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Infineon Technologies PEF 3304 E V2.1-G
- Part No.:
- PEF 3304 E V2.1-G
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 176-LBGA
- Datasheet:
-
PEF 3304 E V2.1-G.pdf
- Description:
- IC TELECOM INTERFACE 176-LBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,957
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Product details
Overview
PEF 3304 E V2.1-G from Infineon Technologies is a 4-channel analog voice access IC with integrated DSP, designed for VoIP residential gateways and ATAs. It supports G.729A/B/E, G.723.1, G.726 ADPCM (32/24/16/40 kbit/s), G.711, and T.38 fax relay, with line echo cancellation up to 128 ms per channel and AAL2/RTP packetization.
For engineers reviewing the PEF 3304 E V2.1-G datasheet, PEF 3304 E V2.1-G pinout, PEF 3304 E V2.1-G application, or PEF 3304 E V2.1-G equivalent, key selection criteria include VoIP codec support, integrated echo cancellation tail length, SLIC compatibility (SLIC-P/E/E2/S/S2/TSLIC-E/S/LCP/DC), jitter buffer depth (up to 200 ms), and T.38 fax relay compliance.
Technical Context
The PEF 3304 E V2.1-G implements a dedicated voice-processing DSP core supporting simultaneous operation of four vocoders (e.g., G.729 + G.723.1 + G.726 + G.711) and real-time AAL2/RTP packetization with adaptive jitter buffering. Its architecture integrates GR-909-compliant AITDF for line testing and QoS monitoring.
It interfaces directly with Infineon's SLIC family via standardized digital control and analog line interface paths, enabling full programmability of AC/DC line characteristics independent of regional telephony standards. The device operates in TDM or packet-based voice modes without external RAM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Channels | 4 independent POTS line interfaces with full-duplex voice path |
| Vocoder Support | G.729A/B/E, G.723.1, G.726 (16/24/32/40 kbit/s), G.711 μ-law/A-law, iLBC (in preparation) |
| Echo Cancellation | G.168-2002 compliant with 128 ms tail length per channel |
| Jitter Buffer | Adaptive AAL2/RTP buffer up to 200 ms for packet loss concealment |
| Fax Relay | T.38 compliant with V.17/V.21/V.27ter/V.29 modulation support |
| DTMF & Caller ID | Integrated DTMF receiver and FSK/DTMF caller-ID generator/detector |
| Ringing Generation | Programmable balanced ringing up to 85 VRMS; unbalanced up to 50 VRMS |
Pinout & Package
PEF 3304 E V2.1-G is housed in a PG-LBGA-176-3 package (176-pin plastic low-profile ball grid array, 15 mm × 15 mm, 0.8 mm pitch).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO / VDDA / VDDD | Power supply domains | Separate 3.3 V I/O, analog, and digital core supplies for noise isolation |
| CLKIN / CLKOUT | Master clock interface | Accepts 16.384 MHz crystal or external clock; drives system timing distribution |
| HSTX / HSRC | Host interface data bus | 8-bit parallel host interface with handshake signals for firmware download and control |
| SLICx_TX / SLICx_RX | SLIC digital interface | Four independent serial TDM links (each 256 kbit/s) to SLIC devices |
| LINEx_P / LINEx_N | Analog line interface | Differential inputs/outputs per channel for direct connection to hybrid or SLIC analog front-end |
| RESET_N | Active-low reset input | Synchronous deassertion required for deterministic DSP initialization sequence |
Key Features
| Feature | Design Value |
|---|---|
| Encapsulated Voice Processing | Offloads all real-time voice tasks (codec, echo cancellation, packetization) from host CPU |
| AITDF Line Testing | On-chip diagnostics including loop resistance, capacitance, battery voltage, and tip/ring reversal detection |
| SLIC Compatibility | Hardware- and software-compatible with 9 Infineon SLIC variants (SLIC-P/E/E2/S/S2/TSLIC-E/S/LCP/DC) |
| No External RAM Required | Integrated code RAM enables full firmware download and execution without external memory |
| Country-Independent Line Programming | AC impedance, DC feed, and ringing profiles configurable per ITU-T and regional LSSGR requirements |
Applications
| Residential VoIP Gateway | Integrated Access Device (IAD) |
|---|---|
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 conversion, echo cancellation, and RTP packetization for all 4 POTS lines. Use Value: Eliminates need for external DSP or packet engine; reduces BOM count by integrating T.38 fax relay and GR-909 line test functions. | Use Scenario: Carrier-class IAD aggregating voice, data, and video for business customers over DSL or fiber. IC Role / Device Role / Timing Role: Central analog interface managing simultaneous VoIP sessions, caller-ID delivery, and metering pulse generation. Use Value: Supports concurrent G.729 + G.723.1 vocoders and 128 ms echo cancellation-meeting CO-grade voice quality targets. |
| Cable eMTA | DSLAM Line Card |
