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Renesas 82V2044BBG
- Part No.:
- 82V2044BBG
- Manufacturer:
- Renesas
- Category:
- Telecom
- Package:
- 160-BGA
- Datasheet:
-
82V2044BBG.pdf
- Description:
- IC TELECOM INTERFACE 160BGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
IDT82V2044BBG from Integrated Device Technology is a quad-channel T1/E1 short-haul line interface unit (LIU) supporting 100 Ω T1, 120 Ω E1 twisted-pair, and 75 Ω E1 coaxial interfaces. It integrates four independent transceivers with digital phase-locked loop (DPLL) clock/data recovery, selectable AMI/B8ZS/HDB3 encoding/decoding, built-in transmit pre-equalization compliant with G.703/T1.102, and programmable jitter attenuation meeting ITU G.823, ETSI CTR12/13, and SONET/SDH G.783 specifications. It is deployed in SDH/SONET multiplexers and digital radio base stations.
For engineers reviewing the IDT82V2044BBG datasheet, IDT82V2044BBG pinout, IDT82V2044BBG application, or IDT82V2044BBG equivalent, key selection criteria include per-channel TCLK/RCLK timing control, hardware vs. serial/parallel host interface configuration, dual-rail vs. single-rail data interface mode, G.772 non-intrusive monitoring capability, and 3.3 V core / 3.3–5 V transmitter supply compatibility.
Technical Context
The IDT82V2044BBG implements four identical channels, each with independent DPLL-based clock and data recovery, configurable transmit waveform shaping (G.703-compliant), and selectable jitter attenuator placement-either in transmit or receive path per channel. Its dual-rail interface supports NRZ positive/negative pulse transmission (TDPn/TDNn) and reception (RDPn/RDNn), while single-rail mode uses TDn/RDn with B8ZS/HDB3 or AMI line coding.
Hardware control uses MODE[2:0], TS[2:0], and LP[3:0] pins for mode selection, template configuration, and loopback; software control supports Intel/Motorola-compatible 8-bit parallel (multiplexed/non-multiplexed) or 4-wire SPI-like serial interface. JTAG boundary scan (TRST/TCK/TMS/TDI/TDO) enables board-level testability without requiring host intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 4 independent T1/E1 transceivers with full per-channel control |
| Data Rate | 1.544 MHz (T1) or 2.048 MHz (E1) - defines master clock and channel clock timing |
| Jitter Attenuation | Meets ITU G.823, G.742, ETSI CTR12/13 - configurable per-channel in TX or RX path |
| Line Code Support | AMI, B8ZS (T1), HDB3 (E1) - selectable per channel in single-rail mode |
| Transmit Equalization | Built-in pre-emphasis meets G.703 & T1.102 - ensures compliance with line templates |
| Monitoring | G.772 non-intrusive monitoring on any one of channels 1–3 - routed to channel 0 for in-service testing |
| Supply Voltages | VDDIO = 3.3 V; VDDD/VDDA = 3.3 V; VDDT = 3.3 V or 5 V - T1 requires 5 V VDDT |
| Operating Temp | −40°C to +85°C - qualified for industrial and telecom infrastructure environments |
Pinout & Package
Available in 144-pin Thin Quad Flat Pack (TQFP) and 160-pin Plastic Ball Grid Array (PBGA); IDT82V2044BBG corresponds to the 144-pin TQFP variant. Package includes dedicated analog/digital power and ground domains (VDDT/GNDT, VDDA/GNDA, VDDD/GNDD, VDDIO/GNDIO) and 16 DNC (Do Not Connect) pins.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| TTIPn/TRINGn | Differential line driver outputs | High-Z when OE low or TCLKn low - enables hitless protection switching without relays |
| RTIPn/RRINGn | Differential line receiver inputs | Accept bipolar signals from 100/120/75 Ω media - feed internal slicer and DPLL |
| TCLKn | Per-channel transmit clock input | Falling-edge sampled; ≥16-cycle high enables Transmit All Ones (TAOS) mode |
| RCLKn | Recovered receive clock output | Rising/falling edge output controlled by CLKE - used for synchronous data capture |
| TDn / TDPn/TDNn | Transmit data input (single/dual rail) | Single-rail: NRZ on TDn; Dual-rail: polarity-encoded on TDPn/TDNn - determines line coding behavior |
| RDn / RDPn/RDNn | Receive data output (single/dual rail) | Single-rail: decoded NRZ on RDn; Dual-rail: raw pulse detection on RDPn/RDNn - supports clock recovery bypass |
