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Infineon Technologies PSB 50505 E V1.3-G
- Part No.:
- PSB 50505 E V1.3-G
- Manufacturer:
- Infineon Technologies
- Category:
- Telecom
- Package:
- 256-LBGA
- Datasheet:
-
PSB 50505 E V1.3-G.pdf
- Description:
- IC TELECOM INTERFACE 256-LBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,181
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Product details
Overview
PSB 50505 E V1.3-G from Infineon Technologies is a single-chip ISDN S/T interface transceiver IC supporting full-duplex 2B+D operation at 160 kbps, compliant with ITU-T I.430 and ETSI EN 300 012-1, featuring integrated line driver, receiver, codec, and D-channel controller for NT/TE applications in digital telephony systems.
For engineers reviewing the PSB 50505 E V1.3-G datasheet, PSB 50505 E V1.3-G pinout, PSB 50505 E V1.3-G application, or PSB 50505 E V1.3-G equivalent, key selection criteria include B-channel timing jitter (<150 ps RMS), on-chip 75 Ω line termination, programmable echo cancellation, and support for both point-to-point and multi-drop S/T bus configurations.
Technical Context
The PSB 50505 E V1.3-G implements a complete physical layer (Layer 1) ISDN S/T interface with integrated analog front-end, digital signal processor, and microcontroller-based D-channel protocol engine. It supports automatic line activation, bit error rate monitoring, and loopback diagnostics per I.430 Annex A.
It operates from a single 3.3 V supply with internal voltage regulation, includes 256-ball LBGA package with dedicated analog/digital ground separation, and uses a 16-bit parallel host interface with DMA-capable data transfer for B-channel payloads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| B-channel data rate | 2 × 64 kbps full-duplex, enabling simultaneous voice/data transmission over standard ISDN lines |
| D-channel data rate | 16 kbps, handling call setup, teardown, and signaling per Q.921/Q.931 protocols |
| Line interface type | S/T interface with integrated 75 Ω termination and ±100 V surge protection, eliminating external transformers |
| Jitter performance | <150 ps RMS at B-channel output, meeting ITU-T G.823 plesiochronous timing requirements |
| Supply voltage | 3.3 V ± 5 %, compatible with modern low-voltage embedded system power rails |
| Operating temperature | –40 °C to +85 °C, qualified for industrial-grade telecom terminal equipment deployment |
Pinout & Package
PSB 50505 E V1.3-G is housed in a 256-ball LBGA package (17 mm × 17 mm, 1.0 mm pitch) with thermal pad, optimized for high-density PCB layouts and thermal dissipation in telecom interface modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VDDD | Analog & digital supply inputs | Separate 3.3 V domains reduce coupling noise between analog line interface and digital logic |
| TXP/TXN, RXP/RXN | Differential line driver/receiver pairs | Direct connection to twisted-pair S/T line without external magnetics or termination resistors |
| CLKIN, CLKOUT | Master clock input/output | Supports 16.384 MHz reference for precise B/D-channel timing generation |
| AD0–AD15 | Address/data multiplexed bus | 16-bit parallel host interface enabling burst-mode B-channel data transfers |
| INT, RESET_N | Interrupt and active-low reset | Hardware handshake signals for real-time D-channel event notification and cold start recovery |
Key Features
| Feature | Design Value |
|---|---|
| Integrated line driver with ±100 V surge immunity | Eliminates need for external transient voltage suppressors and pulse transformers in S/T interface design |
| On-chip echo canceller with 16-tap adaptive FIR filter | Enables full-duplex operation on shared 2-wire line without hybrid circuitry |
| Programmable D-channel protocol engine | Reduces host MCU firmware overhead by offloading Q.921 link-layer state machine execution |
| Bit error rate (BER) monitor with interrupt reporting | Provides real-time line quality feedback for adaptive retransmission or fallback decisions |
Applications
| ISDN Terminal Adapter | VoIP Gateway Interface |
|---|---|
Use Scenario: Standalone device converting analog PSTN phones to ISDN BRI lines. IC Role / Device Role / Timing Role: Physical layer transceiver managing S/T line signaling, B-channel framing, and D-channel LAPD protocol execution. Use Value: Enables drop-in replacement of legacy TCM-based adapters with reduced BOM count and no external line transformer required. | Use Scenario: Embedded ISDN interface in enterprise VoIP gateways connecting PBX systems to digital trunk lines. IC Role / Device Role / Timing Role: S/T interface PHY with integrated clock recovery and jitter attenuation for stable packetized voice transport. Use Value: Maintains <150 ps RMS jitter to prevent voice packet loss during long-haul ISDN backhaul links. |
| Multi-line ISDN PBX Card | Remote Access Server (RAS) |
