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Infineon Technologies PEB3331HTV2.1
- Part No.:
- PEB3331HTV2.1
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 100-LQFP
- Datasheet:
-
PEB3331HTV2.1.pdf
- Description:
- TELEPHONY INTERFACE CIRCUIT
- Quantity:
- Payment:
- Shipping:
Inventory:1,693
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Product details
Overview
PEB3331HTV2.1 from Infineon Technologies is a single-channel VoIP processor for Customer Premises Equipment, integrating G.711/G.726/G.723.1/G.729A/B/E/iLBC codec support, T.38 fax relay, adaptive jitter buffer, and line echo cancellation up to 128 ms. It interfaces with external SLIC-DC V1.2 or SLIC-E V2.1 and targets analog telephone adapters (ATA) in xDSL gateways and SOHO IP PBX systems.
For engineers reviewing the PEB3331HTV2.1 datasheet, PEB3331HTV2.1 pinout, PEB3331HTV2.1 application, or PEB3331HTV2.1 equivalent, key selection criteria include PCM interface compatibility, SLIC co-design requirements, T.38 fax relay capability, and software compatibility within the VINETIC®-CPE family.
Technical Context
The PEB3331HTV2.1 implements a dedicated VoIP processing engine with hardware-accelerated voice coding/decoding across six standardized algorithms and full T.38 fax relay functionality. Its PCM interface supports 8-bit μ-law/A-law and 16-bit linear formats at 8 kHz sampling rate.
It relies on external SLIC circuitry for analog line interface functions-ringing generation, DC feed, and current sensing-and requires host controller coordination for DTMF detection, caller ID signaling, and AGC control via firmware-managed registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| G.729A/B/E Support | Hardware-accelerated dual-channel decode and single-channel encode; enables low-bitrate VoIP with sub-15ms algorithmic delay. |
| T.38 Fax Relay | Full real-time fax over IP relay compliant with ITU-T T.38 Annex A/B; eliminates modem passthrough dependency. |
| Line Echo Cancellation | Up to 128 ms tail length using window-based adaptive filter; meets ITU-T G.168 compliance for hybrid echo suppression. |
| Jitter Buffer | Adaptive buffer with dynamic depth adjustment; maintains voice continuity under packet delay variation up to ±50 ms. |
| PCM Interface | Synchronous serial interface supporting 8/16-bit data, μ-law/A-law companding, and master/slave clocking modes. |
| DTMF & CID | Integrated receive/send generation and detection logic; supports ETSI EN 300 659-1 and Bellcore TR-NWT-000005 standards. |
Pinout & Package
PEB3331HTV2.1 is housed in a PG-TQFP-64 package (10 mm × 10 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad. Pin assignment follows VINETIC®-CPE family layout for software-compatible footprint sharing with PEB3332 and PEF3331 variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PCM_CLK | PCM Interface Clock | Master or slave synchronous clock input/output; determines bit-rate timing for 8/16-bit PCM frame transfers. |
| PCM_FS | PCM Frame Sync | Left/right channel framing signal; active-low edge initiates new PCM sample pair transfer. |
| PCM_DI | PCM Data Input | Serial PCM data input from host or CODEC; supports μ-law, A-law, or linear format per configuration register. |
| PCM_DO | PCM Data Output | Serial PCM data output to host or external DAC; synchronized to PCM_CLK and PCM_FS. |
| SLIC_CS | SLIC Chip Select | Active-low enable for SPI-based control of external SLIC-DC V1.2 or SLIC-E V2.1 devices. |
| INT | Interrupt Output | Open-drain interrupt signal indicating event completion (e.g., DTMF detected, fax relay ready, echo convergence). |
Key Features
| Feature | Design Value |
|---|---|
| Multi-codec Hardware Acceleration | Dedicated DSP resources execute G.729A/B/E, G.723.1, iLBC, and G.711/G.726 without host CPU load - enabling headless operation in resource-constrained ATAs. |
| T.38 Fax Relay Engine | Fully embedded T.38 Annex A/B relay with real-time packet retransmission, redundancy, and demodulation bypass - eliminating need for external fax DSP or modem ICs. |
| Adaptive Line Echo Cancellation | Configurable 64–128 ms echo tail with automatic convergence tracking; sustains full-duplex clarity on long-loop analog lines with >40 dB return loss. |
| SLIC Interface Compatibility | Standardized SPI-based control protocol for SLIC-DC V1.2 and SLIC-E V2.1; enables drop-in replacement of SLIC components without firmware changes. |
Applications
| VoIP Analog Telephone Adapter (ATA) | xDSL Home Gateway |
|---|---|
Use Scenario: Standalone device converting PSTN analog phone signals to SIP/RTP packets over broadband Ethernet. IC Role / Device Role / Timing Role: Central VoIP processing unit handling codec execution, packetization, jitter compensation, and DTMF/CID signaling. Use Value: Enables carrier-grade voice quality with <15 ms algorithmic delay and T.38 fax interoperability - critical for business-class ATA certification. | Use Scenario: Integrated voice gateway combining ADSL2+/VDSL2 modem, routing, Wi-Fi, and two FXS ports for home telephony. IC Role / Device Role / Timing Role: Dual-channel voice processing engine managing independent PCM streams for each FXS port while sharing memory and firmware resources. Use Value: Reduces BOM count by consolidating codec, echo cancellation, and fax relay into one IC - simplifying layout and lowering system power vs. discrete DSP + CODEC solutions. |
| SOHO IP PBX | VoIP DECT Base Station |