| LOSn | Loss-of-signal indicator | Asserts high on insufficient transitions/ones density - meets ITU G.775 and T1.231 |
| MODE[2:0] | Hardware control mode select | Configures interface as hardware, serial host, or parallel host - determines pin function mapping |
Key Features
| Feature | Design Value |
|---|---|
| Hitless Protection Switching (HPS) | Enables 1+1 redundancy without mechanical relays via OE and TCLKn-controlled high-Z drivers |
| G.772 Non-Intrusive Monitoring | Routes monitored channel (1–3) signal to channel 0 for real-time in-service diagnostics without service interruption |
| Selectable Jitter Attenuator Path | Per-channel switchable between transmit and receive paths - satisfies SONET/SDH G.783 mapping jitter requirements |
| Dual-Rail Data Interface | Supports raw RZ slicing (no DPLL) for external clock recovery - decouples timing domain from device |
| 5 V-Tolerant I/O with 3.3 V Core | Allows direct interfacing with legacy 5 V logic while minimizing core power consumption and heat |
| JTAG Boundary Scan | Full IEEE 1149.1 compliance with TRST/TCK/TMS/TDI/TDO - enables automated PCB test and debug |
Applications
| SDH/SONET Multiplexers | Digital Radio Base Stations |
|---|---|
Use Scenario: Aggregating multiple T1/E1 feeds into OC-3/STM-1 transport streams in metro access nodes. IC Role / Device Role / Timing Role: Line interface unit providing physical layer framing, clock recovery, and jitter cleanup before mapping into SONET payload. Use Value: Integrated DPLL and G.783-compliant jitter attenuation eliminate need for discrete jitter cleaners, reducing BOM count and board area. |
Use Scenario: Backhaul connectivity between remote radio units and baseband units in 2G/3G cellular infrastructure. IC Role / Device Role / Timing Role: Physical-layer transceiver handling E1/T1 framer interface, LOS detection, and local loopback for field diagnostics. Use Value: Hardware-configurable loopback modes (analog, remote, digital) enable rapid fault isolation without host software intervention. |
| Central Office Digital Cross-Connects | Microwave Transmission Systems |
Use Scenario: Reconfigurable TDM switching fabric where line integrity and timing stability are critical for voice-grade services. IC Role / Device Role / Timing Role: Quad-channel LIU delivering synchronized clock/data recovery across four independent E1 links with G.775-compliant LOS detection. Use Value: Single-chip integration of four LIUs reduces interconnect complexity and improves channel-to-channel skew control versus discrete solutions. |
Use Scenario: High-reliability point-to-point microwave backhaul carrying aggregated E1 traffic over RF links with variable propagation delay. IC Role / Device Role / Timing Role: Short-haul line interface with programmable jitter attenuator placed in receive path to suppress microwave-induced wander. Use Value: ETSI CTR12/13 and ITU G.742 compliance ensures stable operation under bursty error conditions typical of microwave fading. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar T1/E1 line interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TLK2201B | Single-channel, 10/100BASE-TX PHY with integrated transformer drive - no B8ZS/HDB3 support, no G.772 monitoring | Designed for Ethernet over copper, not TDM telephony - lacks T1/E1 framing, LOS, or code violation detection | Only suitable if migrating from TDM to packet-based backhaul and accepting loss of legacy alarm reporting and line coding compliance |
| Maxim MAX3265 | Single-channel T1/E1 LIU with fixed AMI/B8ZS decoding - no dual-rail interface, no per-channel jitter attenuator routing, no G.772 monitoring | Targeted at cost-sensitive PBX and channel bank designs - omits advanced features required for carrier-grade SONET edge | Appropriate for non-carrier applications where quad integration and in-service monitoring are unnecessary |
Compared with IDT82V2044BBG, TLK2201B serves packet-oriented links without TDM timing constraints, while MAX3265 offers basic LIU functionality at lower integration and feature depth - neither provides quad-channel density, G.772 monitoring, or flexible jitter attenuator path selection essential for SDH/SONET edge deployment.