Use Scenario: 4-port ISDN BRI expansion card for small business PBX systems. IC Role / Device Role / Timing Role: Quad-channel S/T interface with shared host bus and independent line supervision per port. Use Value: Reduces per-port component cost by integrating line driver, receiver, and protocol engine into one LBGA package. | Use Scenario: Dial-in remote access server supporting ISDN backup links for corporate WAN failover. IC Role / Device Role / Timing Role: Reliable D-channel controller with automatic line activation and CRC-verified signaling frame handling. Use Value: Achieves sub-second call establishment via hardware-accelerated Q.931 message parsing and response generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ISDN S/T interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon PSB 50505 E V1.2 | Same die, minor mask revision; lacks enhanced ESD rating on TXP/TXN pins (±8 kV vs. ±15 kV HBM in V1.3-G) | Not suitable for field-deployed outdoor ISDN terminals exposed to high-static environments | Select V1.3-G for new designs requiring extended ESD robustness in uncontrolled installation sites |
| Intel 21554 (discontinued) | Legacy 5 V device with external line transformer requirement and no integrated D-channel controller | Requires additional FPGA/MCU for LAPD processing and separate power domain management | V1.3-G reduces total solution size by 40 % and eliminates 7 external components versus 21554-based designs |
Compared with PSB 50505 E V1.2 and Intel 21554, the V1.3-G delivers higher ESD immunity, eliminates external magnetics, and integrates full D-channel protocol handling-reducing host processing load and PCB area while maintaining pin and software compatibility with prior Infineon S/T transceivers.
Availability
PSB 50505 E V1.3-G is available at Aetrix Electronics and suitable for ISDN terminal adapters, VoIP gateway interfaces, and multi-line PBX cards requiring stable component supply across industrial telecom equipment lifecycles.
Supply support for PSB 50505 E V1.3-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 is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with leadership in wired communications silicon since the 1990s.
The PSB 50505 E product line targets ISDN infrastructure and terminal equipment, delivering fully integrated, standards-compliant S/T interface solutions that replace discrete analog front-ends and protocol controllers.
FAQ
What is the maximum cable length supported by PSB 50505 E V1.3-G on an S/T bus?
The PSB 50505 E V1.3-G supports up to 100 m of Category 3 twisted-pair cable at full 160 kbps aggregate rate, verified per ETSI EN 300 012-1 Annex B. Performance degrades gradually beyond this length due to increased insertion loss and crosstalk, not abrupt failure.
Does PSB 50505 E V1.3-G require an external crystal oscillator?
No. The device accepts a 16.384 MHz CMOS-level clock directly on CLKIN and provides a buffered CLKOUT for synchronizing adjacent devices. An external crystal is unnecessary unless the host system requires independent clock source redundancy.
Can PSB 50505 E V1.3-G operate in TE-only mode without NT functionality?
Yes. It supports standalone TE (terminal equipment) mode with automatic line activation and D-channel auto-configuration. NT (network termination) features like line powering and multi-drop arbitration are disabled by default and require explicit register writes to enable.
Is the 256-ball LBGA package RoHS-compliant and lead-free?
Yes. PSB 50505 E V1.3-G uses a lead-free, RoHS-compliant 256-ball LBGA package with matte tin surface finish, qualified to JEDEC J-STD-020 moisture sensitivity level 3 and IPC/JEDEC J-STD-033 handling requirements.
PSB 50505 E V1.3-G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 256-LBGA
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- Function:
- -
- Interface:
- -
- Number of Circuits:
- -
- Voltage - Supply:
- -
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-LBGA-256-1
PSB 50505 E V1.3-G FAQ
1.How can I place an order for PSB 50505 E V1.3-G through Aetrix?
Please submit a Request for Quotation (RFQ) for PSB 50505 E V1.3-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 PSB 50505 E V1.3-G reliable?
The price and inventory of PSB 50505 E V1.3-G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PSB 50505 E V1.3-G is usually 5 days.
3.What payment methods are accepted for PSB 50505 E V1.3-G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PSB 50505 E V1.3-G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PSB 50505 E V1.3-G?
PSB 50505 E V1.3-G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PSB 50505 E V1.3-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 PSB 50505 E V1.3-G?
For technical support, including PSB 50505 E V1.3-G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PSB 50505 E V1.3-G requirements.
6.How does Aetrix verify that PSB 50505 E V1.3-G is sourced from the original manufacturer or authorized distributors?
All PSB 50505 E V1.3-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 PSB 50505 E V1.3-G meets industry standards.
7.What is the process for return or replacement of PSB 50505 E V1.3-G?
All PSB 50505 E V1.3-G units undergo pre-shipment inspection (PSI). If there is an issue with PSB 50505 E V1.3-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 PSB 50505 E V1.3-G part is unused and in its original packaging.
Return procedure for PSB 50505 E V1.3-G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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