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Renesas 82P2917ABBG
- Part No.:
- 82P2917ABBG
- Manufacturer:
- Renesas
- Category:
- Telecom
- Package:
- 416-BGA
- Datasheet:
-
82P2917ABBG.pdf
- Description:
- PBGA 27.00X27.00X2.23 MM, 1.00MM
- Quantity:
- Payment:
- Shipping:
Inventory:2,047
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Product details
Overview
82P2917ABBG from Integrated Device Technology is a 17-channel T1/E1/J1 line interface unit (LIU) designed for high-density telecom access equipment. It integrates full receive and transmit signal conditioning, clock recovery, jitter attenuation, and diagnostic functions per channel, supporting 1.544 Mbps (T1), 2.048 Mbps (E1), and 1.544 Mbps (J1) framing with programmable waveform shaping and dual-loopback capability. It operates in industrial temperature range and targets central office line cards and multi-service access platforms.
For engineers reviewing the 82P2917ABBG datasheet, 82P2917ABBG pinout, 82P2917ABBG application, or 82P2917ABBG equivalent, key selection criteria include per-channel T1/E1/J1 mode configurability, integrated RJA/TJA jitter attenuation, differential/single-ended line interface flexibility, on-chip PRBS/QRSS pattern generation/detection, and support for Hitless Protection Switching (HPS) in carrier-grade systems.
Technical Context
The 82P2917ABBG implements independent receive and transmit paths per channel, each with adaptive equalization, slicer-based signal regeneration, and encoder/decoder logic compliant with T1 (ANSI T1.107), E1 (ETSI EN 300 233), and J1 (Japanese ARIB STD-B24) standards. Its jitter attenuator provides both receive (RJA) and transmit (TJA) jitter cleaning with programmable bandwidth and holdover modes.
It supports multiple microprocessor interfaces - serial, parallel Motorola/Intel non-multiplexed and multiplexed - and includes JTAG boundary scan, comprehensive interrupt reporting, and per-channel software reset. The device uses a 416-pin PBGA package and requires separate 3.3 V and 1.8 V supplies for I/O and core logic respectively.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 17 independent T1/E1/J1 line interfaces in single IC |
| Data Rate Support | 1.544 Mbps (T1/J1) and 2.048 Mbps (E1); no rate adaptation - fixed per-channel mode selection |
| Jitter Attenuation | Receive Jitter Attenuator (RJA) and Transmit Jitter Attenuator (TJA) with programmable loop bandwidth |
| Line Interface Modes | Differential (75 Ω or 120 Ω) and single-ended configurations supported per channel with impedance matching control |
| Diagnostic Functions | Per-channel BPV/CV detection & insertion, EXZ, LOS (LLOS/SLOS/TLOS), AIS detection/generation, PRBS/QRSS/ARB/IB pattern gen/detect |
| Power Supply | 3.3 V ±5 % for I/O, 1.8 V ±5 % for core; typical total power dissipation = 3.2 W at full operation |
| Operating Temperature | –40 °C to +85 °C ambient; qualified for industrial-grade telecom infrastructure deployment |
Pinout & Package
82P2917ABBG is housed in a 416-pin plastic ball grid array (PBGA) package with 1.0 mm pitch, thermally enhanced construction for telecom line card thermal management. Pin assignments follow a defined functional grouping across four sides, including dedicated differential line pairs (TTIP/TRING, RTIP/RRING), clock inputs (MCLK, XCLK, CLKA/CLKB), reference outputs (REFA/REFB, CLKT1/CLKE1), microprocessor interface bus (address/data/control), JTAG, and power/ground balls.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TTIP / TRING | Differential Transmit Output Pair | Drives transformer-coupled T1/E1/J1 line; supports programmable amplitude and pulse shaping per channel |
| RTIP / RRING | Differential Receive Input Pair | Accepts line signals with adaptive equalization; configurable for 75 Ω or 120 Ω termination |
| REFA / REFB | Reference Clock Outputs | Provide recovered or synthesized clocks (E1/T1 rates); configurable as free-run, recovered, or externally driven |
| MCLK | Master Clock Input | Provides system timing reference for internal logic; required for microprocessor interface and register access |