Availability
IDT82V2044BBG is available at Aetrix Electronics and suitable for SDH/SONET multiplexers, digital radio base stations, and central office digital cross-connects requiring stable component supply across extended product lifecycles.
Supply support for IDT82V2044BBG 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, specializes in timing, memory interface, and RF power solutions for communications infrastructure and datacenter applications.
IDT82V2044BBG belongs to IDT's legacy telecom line interface portfolio, designed specifically for carrier-grade T1/E1 short-haul physical layer interfacing with emphasis on jitter management, in-service monitoring, and hardware/software configurability.
FAQ
What is the primary function of the IDT82V2044BBG in a T1/E1 system?
The IDT82V2044BBG functions as a quad-channel short-haul line interface unit that performs bidirectional conversion between digital system-side signals (NRZ or dual-rail) and bipolar line signals (AMI/B8ZS/HDB3) for T1 (1.544 MHz) or E1 (2.048 MHz) transmission. It integrates clock/data recovery, transmit equalization, jitter attenuation, LOS detection, and loopback test capabilities - all within a single 144-pin TQFP package. Each channel operates independently, enabling flexible multi-link deployments.
Does the IDT82V2044BBG support both T1 and E1 standards simultaneously?
No - the IDT82V2044BBG operates in either T1 or E1 mode globally, selected via TS[2:0] pins in hardware mode or register configuration in software mode. T1 mode uses 1.544 MHz reference clocks and B8ZS line coding; E1 mode uses 2.048 MHz clocks and HDB3 coding. The device does not support mixed-mode operation across channels, nor does it auto-detect line rate or coding scheme.
How is Hitless Protection Switching implemented in the IDT82V2044BBG?
Hitless Protection Switching (HPS) in the IDT82V2044BBG is achieved by controlling the OE (Output Enable) pin and individual TCLKn signals. Driving OE low places all TTIPn/TRINGn drivers in high-Z state without disrupting internal logic or clock recovery. Per-channel TCLKn deactivation similarly disables a specific transmitter while preserving receiver operation. This enables seamless 1+1 protection switchover without relay wear or signal interruption - a requirement for carrier-class availability.
What are the power supply requirements for the IDT82V2044BBG?
IDT82V2044BBG requires four distinct supply domains: VDDIO = 3.3 V (I/O), VDDD = 3.3 V (digital core), VDDA = 3.3 V (analog core), and VDDT = 3.3 V or 5 V (transmitter drivers). For T1 applications, only 5 V VDDT is supported per datasheet specification. All VDDT pins must be tied to the same voltage - mixing 3.3 V and 5 V on different VDDT pins is prohibited. Decoupling capacitors must be placed per pin group as specified in the layout guidelines.
Can the IDT82V2044BBG perform non-intrusive monitoring on all four channels?
No - the IDT82V2044BBG supports G.772 non-intrusive monitoring on only one of channels 1–3 at a time, with the monitored signal routed to channel 0's RTIP0/RRING0 inputs. Channel 0 itself cannot be monitored, and simultaneous monitoring of multiple channels is not supported. Configuration is done via MC[3:0] pins in hardware mode or corresponding registers in software mode, with dedicated status bits indicating active monitoring state.
82V2044BBG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 160-BGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- Transceiver
- Interface:
- LIU
- Number of Circuits:
- -
- Voltage - Supply:
- 3.13V ~ 3.47V
- Current - Supply:
- 55mA
- Power (Watts):
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 160-PBGA (15x15)
82V2044BBG FAQ
1.How can I place an order for 82V2044BBG through Aetrix?
Please submit a Request for Quotation (RFQ) for 82V2044BBG 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 82V2044BBG reliable?
The price and inventory of 82V2044BBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 82V2044BBG is usually 5 days.
3.What payment methods are accepted for 82V2044BBG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 82V2044BBG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 82V2044BBG?
82V2044BBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 82V2044BBG 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 82V2044BBG?
For technical support, including 82V2044BBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 82V2044BBG requirements.
6.How does Aetrix verify that 82V2044BBG is sourced from the original manufacturer or authorized distributors?
All 82V2044BBG 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 82V2044BBG meets industry standards.
7.What is the process for return or replacement of 82V2044BBG?
All 82V2044BBG units undergo pre-shipment inspection (PSI). If there is an issue with 82V2044BBG, 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 82V2044BBG part is unused and in its original packaging.
Return procedure for 82V2044BBG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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