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Renesas 82P20416DBFG8
- Part No.:
- 82P20416DBFG8
- Manufacturer:
- Renesas
- Category:
- Telecom
- Package:
- 484-LFBGA
- Datasheet:
-
82P20416DBFG8.pdf
- Description:
- IC TELECOM INTERFACE 484BGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,492
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Product details
Overview
82P20416DBFG8 from Integrated Device Technology (IDT) is a 16-channel short-haul T1/E1/J1 line interface unit (LIU) designed for digital access multiplexers, channel banks, and integrated access devices. It integrates full receive and transmit paths per channel, jitter attenuation, diagnostic facilities, and programmable waveform shaping. Key confirmed parameters include 16 independent channels, E1/T1/J1 mode selection, ±10% input voltage tolerance, 1.8 V/3.3 V dual-supply operation, and support for up to 655 ft T1 cable length.
For engineers reviewing the 82P20416DBFG8 datasheet, 82P20416DBFG8 pinout, 82P20416DBFG8 application, or 82P20416DBFG8 equivalent, this device serves as a highly integrated, software-configurable LIU for carrier-grade short-haul line termination in telecom infrastructure where precise timing recovery, line diagnostics, and multi-standard compliance are required.
Technical Context
The 82P20416DBFG8 implements fully independent receive and transmit signal chains per channel, each with adaptive equalization, slicer-based clock/data recovery, and programmable encoder/decoder logic compliant with T1 (DSX-1), E1 (G.703), and J1 standards. It supports both transformer-coupled and transformerless differential line interfaces.
Jitter attenuation is performed via dedicated RJA (receive) and TJA (transmit) blocks with configurable bandwidths; diagnostic functions include BPV/CV detection, EXZ monitoring, LOS (LLOS/SLOS/TLOS), AIS handling, PRBS/QRSS/ARB pattern generation/detection, and per-channel error counting with automatic/manual update modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 16 independent T1/E1/J1 line interface channels with per-channel configuration registers. |
| Line Standards | Fully compliant with T1 (ANSI T1.102), E1 (ITU-T G.703), and J1 (Japanese standard) physical layer specifications. |
| Max Cable Length | Supports T1 up to 655 ft (200 m) and E1 up to 400 m over 75 Ω or 120 Ω coaxial/twisted-pair media. |
| Supply Voltages | 1.8 V core and 3.3 V I/O supplies - enables low-power operation while maintaining interface compatibility with legacy system logic. |
| Jitter Attenuation | Receive Jitter Attenuator (RJA) and Transmit Jitter Attenuator (TJA) with programmable corner frequencies for clean clock regeneration. |
| Diagnostic Coverage | Integrated BPV/CV, EXZ, LOS (LLOS/SLOS/TLOS), AIS, PRBS/QRSS/ARB pattern gen/detect, and per-channel error counters. |
| Interface Protocol | Serial microprocessor interface (SPI-compatible) and IEEE 1149.1 JTAG for programming, debug, and boundary scan. |
Pinout & Package
This device is packaged in a 484-pin Fine-Pitch Ball Grid Array (FBGA) with 0.8 mm pitch and 23 mm × 23 mm body size. Pin assignment follows IDT's standardized BGA layout for high-density telecom ICs, with dedicated power/ground balls, differential line I/O pairs per channel, clock inputs (MCLK, XCLK), and control interfaces (SPI, JTAG).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TTIP[n]/TRING[n] | Transmit differential output pair (n = 0–15) | Drives balanced T1/E1/J1 line signals; supports programmable amplitude and waveform templates. |
| RTIP[n]/RRING[n] | Receive differential input pair (n = 0–15) | Accepts line signals with adaptive equalization and impedance matching (75 Ω or 120 Ω selectable). |
| MCLK | Master clock input | Provides system timing reference for internal PLLs and data path synchronization (up to 50 MHz). |
| XCLK | Internal reference clock input | Optional external crystal or oscillator input for jitter-sensitive applications requiring ultra-low phase noise. |
| CLKT1 / CLKE1 | Free-running clock outputs | Provides recovered T1 or E1 frame clocks for downstream timing distribution (programmable duty cycle). |
| SCLK / SDATA / SCEN | Serial microprocessor interface | 3-wire SPI-compatible bus for register read/write; supports daisy-chaining multiple devices. |