| JTAG_TCK / TMS / TDI / TDO | Boundary Scan Test Interface | Enables IEEE 1149.1 compliance for production test and in-system debug |
Key Features
| Feature | Design Value |
|---|---|
| Hitless Protection Switching (HPS) | Enables seamless switchover between primary and backup line interfaces without service interruption - critical for carrier-class SLA compliance |
| User-Programmable Waveform Shaping | Allows fine-tuning of transmit pulse templates per channel for cable length (0–655 ft T1, 75/120 Ω E1) and regulatory compliance (FCC Part 15, ETSI) |
| Per-Channel Diagnostic Engine | Real-time BPV, EXZ, LOS, AIS monitoring with error counters and interrupt flags - eliminates need for external test logic per channel |
| Dual Loopback Modes | Supports analog, digital, remote, and dual loopback simultaneously - accelerates field diagnostics and integration validation |
| G.772 Jitter Monitoring | On-chip jitter measurement (JM) engine per channel meets ITU-T G.772 for in-service performance verification without external instrumentation |
Applications
| DSLAM Line Card | Multi-Service Access Router |
|---|---|
|
Use Scenario: Aggregating 17 T1/E1 lines from customer premises into a DSLAM backplane. IC Role / Device Role / Timing Role: Line interface unit providing physical layer signal conditioning, clock recovery, and framing alignment for each T1/E1 port. Use Value: Enables single-chip support for 17 ports in compact 416-ball PBGA, reducing PCB area by >40% vs. discrete LIU solutions while maintaining G.772-compliant jitter monitoring. |
Use Scenario: Serving mixed T1/E1/J1 connectivity in enterprise edge routers with carrier-grade uptime requirements. IC Role / Device Role / Timing Role: High-density LIU managing simultaneous T1, E1, and J1 line protocols with per-channel mode selection and HPS failover. Use Value: Eliminates need for separate protocol-specific LIUs; HPS ensures sub-50 ms switchover during fiber cut events per ITU-T G.841. |
| Central Office Digital Cross-Connect | Wireless Backhaul Baseband Unit |
|
Use Scenario: Interfacing legacy TDM traffic from PSTN switches into IP/MPLS transport networks. IC Role / Device Role / Timing Role: Physical layer bridge converting E1/T1 line signals to synchronous parallel data for framer/FPGA ingestion. Use Value: Provides deterministic CLKE1/CLKT1 clock outputs synchronized to recovered line timing - essential for low-jitter TDM-to-packet conversion. |
Use Scenario: Supporting E1-based microwave radio links in remote cell sites with limited board space and thermal headroom. IC Role / Device Role / Timing Role: Low-power, thermally optimized LIU delivering E1 physical layer interface with integrated diagnostics and PRBS testing. Use Value: Reduces external test equipment dependency via on-chip QRSS/PRBS generation/detection - cuts field commissioning time by ~30%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar line interface unit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX5865 | 16-channel E1-only LIU; no T1/J1 support; lacks integrated jitter attenuator and HPS | Suitable for E1-only metro aggregation where T1/J1 interoperability is unnecessary | Select when only E1 compliance is required and jitter attenuation is handled externally |
| TI CDCE72010 | Not an LIU - clock jitter cleaner only; requires external line drivers/receivers and framing logic | Used as companion to discrete LIUs for enhanced clock clean-up, not as standalone replacement | Choose only as add-on jitter reduction stage, not as functional substitute for 82P2917ABBG |
Compared with MAX5865 and CDCE72010, the 82P2917ABBG uniquely delivers integrated 17-channel T1/E1/J1 line interface functionality with on-die RJA/TJA, HPS, and full diagnostic engines - enabling single-chip implementation of carrier-grade access line cards without external signal conditioning or protection logic.
Availability
82P2917ABBG is available at Aetrix Electronics and suitable for DSLAM line cards, multi-service access routers, central office digital cross-connect systems, wireless backhaul baseband units, and telecom infrastructure requiring stable component supply across extended product lifecycles.
