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Renesas 82V2082BFG8
- Part No.:
- 82V2082BFG8
- Manufacturer:
- Renesas
- Category:
- Telecom
- Package:
- 81-LFBGA
- Datasheet:
-
82V2082BFG8.pdf
- Description:
- IC TELECOM INTERFACE 81FPBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,650
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Product details
Overview
IDT82V2082BFG8 from Integrated Device Technology (IDT) is a dual-channel T1/E1/J1 long-haul and short-haul line interface unit (LIU) designed for telecom infrastructure edge devices. It integrates adaptive equalization, AMI/B8ZS/HDB3 encoding/decoding, programmable line build-out (LBO), jitter attenuation, and PRBS/QRSS diagnostics. Key confirmed specs include -36 dB receiver sensitivity at 772 kHz, 3.3 V single supply with 5 V-tolerant I/O, and compliance with ANSI T1.102, ITU G.703/G.736, and ETSI 300-166.
For engineers reviewing the IDT82V2082BFG8 datasheet, IDT82V2082BFG8 pinout, IDT82V2082BFG8 application, or IDT82V2082BFG8 equivalent, this device supports hardware/software configuration of line impedance (75 Ω/100 Ω/110 Ω/120 Ω), per-channel LBO templates, JTAG boundary scan, and non-intrusive G.772 monitoring - critical for CSU/DSU, IAD, and wireless base station design.
Technical Context
The IDT82V2082BFG8 implements two independent receive paths with adaptive equalizers that compensate cable-induced distortion up to 655 ft (T1/J1) or 1200 m (E1), and dual transmit paths with programmable waveform shapers supporting 16 preset pulse templates and user-defined arbitrary waveforms. Each channel includes dedicated LOS/AIS detection, bipolar violation (BPV) counting, and selectable JA placement (receive or transmit path).
It supports three control modes: serial (SPI/I²C-compatible), parallel Motorola/Intel non-multiplexed, and hardware pin-strapped configuration. The integrated JTAG TAP controller enables IEEE 1149.1 boundary scan, while G.772-compliant monitoring allows real-time line status extraction without service interruption.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Dual independent T1/E1/J1 line interfaces - enables single-chip support for redundant or multi-standard trunk links. |
| Receiver Sensitivity | -36 dBm @ 772 kHz, -43 dBm @ 1024 kHz - ensures reliable signal recovery over degraded copper lines. |
| Line Impedance Support | Per-channel selection: 75 Ω, 100 Ω, 110 Ω, 120 Ω - eliminates BOM variants for global deployment across T1 (100 Ω), E1 (75/120 Ω), J1 (110 Ω). |
| Jitter Attenuation | Configurable position (RX/TX path) or disable - enables precise clock clean-up timing alignment in sync-sensitive networks. |
| Loopback Modes | Analog, digital, remote, and inband - provides layered diagnostic access from physical layer to embedded firmware. |
| Power Supply | Single 3.3 V core supply with 5 V tolerance on digital I/O - simplifies power architecture and enables direct interfacing with legacy 5 V controllers. |
| Standards Compliance | ANSI T1.102/T1.403/T1.408; ITU G.703/G.736/G.775/G.823; ETSI 300-166/300-233 - certifies interoperability in North American, European, and Japanese carrier networks. |
Pinout & Package
Package: 81-pin Fine-Pitch Ball Grid Array (FPBGA), RoHS-compliant green package. Pin assignment verified per Figure-3 (FPBGA81 top view) in official IDT datasheet DSC-6229/7.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TCLK1 / TCLK2 | Transmit Clock Input | Accepts 1.544 MHz (T1), 2.048 MHz (E1), or 1.544 MHz (J1); active-edge programmable for system timing flexibility. |
| RCLK1 / RCLK2 | Receive Clock Output | Recovered clock output from CDR; phase-aligned to incoming data - used for synchronous downstream processing. |
| TTIP1/TRING1 & TTIP2/TRING2 | Transmit Line Drivers | Differential outputs driving twisted-pair lines; integrated short-circuit protection and internal clamping diodes. |
| RTIP1/RRING1 & RTIP2/RRING2 | Receive Line Inputs | Differential analog inputs with adaptive equalization; support automatic gain control and cable attenuation indication. |
| JA0/JA1 | Jitter Attenuator Control | 2-bit select for JA placement: 00 = disabled, 01 = RX path, 10 = TX path - configures clock clean-up location per channel. |
| TERM1/TERM2 | Termination Impedance Select | Per-channel 2-bit control for 75 Ω, 100 Ω, 110 Ω, or 120 Ω termination - enables mixed-standard board designs. |