Use Scenario: Small-office PBX supporting up to 8 extensions, call routing, voicemail, and PSTN failover via analog trunk. IC Role / Device Role / Timing Role: Primary voice processing node for analog trunk interface, performing echo cancellation, compression, and T.38 relay during PSTN fallback. Use Value: Maintains fax and modem compatibility during failover mode - ensuring uninterrupted fax delivery even when SIP registration drops. | Use Scenario: Cordless base station connecting DECT handsets to VoIP network via Ethernet or Wi-Fi, with integrated analog line interface. IC Role / Device Role / Timing Role: Voice front-end processor handling analog line termination, voice coding, and real-time echo cancellation between DECT air interface and PSTN line. Use Value: Achieves <30 ms end-to-end latency from handset mic to PSTN earpiece - meeting DECT ETSI TS 102 527-1 real-time performance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar VoIP processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PEB3332HTV2.1 | Two-channel version with identical feature set, larger PG-TQFP-100 package, and dual PCM interfaces. | Required for dual-FXS ATA or gateway designs needing simultaneous analog line handling. | Select when dual-channel voice processing is mandatory; shares same firmware and driver stack. |
| PEF3331HTV2.1 | Pin-compatible variant with identical functionality but different marking and traceability; manufactured in alternate fab line. | No functional difference; used for supply chain diversification or lot-specific qualification. | Select for second-source assurance without design change or requalification effort. |
Compared with PEB3331HTV2.1, PEB3332HTV2.1 doubles channel count at higher pin count and power, while PEF3331HTV2.1 offers identical performance with alternate manufacturing traceability - making the former ideal for scalability and the latter for supply resilience.
Availability
PEB3331HTV2.1 is available at Aetrix Electronics and suitable for VoIP analog telephone adapters, xDSL home gateways, and SOHO IP PBX systems requiring stable component supply, long-lifecycle support, and firmware-maintained compatibility within the VINETIC®-CPE family.
Supply support for PEB3331HTV2.1 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 and manufacturing infrastructure.
The VINETIC®-CPE product line was engineered specifically for cost-optimized, high-integration VoIP endpoints in customer premises equipment - emphasizing software compatibility, SLIC interoperability, and certified voice/fax performance.
FAQ
Is PEB3331HTV2.1 pin-compatible with other VINETIC®-CPE devices?
Yes, PEB3331HTV2.1 shares the same PG-TQFP-64 footprint and pin mapping with PEF3331HTV2.1, enabling direct substitution without PCB redesign. It is not pin-compatible with PEB3332HTV2.1 (PG-TQFP-100) or PLUS-series devices (PG-LBGA-144), though all share software compatibility.
Does PEB3331HTV2.1 include an integrated SLIC?
No, PEB3331HTV2.1 does not integrate a SLIC. It requires external SLIC-DC V1.2 or SLIC-E V2.1 devices connected via SPI for analog line interface functions including ringing, battery feed, and loop supervision.
What operating systems are supported by the PEB3331HTV2.1 driver stack?
Infineon provides production-ready drivers for Linux and VxWorks, both built on an OS-independent abstraction layer. The driver architecture allows straightforward porting to other real-time OSes such as FreeRTOS or ThreadX using documented HAL interfaces.
Can PEB3331HTV2.1 perform simultaneous G.729 encode and decode?
No - PEB3331HTV2.1 supports either G.729A/B/E encoding or decoding per channel, not concurrent bidirectional operation on the same stream. Dual-channel operation allows one channel to encode while the other decodes, satisfying full-duplex requirements in ATA use cases.
PEB3331HTV2.1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- VINETIC®
- Package/Case:
- 100-LQFP
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Analog Voice Access
- Interface:
- Parallel, PCM, Serial
- Number of Circuits:
- 1
- Voltage - Supply:
- -
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TQFP-100
PEB3331HTV2.1 FAQ
1.How can I place an order for PEB3331HTV2.1 through Aetrix?
Please submit a Request for Quotation (RFQ) for PEB3331HTV2.1 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 PEB3331HTV2.1 reliable?
The price and inventory of PEB3331HTV2.1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PEB3331HTV2.1 is usually 5 days.
3.What payment methods are accepted for PEB3331HTV2.1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEB3331HTV2.1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PEB3331HTV2.1?
PEB3331HTV2.1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PEB3331HTV2.1 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 PEB3331HTV2.1?
For technical support, including PEB3331HTV2.1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEB3331HTV2.1 requirements.
6.How does Aetrix verify that PEB3331HTV2.1 is sourced from the original manufacturer or authorized distributors?
All PEB3331HTV2.1 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 PEB3331HTV2.1 meets industry standards.
7.What is the process for return or replacement of PEB3331HTV2.1?
All PEB3331HTV2.1 units undergo pre-shipment inspection (PSI). If there is an issue with PEB3331HTV2.1, 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 PEB3331HTV2.1 part is unused and in its original packaging.
Return procedure for PEB3331HTV2.1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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