| TCK / TMS / TDI / TDO | JTAG test access port | Enables boundary scan, device ID readback, and in-system programming without dedicated debug hardware. |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel mode selection | Independent T1/E1/J1 configuration per channel via register bitfield - enables mixed-standard line cards without hardware changes. |
| User-programmable waveform shaping | Arbitrary waveform generator per channel allows custom pulse templates for nonstandard cabling or legacy equipment interoperability. |
| Hitless Protection Switching (HPS) support | Enables seamless switchover between primary/backup line interfaces during active traffic - critical for carrier-grade 99.999% uptime systems. |
| G.772-compliant monitoring | Real-time channel 0 monitoring of line performance metrics including jitter, BPV rate, and signal level - meets ITU-T O.150/G.772 requirements. |
| Dual-supply operation | Separate 1.8 V core and 3.3 V I/O domains reduce dynamic power by >30% vs. single-supply alternatives while preserving interface compatibility. |
Applications
| DSLAM Line Card | Enterprise PBX Gateway |
|---|---|
|
Use Scenario: Aggregating 16 T1 lines from remote DSLAM cabinets into a central office switch. IC Role / Device Role / Timing Role: Line interface unit providing physical layer termination, clock recovery, and jitter cleanup for each T1 span. Use Value: Enables deterministic frame alignment and eliminates accumulated jitter across cascaded repeaters - essential for VoIP payload integrity. |
Use Scenario: Connecting legacy T1/E1 trunks to IP-based enterprise PBX systems with SIP trunking. IC Role / Device Role / Timing Role: Physical layer bridge converting TDM signals to backplane-parallel or serial data for DSP/FPGA processing. Use Value: Reduces BOM count by integrating all 16 LIU functions into one package - lowers PCB area and thermal load vs. discrete solutions. |
| Mobile Backhaul Node | Remote Terminal Unit (RTU) |
|
Use Scenario: Providing E1 connectivity between cellular base stations and aggregation routers in rural deployments. IC Role / Device Role / Timing Role: Short-haul E1 line driver/receiver with built-in diagnostics for rapid fault isolation in unattended sites. Use Value: On-chip PRBS generation and error counting eliminate need for external test gear - cuts field maintenance time by ~40%. |
Use Scenario: Industrial SCADA RTUs requiring reliable T1 telemetry links to utility control centers. IC Role / Device Role / Timing Role: Robust line interface with LLOS/SLOS detection and AIS generation for alarm propagation over long cable runs. Use Value: Automatic AIS insertion on loss-of-signal ensures upstream network elements detect failures within <500 ms - meets IEC 61850-3 timing mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar line interface unit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1378A+ (Maxim Integrated) | 8-channel, single-supply (3.3 V only), no JTAG, limited diagnostic set (no PRBS/ARB), fixed waveform templates. | Suitable for cost-sensitive, lower-channel-count access nodes where full telecom diagnostics are not required. | Select when channel count ≤8 and jitter attenuation depth <12 dB is acceptable; verify LOS response time meets system SLA. |
| TI TLK2201BIRCP | Single-channel, supports SGMII/RGMII but lacks native T1/E1 framing; requires external framer; no integrated equalizer or BPV detection. | Targeted at packet-based backhaul where TDM over IP is handled externally - not a drop-in replacement. | Choose only if migrating to packetized transport; expect added FPGA logic and external clock clean-up circuitry. |
Compared with MAX1378A+ and TLK2201BIRCP, the 82P20416DBFG8 delivers higher integration (16 channels, dual-supply, full diagnostics), superior jitter attenuation, and native T1/E1/J1 compliance - making it optimal for carrier-class short-haul line cards where density, reliability, and standards conformance are mandatory.
Availability
82P20416DBFG8 is available at Aetrix Electronics and suitable for digital access multiplexers, channel banks, and integrated access devices requiring stable component supply, long-term lifecycle support, and traceable sourcing for telecom infrastructure programs.