Use Scenario: Embedded Multimedia Terminal Adapter combining DOCSIS cable modem with 4-port VoIP telephony. IC Role / Device Role / Timing Role: Analog front-end controller interfacing with SLIC-E2 and providing jitter-buffered RTP streams to media processor. Use Value: Adaptive 200 ms jitter buffer maintains MOS ≥4.0 under 2% packet loss; integrated DTMF detection avoids host CPU polling. | Use Scenario: Central office DSLAM line card delivering POTS service over copper pairs in FTTC/FTTN deployments. IC Role / Device Role / Timing Role: TDM-to-packet bridge converting legacy TDM voice to ATM AAL2 cells for backhaul to softswitch. Use Value: AAL2 packetization with CRC-10 and segmentation/reassembly reduces transport overhead by 30% vs raw PCM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-channel VoIP codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PEF 3304 HL | Same silicon, higher-grade screening (industrial temp range −40°C to +85°C vs. commercial 0°C to +70°C) | Required for outdoor cabinet or high-ambient-temperature DSLAM deployments | Select when extended temperature operation or longer lifecycle qualification is mandated |
| PEB 3324 E | Pin-compatible 4-channel variant with enhanced SLIC support (adds SLIC-DC), no iLBC prep, identical echo/JB specs | Preferred where DC-fed SLICs (e.g., PEF 4268) are used in low-power CPE designs | Choose if SLIC-DC integration or lower standby power (<15 mW/channel) is critical |
Compared with PEF 3304 HL, the V2.1-G offers identical feature set at commercial temperature grade; versus PEB 3324 E, it lacks SLIC-DC support but retains iLBC readiness-making it optimal for cost-sensitive residential gateways requiring future-proof vocoder flexibility.
Availability
PEF 3304 E V2.1-G is available at Aetrix Electronics and suitable for residential VoIP gateways, integrated access devices (IADs), and cable eMTAs requiring stable component supply, long-term manufacturability, and consistent firmware compatibility across production batches.
Supply support for PEF 3304 E V2.1-G 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 global R&D centers and wafer fabs in Europe and Asia.
The VINETIC product line was engineered specifically for carrier-grade and CPE voice access systems, emphasizing integration of TDM/packet voice processing, SLIC interoperability, and regulatory-compliant line interface functionality.
FAQ
What is the maximum supported jitter buffer depth for PEF 3304 E V2.1-G?
The device supports an adaptive jitter buffer up to 200 ms in both AAL2 and RTP packet modes. This depth is programmable per channel and dynamically adjusted during call setup to maintain voice quality under variable network latency and packet loss conditions, meeting ITU-T G.114 one-way delay targets for conversational voice.
Does PEF 3304 E V2.1-G require external RAM for firmware execution?
No. The IC contains integrated code RAM sufficient to store and execute the full voice processing firmware-including vocoder libraries, echo canceller coefficients, and packetization engines-without external memory. This simplifies PCB layout and eliminates boot-time dependencies on external SPI Flash or SDRAM.
Which SLIC devices are compatible with PEF 3304 E V2.1-G?
It is hardware- and software-compatible with nine Infineon SLICs: SLIC-P (PEB 4266), SLIC-E (PEB 4265), SLIC-E2 (PEB 4265-2), SLIC-S (PEB 4264), SLIC-S2 (PEB 4264-2), TSLIC-E (PEB 4365), TSLIC-S (PEB 4364), SLIC-LCP (PEB 4262), and SLIC-DC (PEF 4268). Interface uses standard 256 kbit/s TDM serial links.
Is T.38 fax relay fully implemented in hardware or firmware?
T.38 fax relay is implemented in dedicated hardware blocks within the VINETIC DSP core, including V.17/V.21/V.27ter/V.29 modem signal generation and demodulation, error correction mode (ECM) handling, and UDP/TCP transport layer adaptation. No host CPU involvement is required during fax transmission or reception.
PEF 3304 E V2.1-G 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 3304 E V2.1-G FAQ
1.How can I place an order for PEF 3304 E V2.1-G through Aetrix?
Please submit a Request for Quotation (RFQ) for PEF 3304 E V2.1-G 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 3304 E V2.1-G reliable?
The price and inventory of PEF 3304 E V2.1-G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PEF 3304 E V2.1-G is usually 5 days.
3.What payment methods are accepted for PEF 3304 E V2.1-G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEF 3304 E V2.1-G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEF 3304 E V2.1-G?
PEF 3304 E V2.1-G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEF 3304 E V2.1-G 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 3304 E V2.1-G?
For technical support, including PEF 3304 E V2.1-G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEF 3304 E V2.1-G requirements.
6.How does Aetrix verify that PEF 3304 E V2.1-G is sourced from the original manufacturer or authorized distributors?
All PEF 3304 E V2.1-G 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 3304 E V2.1-G meets industry standards.
7.What is the process for return or replacement of PEF 3304 E V2.1-G?
All PEF 3304 E V2.1-G units undergo pre-shipment inspection (PSI). If there is an issue with PEF 3304 E V2.1-G, 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 3304 E V2.1-G part is unused and in its original packaging.
Return procedure for PEF 3304 E V2.1-G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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