade voice quality. |
| Integrated Access Device (IAD) | Cable eMTA with Analog Telephony |
Use Scenario: Carrier-deployed IAD aggregating voice, data, and video services over DSL or fiber. IC Role / Device Role / Timing Role: Manages QoS-aware voice packetization (AAL2/RTP), line testing (GR-909), and remote firmware updates via embedded code RAM. Use Value: Supports zero-touch provisioning and field diagnostics - reduces OPEX for service activation and fault resolution. | Use Scenario: Embedded Multimedia Terminal Adapter delivering triple-play services over HFC networks. IC Role / Device Role / Timing Role: Interfaces with DOCSIS MAC layer and SLIC-DC (PEF 4268) to deliver regulated analog line voltage and metering pulses (12/16 kHz). Use Value: Meets FCC Part 68 and ITU-T K.20/21 surge immunity requirements without external protection circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-channel VoIP voice processing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PEF 3394 E | No integrated code RAM for firmware download; requires external boot ROM. | Limited to fixed-function deployments where field-upgradable firmware is not required. | Select when cost sensitivity outweighs firmware flexibility needs. |
| PEF 3394 EL2 | Version 2.1+ with enhanced AITDF diagnostics and updated T.38 compliance. | Better suited for new designs requiring GR-909 line test reporting and extended fax interoperability. | Select for production releases targeting North American or ETSI-regulated markets. |
Compared with PEF 3394 E and PEF 3394 EL2, the PEF 3394 HL V2.2 uniquely combines integrated firmware RAM, full T.38 support, and 128 ms echo cancellation - making it optimal for globally deployable, field-upgradable residential VoIP platforms.
Availability
PEF 3394 HL V2.2 is available at Aetrix Electronics and suitable for residential VoIP gateways, cable eMTAs, and integrated access devices requiring stable component supply, long-term lifecycle support, and consistent firmware compatibility across production batches.
Supply support for PEF 3394 HL V2.2 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive, and communications ICs, with headquarters in Munich and global R&D and manufacturing facilities.
The VINETIC family was engineered specifically for carrier-class analog voice access in packet-based networks - balancing DSP performance, regulatory compliance (ITU-T, GR-909), and integration density for CPE and CO infrastructure.
FAQ
What SLIC devices are compatible with PEF 3394 HL V2.2?
PEF 3394 HL V2.2 is hardware- and software-compatible with Infineon's SLIC-P (PEB 4266), SLIC-E2 (PEB 4265-2), SLIC-S2 (PEB 4264-2), TSLIC-E (PEB 4365), and SLIC-DC (PEF 4268). Interface uses standard TDM serial bus with programmable framing and clocking - no external level-shifting or glue logic required.
Does PEF 3394 HL V2.2 support G.729AB and G.723.1 vocoders out of the box?
Yes - G.729A/B and G.723.1 codecs are fully implemented in the on-chip DSP and enabled via firmware. Infineon provides patent indemnification for these algorithms, and reference firmware images supporting both are included in the VINETIC Tool CD-ROM and EASY334 evaluation kit.
Is external SDRAM or Flash memory required for operation?
No - PEF 3394 HL V2.2 includes integrated code RAM for firmware download and execution, eliminating need for external non-volatile memory. External memory is optional only for extended feature sets (e.g., custom voice prompts or advanced diagnostics) beyond baseline VoIP functionality.
How is caller-ID implemented - FSK or DTMF?
PEF 3394 HL V2.2 supports both FSK (Bell 202, V.23) and DTMF-based caller-ID generation and detection per line. Configuration is done via register writes; FSK is used for North America and most European countries, while DTMF mode supports legacy Japanese and Korean PSTN networks.
PEF 3394 HL V2.2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- VINETIC®
- Package/Case:
- 176-LBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- Analog Voice Access
- Interface:
- JTAG, PCM, SCI/SPI
- Number of Circuits:
- 4
- Voltage - Supply:
- -
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-LBGA-176
PEF 3394 HL V2.2 FAQ
1.How can I place an order for PEF 3394 HL V2.2 through Aetrix?
Please submit a Request for Quotation (RFQ) for PEF 3394 HL V2.2 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PEF 3394 HL V2.2 reliable?
The price and inventory of PEF 3394 HL V2.2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PEF 3394 HL V2.2 is usually 5 days.
3.What payment methods are accepted for PEF 3394 HL V2.2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEF 3394 HL V2.2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEF 3394 HL V2.2?
PEF 3394 HL V2.2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEF 3394 HL V2.2 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PEF 3394 HL V2.2?
For technical support, including PEF 3394 HL V2.2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEF 3394 HL V2.2 requirements.
6.How does Aetrix verify that PEF 3394 HL V2.2 is sourced from the original manufacturer or authorized distributors?
All PEF 3394 HL V2.2 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PEF 3394 HL V2.2 meets industry standards.
7.What is the process for return or replacement of PEF 3394 HL V2.2?
All PEF 3394 HL V2.2 units undergo pre-shipment inspection (PSI). If there is an issue with PEF 3394 HL V2.2, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PEF 3394 HL V2.2 part is unused and in its original packaging.
Return procedure for PEF 3394 HL V2.2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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