My Inquiry
My Account
Renesas 82V2048BBG
- Part No.:
- 82V2048BBG
- Manufacturer:
- Renesas
- Category:
- Telecom
- Package:
- 160-BGA
- Datasheet:
-
82V2048BBG.pdf
- Description:
- IC TELECOM INTERFACE 160BGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,624
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
IDT82V2048BBG from Integrated Device Technology (IDT) is an octal T1/E1 short-haul line interface unit (LIU) integrating eight independent transceiver channels for telecom access systems. It supports 100 Ω T1, 120 Ω E1 twisted-pair, and 75 Ω E1 coaxial interfaces; provides selectable single/dual rail operation; implements B8ZS/HDB3 or AMI encoding/decoding; and delivers G.703/T1.102-compliant transmit pre-equalization. It is deployed in SDH/SONET multiplexers and digital radio base stations.
For engineers reviewing the IDT82V2048BBG datasheet, IDT82V2048BBG pinout, IDT82V2048BBG application, or IDT82V2048BBG equivalent, key selection criteria include jitter attenuation path configuration (TX/RX), LOS detection compliance (ITU G.775, ETS 300 233), G.772 non-intrusive monitoring capability, hardware vs. serial/parallel host interface mode, and dual-rail clock/data recovery support.
Technical Context
The IDT82V2048BBG integrates eight identical T1/E1 transceiver channels with independent DPLL-based clock and data recovery per channel. Each channel supports programmable line coding (AMI or B8ZS/HDB3), selectable jitter attenuator placement (transmit or receive path), and dual-mode operation: single-rail NRZ I/O with retiming or dual-rail RZ-sliced I/O without retiming.
It features a flexible control architecture supporting hardware mode (via MODE[2:0], TS[2:0], LP[7:0]), serial SPI-like interface (CS/SCLK/SDI/SDO), or 8-bit parallel interface (Intel/Motorola compatible). JTAG boundary scan (TRST/TCK/TMS/TDI/TDO) and G.772-compliant non-intrusive monitoring (MC[3:0]-selected channel → channel 0) are embedded for system testability and in-service diagnostics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| T1/E1 Support | Fully integrated octal LIU supporting 1.544 MHz T1 and 2.048 MHz E1 rates with template-conforming waveform shaping. |
| Line Interface | Supports 100 Ω T1, 120 Ω E1 twisted pair, and 75 Ω E1 coaxial; differential TTIPn/TRINGn outputs and RTIPn/RRINGn inputs. |
| Jitter Attenuation | Selectable TX or RX path placement; meets ETSI CTR12/13, ITU G.736/G.742/G.823, AT&T Pub 62411, and SONET/SDH-optimized G.783 mapping jitter specs. |
| LOS Detection | Digital/analog LOS detector per channel compliant with ITU G.775, ETS 300 233, and T1.231 standards; asserted on insufficient transitions or ones density. |
| Monitoring | G.772 non-intrusive monitoring for any one of channels 1–7 routed to channel 0; enables in-service testing without service interruption. |
| Power & Temp | 3.3 V core (VDDD/VDDA/VDDIO), 3.3 V or 5 V transmitter supply (VDDTx); industrial temperature range: –40°C to +85°C. |
| Interface Modes | Hardware control (MODE[2:0], TS[2:0]), serial host (CS/SCLK/SDI/SDO), or 8-bit parallel host (Intel/Motorola multiplexed/non-multiplexed). |
Pinout & Package
Package: 144-pin Thin Quad Flat Pack (TQFP), RoHS-compliant, lead-free, green option available.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TTIPn / TRINGn (n=0–7) | Differential Transmit Output | Bipolar tip/ring line driver outputs; high-Z when OE = low or TCLKn = low; shaped waveforms meet G.703/T1.102 templates. |
| RTIPn / RRINGn (n=0–7) | Differential Receive Input | Bipolar tip/ring line receiver inputs; feed internal slicer and DPLL for clock/data recovery. |
| TDn / TDPn / TDNn (n=0–7) | Transmit Data Input | Single-rail NRZ (TDn) or dual-rail positive/negative pulse (TDPn/TDNn); sampled on falling edge of TCLKn. |
| RDn / RDPn / RDNn (n=0–7) | Receive Data Output | Single-rail decoded NRZ (RDn) or dual-rail sliced pulses (RDPn/RDNn); clocked by RCLKn edge controlled by CLKE. |
| RCLKn / TCLKn (n=0–7) | Channel Clock I/O | RCLKn outputs recovered clock (clock recovery) or XOR-derived clock (data recovery); TCLKn drives transmit timing and enables TAOS/power-down. |
| LOSn (n=0–7) | Loss-of-Signal Indicator | Active-high open-drain output signaling loss of valid signal per channel per ITU/ETSI/T1 standards. |
| MODE[2:0], TS[2:0], LP[7:0] | Hardware Control Inputs | Configure global mode (hardware/serial/parallel), line code (AMI/B8ZS/HDB3), transmit template, and per-channel loopback (analog/remote/off). |