| MONT1/MONT2 | G.772 Monitoring Enable | Activates non-intrusive line monitoring per ITU G.772 - allows real-time error analysis without disrupting live traffic. |
Key Features
| Feature | Design Value |
|---|---|
| Hitless Protection Switching (HPS) | Enables 1+1 line redundancy without external relays or service interruption - reduces failover latency to sub-millisecond. |
| Programmable Waveform Shaping | 16 factory presets + user-defined arbitrary pulse shapes - meets exact spectral mask requirements for T1/E1/J1 long/short haul deployments. |
| PRBS/QRSS Diagnostics | 2¹⁵−1 PRBS for E1, 2²⁰−1 QRSS for T1/J1 - enables standardized bit-error-rate testing per ITU-T O.150/O.151. |
| Adaptive Receive Sensitivity | Dynamic adjustment based on line SNR - maintains link integrity under varying temperature, aging, and cable degradation. |
| 5 V-Tolerant Digital I/O | All control and data pins withstand 5 V logic levels - permits direct connection to legacy microcontrollers without level-shifting circuitry. |
Applications
| CSU/DSU Equipment | Wireless Base Stations |
|---|---|
Use Scenario: Deployed in carrier-grade Channel Service Units/Data Service Units connecting TDM backhaul to IP core networks. IC Role / Device Role / Timing Role: Dual-channel LIU performing line coding (B8ZS/HDB3), clock recovery, and jitter attenuation for synchronized T1/E1 transport. Use Value: Enables single-chip support for both primary and backup trunks with HPS, reducing component count and board space by 40% vs. discrete solutions. | Use Scenario: Embedded in macrocell and small-cell base stations for E1/T1 fronthaul or backhaul connectivity to BSC/RNC. IC Role / Device Role / Timing Role: Physical-layer line interface providing adaptive equalization, G.772 monitoring, and PRBS diagnostics for field-deployed reliability validation. Use Value: Supports remote line health reporting and automated loopback activation - cuts onsite maintenance visits by >60% in distributed RAN deployments. |
| IADs and Gateways | Frame Relay Access Devices |
Use Scenario: Used in Integrated Access Devices aggregating voice, data, and fax over T1/E1 lines for SMB customers. IC Role / Device Role / Timing Role: Dual-channel LIU handling simultaneous T1 and E1 interfaces with software-selectable standards and impedance. Use Value: Eliminates need for separate SKUs per regional standard - one BOM serves North America (T1), Europe (E1), and Japan (J1) markets. | Use Scenario: Installed in Frame Relay Access Devices connecting enterprise LANs to carrier frame relay clouds. IC Role / Device Role / Timing Role: Line interface performing BPV/EXZ error counting, AIS/LOS detection, and inband loopback for SLA verification. Use Value: Provides carrier-grade fault isolation down to individual DS0 channels - accelerates SLA breach root-cause analysis by 70%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel T1/E1/J1 line interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Microchip ZL30122 | Single-channel LIU with integrated PLL; no adaptive equalizer or HPS; supports only E1/T1 (no J1). | Limited to point-to-point E1/T1 links without redundancy; lacks G.772 monitoring and PRBS/QRSS diagnostics. | Select when cost-sensitive single-link applications require minimal feature set and lower channel density. |
| Maxim MAX3695 | Single-channel T1/E1 transceiver; no JTAG, no software-programmable LBO; fixed 75 Ω/120 Ω termination only. | Designed for low-power remote terminals; no HPS, no PRBS generation, no inband loopback capability. | Choose for battery-powered or space-constrained edge nodes where full diagnostic features are unnecessary. |
Compared with ZL30122 and MAX3695, the IDT82V2082BFG8 uniquely delivers dual-channel operation with hitless protection switching, per-channel adaptive equalization, J1 support, and comprehensive G.772-compliant monitoring - making it the only option qualified for carrier-class 1+1 protected trunk interfaces requiring zero-downtime failover and deep diagnostics.
Availability
IDT82V2082BFG8 is available at Aetrix Electronics and suitable for CSU/DSU equipment, wireless base stations, and IADs requiring stable component supply across extended product lifecycles and global regulatory environments.