Supply support for 82P2917ABBG 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
Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and high-performance interconnect solutions for communications and computing markets.
The IDT82P2917A family was engineered specifically for high-density T1/E1/J1 line interface applications in carrier-class access equipment, emphasizing integration, diagnostics, and carrier-grade reliability over cost-optimized consumer-grade alternatives.
FAQ
What is the primary function of the 82P2917ABBG in telecom systems?
The 82P2917ABBG serves as a 17-channel line interface unit (LIU) that conditions, recovers timing from, and transmits T1/E1/J1 signals in telecom access equipment. It handles physical layer tasks including equalization, clock recovery, jitter attenuation, framing alignment, and diagnostics - eliminating the need for discrete driver/receiver components per channel. Its integration reduces board space and improves signal integrity in DSLAMs and MSANs.
Does the 82P2917ABBG support both T1 and E1 protocols simultaneously?
Yes, the 82P2917ABBG supports per-channel configuration for T1, E1, or J1 operation via hardware pins and register settings. Each of its 17 channels can be independently set to one of these modes using MODE[1:0] and associated control bits. This enables mixed-protocol line cards without redesign - for example, eight E1 and nine T1 ports on a single 82P2917ABBG-based board.
How does the 82P2917ABBG implement jitter attenuation?
The 82P2917ABBG incorporates two dedicated jitter attenuators: a Receive Jitter Attenuator (RJA) and a Transmit Jitter Attenuator (TJA). Both use PLL-based architectures with programmable loop bandwidths to suppress incoming jitter (RJA) and clean up transmit clock edges (TJA). Performance meets ITU-T G.823/G.824 for plesiochronous network interfaces, with measured output jitter < 0.2 UI peak-to-peak under specified input conditions.
What diagnostic capabilities does the 82P2917ABBG provide per channel?
The 82P2917ABBG delivers comprehensive per-channel diagnostics including Bipolar Violation (BPV) and Code Violation (CV) detection/insertion, Excessive Zeroes (EXZ) monitoring, Loss of Signal (LOS) classification (LLOS/SLOS/TLOS), Alarm Indication Signal (AIS) handling, and PRBS/QRSS/ARB/IB pattern generation and detection. All are accessible via dedicated status registers and generate interrupt flags for real-time monitoring without host CPU polling overhead.
Is the 82P2917ABBG pin-compatible with earlier IDT LIUs like the 82P2916?
No, the 82P2917ABBG is not pin-compatible with the 82P2916. It uses a 416-ball PBGA package versus the 82P2916's 352-ball variant, with reorganized power/ground ball placement, expanded microprocessor interface bus width, and additional JTAG and clock routing. Migration requires PCB layout revision and firmware updates due to differences in register map and interrupt structure.
82P2917ABBG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 416-BGA
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Line Interface Unit (LIU)
- Interface:
- E1, J1, T1
- Number of Circuits:
- 17
- Voltage - Supply:
- 1.71V ~ 1.89V, 3.13V ~ 3.47V
- Current - Supply:
- -
- Power (Watts):
- 1.78 W
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 416-PBGA (27x27)
82P2917ABBG FAQ
1.How can I place an order for 82P2917ABBG through Aetrix?
Please submit a Request for Quotation (RFQ) for 82P2917ABBG 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 82P2917ABBG reliable?
The price and inventory of 82P2917ABBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 82P2917ABBG is usually 5 days.
3.What payment methods are accepted for 82P2917ABBG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 82P2917ABBG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 82P2917ABBG?
82P2917ABBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 82P2917ABBG 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 82P2917ABBG?
For technical support, including 82P2917ABBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 82P2917ABBG requirements.
6.How does Aetrix verify that 82P2917ABBG is sourced from the original manufacturer or authorized distributors?
All 82P2917ABBG 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 82P2917ABBG meets industry standards.
7.What is the process for return or replacement of 82P2917ABBG?
All 82P2917ABBG units undergo pre-shipment inspection (PSI). If there is an issue with 82P2917ABBG, 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 82P2917ABBG part is unused and in its original packaging.
Return procedure for 82P2917ABBG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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