Renesas 8N3Q001EG-0009CDI

Overview

8N3Q001EG-0009CDI from Integrated Device Technology is a quad-frequency programmable XO (crystal oscillator module) using fourth-generation FemtoClock® NG PLL technology. It delivers one LVPECL differential clock output, supports 2.5V or 3.3V supply, operates from –40°C to +85°C, and provides factory-programmed default frequencies selected via FSEL0/FSEL1 pins. It serves as a high-stability, low-jitter timing source in wireless infrastructure baseband units.

For engineers reviewing the 8N3Q001EG-0009CDI datasheet, 8N3Q001EG-0009CDI pinout, 8N3Q001EG-0009CDI application, or 8N3Q001EG-0009CDI equivalent, this page details its programmable frequency range (15.476–866.67 MHz and 975–1300 MHz), RMS phase jitter (0.244 ps @156.25 MHz, integer PLL), I²C reprogramming capability, and ceramic 10-lead 5 mm × 7 mm package implementation.

Technical Context

The 8N3Q001EG-0009CDI integrates a 3rd-overtone crystal (100 MHz or 114.285 MHz) with a fractional-N PLL featuring a 1950–2600 MHz VCO, configurable pre-divider (P), 25-bit feedback divider (MINT + MFRAC), and post-divider (N). Its four independent configuration registers (P₀–P₃, MINT₀–MINT₃, etc.) enable hardware-selectable default frequencies and volatile I²C reprogramming.

It uses integer PLL feedback by default (order code "1xxx" indicates f_XTAL = 100.000 MHz), yielding optimized phase noise performance. The device implements LVCMOS/LVTTL-compatible control inputs (FSEL0, FSEL1, OE), open-drain I²C interface (SCLK/SDATA), and LVPECL outputs (Q/nQ) terminated to V_CC – 2 V across 50 Ω.

Key Specifications

Pinout & Package

10-lead ceramic surface-mount package (CD), 5 mm × 7 mm × 1.55 mm, lead-free (RoHS 6), with exposed pad not connected internally.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable XO applications.

Compared with Si5338A-A-GM and AK210-01-156.2500T, the 8N3Q001EG-0009CDI uniquely balances single-output LVPECL performance, quad-hardware-selectable defaults, and full I²C reprogrammability in a compact ceramic package - making it ideal for space-constrained, multi-protocol telecom modules requiring both startup speed and field adaptability.

Availability

8N3Q001EG-0009CDI is available at Aetrix Electronics and suitable for wireless infrastructure, optical transport, and high-speed networking applications requiring stable component supply, guaranteed industrial temperature operation, and RoHS-compliant packaging.

Supply support for 8N3Q001EG-0009CDI 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 semiconductor company specializing in timing, memory interface, RF, and power management ICs for communications and computing markets.

The IDT8N3Q001 product line delivers high-precision, programmable clock oscillators targeting wireless infrastructure, telecom switching, and high-speed serial interface timing - emphasizing low phase noise, flexible frequency synthesis, and industrial reliability.

FAQ

What is the factory-programmed default frequency set for 8N3Q001EG-0009CDI?

The "0009" in 8N3Q001EG-0009CDI corresponds to a specific default frequency configuration defined in IDT's ordering documentation. Based on the "1xxx" order code series (indicating 100.000 MHz crystal and integer PLL), this variant is factory-programmed with four frequencies including 156.25 MHz - a key rate for Ethernet and CPRI. Exact values for all four defaults are listed in the FemtoClock NG Ceramic-Package XO Ordering Product Information document.

Does 8N3Q001EG-0009CDI support both 2.5 V and 3.3 V supply voltages simultaneously?

No - the 8N3Q001EG-0009CDI operates in either 2.5 V ±5% or 3.3 V ±5% mode, selected at manufacturing via option code (E = 3.3 V/±50 ppm, F = 2.5 V/±50 ppm). The "E" in the part number confirms 3.3 V operation. Supply voltage must be stable and well-decoupled; mixing rails or dynamic switching between voltages is not supported.

Can the 8N3Q001EG-0009CDI be reprogrammed in-system after soldering?

Yes - the 8N3Q001EG-0009CDI supports full I²C reprogramming of all four P/M/N register sets after power-up. Using the SCLK and SDATA pins, users can write new frequency configurations and select them via FSEL0/FSEL1. Registers are volatile: settings are lost on power cycle and reload factory defaults unless rewritten.

What is the significance of the "CD" package suffix in 8N3Q001EG-0009CDI?

"CD" denotes IDT's lead-free, 10-lead ceramic surface-mount package measuring 5 mm × 7 mm × 1.55 mm. It features RoHS 6 compliance, low thermal resistance (49.4°C/W), and optimized RF grounding for low-phase-noise operation. This package is mechanically and thermally distinct from plastic SOIC or QFN variants and is required for industrial-temperature performance.

How does the OE pin function on the 8N3Q001EG-0009CDI?

The OE (Output Enable) pin on the 8N3Q001EG-0009CDI is an asynchronous, LVCMOS/LVTTL-compatible input with internal pullup. When driven low, it places the Q/nQ LVPECL outputs in high-impedance state - enabling dynamic clock shutdown without affecting internal PLL operation. When high (default), outputs are active. No external pullup is required due to the internal 50 kΩ resistor.