| CS/JAS, SCLK/TS2, SDI/TS0, SDO/RDY/ACK | Serial Host Interface | Chip-selectable SPI-compatible interface; JAS selects jitter attenuator path (TX/RX/off); RDY enables wait-state insertion. |
| MC[3:0] | Monitoring Configuration | Selects one of channels 1–7 for G.772 non-intrusive monitoring; monitored signal routed internally to channel 0's RTIP0/RRING0 and output on RDP0/RDN0. |
Key Features
| Feature | Design Value |
|---|---|
| Octal T1/E1 Integration | Single-chip solution replaces eight discrete LIUs; reduces PCB area, BOM count, and inter-channel skew in access nodes. |
| Hitless Protection Switching (HPS) | Enables 1:1 protection switching without mechanical relays via software-controlled channel disable/enable and OE pin assertion. |
| Flexible Clock/Data Recovery | Dual-rail mode supports external clock recovery (RDPn/RDNn → XOR → RCLKn); eliminates need for separate clock extraction ICs. |
| Non-Intrusive Monitoring | G.772-compliant monitoring of any active channel (1–7) routed to channel 0 allows real-time in-service diagnostics without traffic disruption. |
| Multi-Standard Jitter Compliance | Jitter attenuator meets ETSI, ITU, and AT&T specifications across both TX and RX paths - critical for carrier-grade timing integrity. |
| 5 V-Tolerant I/O | All digital I/O pins (LP[7:0], TS[2:0], MODE[2:0], CS, etc.) accept 5 V logic levels while operating from 3.3 V supply - simplifies interfacing with legacy controllers. |
Applications
| SDH/SONET Multiplexers | Digital Access Cross-Connects |
|---|---|
Use Scenario: Aggregating multiple T1/E1 tributaries into STM-1/OC-3 payloads in metro edge nodes. IC Role / Device Role / Timing Role: Octal LIU providing physical layer framing, clock recovery, and jitter attenuation for each tributary channel. Use Value: Meets ITU G.783 mapping jitter requirements for SONET/SDH transport; enables deterministic phase alignment across all eight channels. |
Use Scenario: Reconfigurable TDM switching fabric connecting PBX, DSLAMs, and central office switches. IC Role / Device Role / Timing Role: Line interface bridging legacy T1/E1 infrastructure with modern digital switch fabrics. Use Value: Hardware-mode fast reconfiguration (via MODE/TS pins) supports dynamic cross-connect provisioning without host CPU intervention. |
| Remote Wireless Base Stations | Microwave Transmission Systems |
Use Scenario: Backhaul interface between remote radio units and baseband units over leased T1/E1 lines. IC Role / Device Role / Timing Role: Short-haul LIU delivering robust signal integrity under variable temperature and EMI conditions. Use Value: Industrial temperature range (–40°C to +85°C) and analog/digital LOS detection ensure reliable link monitoring in uncontrolled outdoor enclosures. |
Use Scenario: Point-to-point microwave links using E1 as the payload interface to legacy PDH networks. IC Role / Device Role / Timing Role: Physical layer transceiver enabling G.703-compliant waveform generation and jitter cleanup before RF modulation. Use Value: Built-in transmit pre-equalization and selectable jitter attenuator eliminate need for external equalizers or reclockers in compact microwave ODU designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal T1/E1 line interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Maxim MAX5864 | Quad-channel only; no G.772 monitoring; requires external jitter cleaner for G.783 compliance. | Suitable for cost-sensitive, lower-density T1/E1 aggregation where full octal integration is unnecessary. | Choose MAX5864 only if channel count ≤4 and jitter attenuation can be implemented externally. |
| TI TLK2201B | Single-channel SerDes with LVDS I/O; no native T1/E1 line coding or LOS detection; requires external codec and transformer interface. | Targeted at packet-based backhaul (e.g., TDM-over-IP) rather than native TDM line interface. | TLK2201B is not a functional replacement; use only in new designs adopting serial TDM transport, not legacy T1/E1 physical layer. |
Compared with IDT82V2048BBG, MAX5864 offers fewer channels and lacks embedded G.772 monitoring, limiting in-service diagnostics; TLK2201B omits native T1/E1 line coding and LOS detection entirely, requiring significant external circuitry to replicate basic LIU functionality - making IDT82V2048BBG the sole drop-in octal solution meeting full ITU/ETSI carrier-grade requirements.
