Renesas 82V3389BEQG

Overview

82V3389BEQG from IDT is a synchronous Ethernet WAN PLL device supporting dual DPLLs (T0 and T4) with holdover, phase/frequency monitoring, and multi-protocol clock recovery. It delivers ±50 ppb frequency accuracy in locked mode, <1 ps RMS jitter (12 kHz–20 MHz), and supports 2 kHz–8 kHz frame sync inputs. Used in carrier-grade Ethernet edge routers for precise timing distribution.

For engineers reviewing the 82V3389BEQG datasheet, 82V3389BEQG pinout, 82V3389BEQG application, or 82V3389BEQG equivalent, key selection criteria include dual-DPLL architecture, SyncE compliance per ITU-T G.8262, input clock quality monitoring, holdover stability (±0.1 ppm over –40°C to +85°C), and support for master/slave synchronization in metro aggregation nodes.

Technical Context

The 82V3389BEQG implements two independent digital phase-locked loops (T0 and T4), each configurable for free-run, locked, lost-phase, or holdover modes with programmable temporal response (instantaneous/slow/fast averaged). It monitors input clock activity, frequency deviation, and phase error against coarse/fine thresholds.

It supports five output clocks (OUT1–OUT5) derived from either DPLL or APLL paths, with selectable PECL/LVDS/CMOS output formats, frame sync generation, and JTAG programming. Input clock pre-divider enables compatibility with 2–8 kHz reference frequencies and E1/T1-derived signals.

Key Specifications

Pinout & Package

82V3389BEQG is housed in a 128-pin TQFP package with exposed thermal pad (EPAD), optimized for thermal dissipation in high-density line cards. Pin assignment follows standard microprocessor interface layout with dedicated DPLL control, clock inputs (CLKIN0–CLKIN3), frame sync (FSYNC), and five differential/single-ended outputs (OUT1–OUT5).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous Ethernet timing applications.

Compared with Si5342-A01A-GM and LMK04832RHAT, the 82V3389BEQG uniquely provides dual independent DPLLs with full G.8262 Class C compliance, integrated frame sync processing, and deterministic holdover behavior-making it the only option certified for carrier-grade synchronous Ethernet boundary clock deployment.

Availability

82V3389BEQG is available at Aetrix Electronics and suitable for cellular backhaul, optical transport terminals, IP/MPLS edge routing, and Ethernet aggregation nodes requiring stable component supply and long-term lifecycle assurance.

Supply support for 82V3389BEQG 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

IDT (Integrated Device Technology) was a fabless semiconductor company specializing in timing, memory interface, RF, and power management solutions before its acquisition by Renesas in 2019. It pioneered WAN PLL architectures for telecom infrastructure.

The 82V3389BEQG belongs to IDT's WAN PLL™ family, designed specifically for synchronous Ethernet boundary clocks in carrier-class access and aggregation equipment compliant with ITU-T G.8262.

FAQ

What is the primary timing standard compliance of the 82V3389BEQG?

The 82V3389BEQG fully complies with ITU-T G.8262 for synchronous Ethernet equipment clocks (EEC), meeting Class C specifications for wander transfer, holdover stability (±0.1 ppm), and phase noise. It also supports G.8251 for OTN applications and is used in Stratum 3E-compliant systems. Its dual-DPLL architecture and frame sync input ensure conformance to real-world SyncE network deployment requirements.

Does the 82V3389BEQG support both master and slave timing configurations?

Yes, the 82V3389BEQG supports configurable master/slave operation via dedicated registers and SSM (Synchronization Status Message) processing. In master mode, it generates timing for downstream devices; in slave mode, it locks to upstream SyncE references while maintaining holdover integrity. This flexibility enables hierarchical timing networks in metro and core networks without external logic.

What input clock frequencies does the 82V3389BEQG accept for SyncE operation?

The 82V3389BEQG accepts frame sync inputs from 2 kHz to 8 kHz, covering E1 (2.048 MHz ÷ 1024 = 2 kHz), T1 (1.544 MHz ÷ 768 ≈ 2.009 kHz), and standard SyncE frame rates. Input clock quality monitoring validates frequency accuracy within ±50 ppm and detects phase discontinuities critical for packet-based timing recovery.

How many independent clock outputs does the 82V3389BEQG provide, and what formats are supported?

The 82V3389BEQG provides five programmable outputs (OUT1–OUT5), each independently configurable as PECL, LVDS, or CMOS. Outputs may be sourced from either the T0 or T4 DPLL path, or the APLL, with programmable dividers and phase offsets. This enables simultaneous delivery of multiple timing domains-for example, 156.25 MHz for SerDes, 10 MHz for test equipment, and 2.048 MHz for TDM interfaces-all from a single 82V3389BEQG.

What thermal management features are implemented in the 82V3389BEQG package?

The 82V3389BEQG uses a 128-pin TQFP with exposed EPAD to enhance thermal conduction from the die to the PCB ground plane. Thermal resistance (θ_JA) is specified at 26.5°C/W under JEDEC JESD51-7 conditions. The datasheet includes junction temperature calculation guidance and heatsink evaluation methodology to ensure reliable operation at full load across –40°C to +85°C ambient.