Supply support for IDT82V2082BFG8 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 IDT82V2082BFG8 belongs to IDT's legacy telecom line interface portfolio, engineered specifically for carrier-grade T1/E1/J1 physical layer interfacing in CSU/DSU, IAD, and wireless infrastructure - emphasizing robustness, standards compliance, and field-serviceable diagnostics.
FAQ
What is the primary function of the IDT82V2082BFG8 in telecom systems?
The IDT82V2082BFG8 functions as a dual-channel T1/E1/J1 line interface unit (LIU), providing full physical layer interfacing including adaptive equalization, AMI/B8ZS/HDB3 encoding/decoding, clock/data recovery, jitter attenuation, and comprehensive diagnostics. In telecom systems, the IDT82V2082BFG8 enables reliable, standards-compliant transmission over copper lines up to 655 ft (T1/J1) or 1200 m (E1), serving as the critical bridge between digital system interfaces and legacy TDM networks.
Does the IDT82V2082BFG8 support both long-haul and short-haul line conditions?
Yes, the IDT82V2082BFG8 natively supports both long-haul and short-haul line conditions through programmable line build-out (LBO) and selectable waveform templates. It includes 16 preset pulse shaping templates optimized for specific cable lengths (e.g., T1 0–133 ft to 533–655 ft) and supports user-defined arbitrary waveforms. The IDT82V2082BFG8 also features adaptive equalization that dynamically compensates for cable attenuation, ensuring robust performance across varying line impairments without hardware changes.
How does the IDT82V2082BFG8 implement Hitless Protection Switching (HPS)?
The IDT82V2082BFG8 implements Hitless Protection Switching (HPS) via integrated hardware logic that enables seamless 1+1 line redundancy without external relays or service interruption. When a failure is detected on the active channel (e.g., LOS or AIS), the IDT82V2082BFG8 automatically switches traffic to the standby channel within sub-millisecond time - maintaining continuous data flow and synchronization. This capability is enabled by shared clock domains, matched signal paths, and internal state preservation across both channels.
What diagnostic capabilities does the IDT82V2082BFG8 provide for field maintenance?
The IDT82V2082BFG8 provides extensive field maintenance diagnostics including PRBS/QRSS generation and detection (2¹⁵−1 for E1, 2²⁰−1 for T1/J1), four loopback modes (analog, digital, remote, inband), G.772-compliant non-intrusive monitoring, and 16-bit BPV/EXZ/PRBS error counters. These features allow technicians to isolate faults to the physical layer, verify line quality remotely, and validate end-to-end link integrity - all without disrupting live traffic. The IDT82V2082BFG8 also reports cable attenuation and adaptive receive sensitivity in real time.
Is the IDT82V2082BFG8 pin-compatible with other IDT LIUs?
Yes, the IDT82V2082BFG8 is pin-compatible with the IDT82V2042E (dual-channel T1/E1/J1 short-haul LIU) and IDT82V2052E (dual-channel E1 short-haul LIU), enabling drop-in replacement in existing designs. This compatibility extends across both 80-pin TQFP and 81-pin FPBGA packages, preserving PCB layout and interconnect integrity. However, the IDT82V2082BFG8 adds long-haul support, adaptive equalization, and enhanced diagnostics not present in those earlier parts - delivering functional upgrade without redesign.
82V2082BFG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 81-LFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Line Interface Unit (LIU)
- Interface:
- LIU
- Number of Circuits:
- -
- Voltage - Supply:
- 3.13V ~ 3.47V
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 81-FPBGA (8x8)
82V2082BFG8 FAQ
1.How can I place an order for 82V2082BFG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 82V2082BFG8 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 82V2082BFG8 reliable?
The price and inventory of 82V2082BFG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 82V2082BFG8 is usually 5 days.
3.What payment methods are accepted for 82V2082BFG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 82V2082BFG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 82V2082BFG8?
82V2082BFG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 82V2082BFG8 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 82V2082BFG8?
For technical support, including 82V2082BFG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 82V2082BFG8 requirements.
6.How does Aetrix verify that 82V2082BFG8 is sourced from the original manufacturer or authorized distributors?
All 82V2082BFG8 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 82V2082BFG8 meets industry standards.
7.What is the process for return or replacement of 82V2082BFG8?
All 82V2082BFG8 units undergo pre-shipment inspection (PSI). If there is an issue with 82V2082BFG8, 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 82V2082BFG8 part is unused and in its original packaging.
Return procedure for 82V2082BFG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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