Supply support for 82P20416DBFG8 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, Inc. (IDT) was a fabless semiconductor company specializing in timing, memory interface, RF, and high-performance interconnect solutions before its acquisition by Renesas Electronics in 2019.
The IDT82P20416 product line was engineered specifically for carrier-grade short-haul T1/E1/J1 line termination in digital loop carrier systems, emphasizing low-jitter clock recovery, comprehensive diagnostics, and software-defined flexibility.
FAQ
What is the maximum supported cable length for T1 operation with the 82P20416DBFG8?
The 82P20416DBFG8 supports T1 operation up to 655 ft (200 m) using programmable waveform templates optimized for specific cable lengths - verified per ANSI T1.102 Annex A. This capability is enabled by its user-programmable arbitrary waveform shaper and adaptive equalizer, allowing precise compensation for line loss and distortion across varying installation conditions.
Does the 82P20416DBFG8 support both 75 Ω and 120 Ω line impedances?
Yes, the 82P20416DBFG8 supports both 75 Ω and 120 Ω line impedances in both transmit and receive differential modes. Impedance matching is configured per channel via register settings, and corresponding values are specified in Tables 2 and 15 of the datasheet - enabling deployment in mixed-coaxial (75 Ω) and twisted-pair (120 Ω) environments without hardware modification.
How does the 82P20416DBFG8 handle loss-of-signal detection?
The 82P20416DBFG8 implements three distinct LOS detection mechanisms: Line LOS (LLOS) monitors analog receive signal level, System LOS (SLOS) validates decoded frame sync, and Transmit LOS (TLOS) checks output driver activity. Each triggers configurable interrupts and can generate AIS signals - meeting ITU-T G.704 and ANSI T1.102 alarm propagation requirements.
Can the 82P20416DBFG8 perform jitter attenuation on both receive and transmit paths?
Yes, the 82P20416DBFG8 includes dedicated Receive Jitter Attenuator (RJA) and Transmit Jitter Attenuator (TJA) blocks with independently programmable bandwidths. These circuits suppress low-frequency wander and high-frequency jitter to meet GR-499-CORE and ITU-T G.823/G.824 mask compliance for T1/E1 applications - confirmed in Section 3.4 and Table 8.12 of the datasheet.
Is JTAG support available on the 82P20416DBFG8 for boundary scan and programming?
Yes, the 82P20416DBFG8 includes full IEEE 1149.1 JTAG support with TCK/TMS/TDI/TDO pins, a 32-bit Device Identification Register (IDR), and Boundary Scan Register (BSR). This enables in-system programming, manufacturing test, and real-time debug without requiring additional test fixtures - documented in Chapter 6 of the datasheet.
82P20416DBFG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 484-LFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Line Interface Unit (LIU)
- Interface:
- E1, J1, T1
- Number of Circuits:
- 16
- Voltage - Supply:
- 1.8V, 3.3V
- Current - Supply:
- -
- Power (Watts):
- 3.1 W
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 484-CABGA (19x19)
82P20416DBFG8 FAQ
1.How can I place an order for 82P20416DBFG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 82P20416DBFG8 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 82P20416DBFG8 reliable?
The price and inventory of 82P20416DBFG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 82P20416DBFG8 is usually 5 days.
3.What payment methods are accepted for 82P20416DBFG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 82P20416DBFG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 82P20416DBFG8?
82P20416DBFG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 82P20416DBFG8 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 82P20416DBFG8?
For technical support, including 82P20416DBFG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 82P20416DBFG8 requirements.
6.How does Aetrix verify that 82P20416DBFG8 is sourced from the original manufacturer or authorized distributors?
All 82P20416DBFG8 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 82P20416DBFG8 meets industry standards.
7.What is the process for return or replacement of 82P20416DBFG8?
All 82P20416DBFG8 units undergo pre-shipment inspection (PSI). If there is an issue with 82P20416DBFG8, 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 82P20416DBFG8 part is unused and in its original packaging.
Return procedure for 82P20416DBFG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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