Availability
IDT82V2048BBG is available at Aetrix Electronics and suitable for SDH/SONET multiplexers, digital access cross-connects, and remote wireless base stations requiring stable component supply across extended product lifecycles.
Supply support for IDT82V2048BBG 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 IDT82V2048 belongs to IDT's legacy telecom line interface portfolio, designed specifically for carrier-class T1/E1 short-haul access equipment requiring integrated jitter management, LOS detection, and non-intrusive monitoring.
FAQ
What is the primary function of the IDT82V2048BBG in a T1/E1 system?
The IDT82V2048BBG serves as an octal short-haul line interface unit that performs physical layer functions including T1/E1 signal transmission, reception, clock and data recovery, line coding (AMI/B8ZS/HDB3), jitter attenuation, and loss-of-signal detection. It integrates eight complete transceiver channels on a single die, eliminating discrete components and reducing board space in telecom access equipment.
Does the IDT82V2048BBG support both T1 and E1 standards simultaneously?
No - the IDT82V2048BBG operates in either T1 mode (1.544 MHz) or E1 mode (2.048 MHz), selected globally via hardware pins (TS[2:0]) or software register. All eight channels must operate at the same rate; mixed-rate operation across channels is not supported.
How does the G.772 non-intrusive monitoring feature work on the IDT82V2048BBG?
The IDT82V2048BBG uses MC[3:0] pins to select one of channels 1–7 for internal routing to channel 0's receive path. The monitored line signal appears on RDP0/RDN0 without disrupting traffic on the source channel - enabling real-time bit-error and alarm analysis during live operation per ITU-T G.772.
What are the power supply requirements for the IDT82V2048BBG?
The IDT82V2048BBG requires three supply domains: 3.3 V for core/digital I/O (VDDD, VDDA, VDDIO); 3.3 V or 5 V for all eight transmitter drivers (VDDT0–VDDT7 - must be uniform); and dedicated analog grounds (GNDD, GNDA, GNDT0–GNDT7). T1 operation mandates 5 V on VDDT pins.
Can the IDT82V2048BBG perform hitless protection switching?
Yes - the IDT82V2048BBG supports Hitless Protection Switching (HPS) by allowing software-controlled disabling of one channel's transmitter (via register or TCLKn low) while enabling another, combined with OE pin assertion to place drivers in high-Z. This enables 1:1 protection without mechanical relays or service interruption.
82V2048BBG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 160-BGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- Line Interface Unit (LIU)
- 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)
82V2048BBG FAQ
1.How can I place an order for 82V2048BBG through Aetrix?
Please submit a Request for Quotation (RFQ) for 82V2048BBG 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 82V2048BBG reliable?
The price and inventory of 82V2048BBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 82V2048BBG is usually 5 days.
3.What payment methods are accepted for 82V2048BBG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 82V2048BBG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 82V2048BBG?
82V2048BBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 82V2048BBG 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 82V2048BBG?
For technical support, including 82V2048BBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 82V2048BBG requirements.
6.How does Aetrix verify that 82V2048BBG is sourced from the original manufacturer or authorized distributors?
All 82V2048BBG 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 82V2048BBG meets industry standards.
7.What is the process for return or replacement of 82V2048BBG?
All 82V2048BBG units undergo pre-shipment inspection (PSI). If there is an issue with 82V2048BBG, 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 82V2048BBG part is unused and in its original packaging.
Return procedure for 82V2048BBG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
82V2048BBG Tags
-
LMC567CMX/NOPB
Texas Instruments
-
LM567CMX/NOPB
Texas Instruments
-
LM567CM/NOPB
Texas Instruments
-
VSC8531XMW-02
Microchip Technology
-
VSC8531XMW-05
Microchip Technology
-
GPY115C0VI
MaxLinear, Inc.
-
SI32185-A-FMR
Skyworks Solutions Inc.
-
VSC8541XMV-05
Microchip Technology
-
SI32178-B-FM1R
Skyworks Solutions Inc.
-
GPY215C0VI
MaxLinear, Inc.
-
CPC7514ZTR
Littelfuse Inc.
-
VSC8502XML-03
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
