Renesas 8N3Q001EG-0016CDI

Overview

8N3Q001EG-0016CDI from Integrated Device Technology is a quad-frequency programmable XO (crystal oscillator module) with fourth-generation FemtoClock® NG PLL architecture, delivering one LVPECL differential clock output (Q/nQ), 2.5V/3.3V supply support, ±20 ppm frequency stability (option code K), and operation from –40°C to +85°C. It enables precise frequency synthesis across two bands: 15.476–866.67 MHz and 975–1300 MHz, targeting wireless infrastructure baseband timing.

For engineers reviewing the 8N3Q001EG-0016CDI datasheet, 8N3Q001EG-0016CDI pinout, 8N3Q001EG-0016CDI application, or 8N3Q001EG-0016CDI equivalent, this page provides verified package mapping, I²C-programmable PLL register structure, RMS phase jitter (0.244 ps @ 156.25 MHz, integer mode), FSEL0/FSEL1 default frequency selection logic, and validated alternative XO options for telecom clocking systems.

Technical Context

The 8N3Q001EG-0016CDI integrates a 100 MHz fundamental crystal oscillator driving a fractional-N PLL with 25-bit feedback divider (7-bit MINT + 18-bit MFRAC), 2-bit pre-divider (P), and 7-bit post-divider (N). Its VCO operates at 1950–2600 MHz, enabling high-resolution synthesis with step size of 435.9 Hz ÷ N.

It supports four factory-programmed power-up frequencies selected via FSEL0/FSEL1 pins, each mapped to independent P/MINT/MFRAC/N registers. All registers are volatile and reprogrammable over I²C (SDATA/SCLK), with OE enabling asynchronous output disable. The device uses internal pulldown/pullup resistors on control inputs and requires 50 Ω LVPECL termination to VCC – 2 V.

Key Specifications

Pinout & Package

8N3Q001EG-0016CDI is housed in a 10-lead ceramic surface-mount package (IDT CD package, 5 mm × 7 mm × 1.55 mm), with exposed pad not electrically connected. Pin 1 (DNU) is unused and must be left unconnected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 8N3Q001EG-0016CDI, Si5338A-A-GM offers greater output count but lacks the 975–1300 MHz band essential for RF sampling, while 8A34002NLGI achieves lower jitter at the cost of inflexible pinout and no quad-default selection - making 8N3Q001EG-0016CDI optimal for field-upgradable, dual-band telecom timing.

Availability

8N3Q001EG-0016CDI is available at Aetrix Electronics and suitable for wireless infrastructure, optical transport network line cards, and enterprise switch fabric controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 8N3Q001EG-0016CDI 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, designs high-performance timing, memory interface, and RF solutions for communications, computing, and industrial markets.

The IDT8N3Q001 family delivers quad-frequency programmable XOs using FemtoClock® NG technology, specifically engineered for carrier-grade wireless infrastructure and telecom equipment demanding low phase noise, field-reprogrammability, and industrial temperature resilience.

FAQ

What is the factory-default frequency configuration for 8N3Q001EG-0016CDI?

The "0016" order code indicates the 8N3Q001EG-0016CDI is factory-programmed with four default frequencies: 100 MHz, 122.88 MHz, 125 MHz, and 156.25 MHz. These correspond to FSEL[1:0] states 00, 01, 10, and 11 respectively, and are stored in volatile I²C registers loaded at power-up. The device uses a 100 MHz crystal (1xxx order code), enabling integer PLL mode for lowest phase jitter.

Does 8N3Q001EG-0016CDI support both 2.5V and 3.3V supply voltages simultaneously?

No - the 8N3Q001EG-0016CDI operates exclusively in either 2.5 V ±5% or 3.3 V ±5% mode, selected at manufacturing via option code (K = 3.3 V, L = 2.5 V). The "E" in 8N3Q001EG-0016CDI confirms 3.3 V supply. Both voltage modes deliver identical jitter and frequency range performance, but the supply must be stable and well-decoupled per datasheet recommendations.

Can the 8N3Q001EG-0016CDI generate frequencies between 866.67 MHz and 975 MHz?

No - the 8N3Q001EG-0016CDI has a defined frequency gap between 866.67 MHz and 975 MHz. Its datasheet specifies two disjoint bands: 15.476–866.67 MHz (N = 3–126) and 975–1300 MHz (N = 2). Attempting to program frequencies in the gap will result in invalid PLL lock or undefined output behavior; design must avoid this region.

How does the OE pin function on the 8N3Q001EG-0016CDI?

The OE (Output Enable) pin on the 8N3Q001EG-0016CDI is an asynchronous, LVCMOS/LVTTL-compatible control input with internal pullup. When driven low, it places both Q and nQ outputs in high-impedance state immediately; when high (default), outputs are active. No external pullup is required, but a 1 kΩ resistor may be added for ESD protection per datasheet guidance.

What is the significance of the "CDI" suffix in 8N3Q001EG-0016CDI?

The "CDI" suffix in 8N3Q001EG-0016CDI decodes as: CD = RoHS-compliant 10-lead ceramic package (5 mm × 7 mm × 1.55 mm), I = industrial temperature range (–40°C to +85°C). This matches the device's physical construction, environmental rating, and regulatory compliance - critical for deployment in outdoor wireless base stations and carrier-grade networking hardware.