Renesas 8N3Q001EG-0005CDI8

Overview

8N3Q001EG-0005CDI8 from Integrated Device Technology is a quad-frequency programmable XO (crystal oscillator module) with fourth-generation FemtoClock® NG PLL architecture, supporting output frequencies from 15.476 MHz to 866.67 MHz and 975 MHz to 1,300 MHz, RMS phase jitter of 0.244 ps at 156.25 MHz (12 kHz–20 MHz), LVPECL differential output, and operation over –40°C to +85°C ambient temperature - used in wireless infrastructure baseband timing and telecom line-card clock synthesis.

For engineers reviewing the 8N3Q001EG-0005CDI8 datasheet, 8N3Q001EG-0005CDI8 pinout, 8N3Q001EG-0005CDI8 application, or 8N3Q001EG-0005CDI8 equivalent, this page delivers verified technical context, I²C-programmable frequency resolution down to 435.9 Hz ÷ N, factory-default quad-frequency selection via FSEL0/FSEL1, and precise phase-noise performance for high-speed serial interface clocking.

Technical Context

The 8N3Q001EG-0005CDI8 integrates a 100 MHz or 114.285 MHz fundamental-mode crystal oscillator driving a fractional-N PLL with 25-bit feedback divider (7-bit integer MINT + 18-bit fractional MFRAC), 2-bit pre-divider P, and 7-bit post-divider N - enabling ultra-fine frequency synthesis across two disjoint bands. Its VCO operates at 1950–2600 MHz, and internal I²C registers store four independent P/M/N configurations mapped to FSEL[1:0] states.

It implements delta-sigma noise shaping for fractional PLL operation, supports integer-only feedback for optimized phase noise (e.g., 0.244 ps RMS jitter at 156.25 MHz), and features LVCMOS/LVTTL-compatible control inputs with internal pullups/pulldowns - all within a RoHS-compliant 10-lead ceramic 5 mm × 7 mm × 1.55 mm package rated for industrial temperature range.

Key Specifications

Pinout & Package

Package: 10-lead ceramic surface-mount (CD package), 5 mm × 7 mm × 1.55 mm, RoHS 6-compliant, industrial temperature grade.

Key Features

Applications

Equivalent & Alternatives

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

Compared with Si5338A-A-GM and 8N3SV78EC-0005CDI, the 8N3Q001EG-0005CDI8 uniquely combines single-LVPECL output, 1300 MHz upper frequency limit, and guaranteed 0.244 ps RMS jitter at 156.25 MHz - making it optimal for space-constrained, high-performance telecom and datacom clocking where output format, phase noise, and frequency ceiling are decisive.

Availability

8N3Q001EG-0005CDI8 is available at Aetrix Electronics and suitable for wireless infrastructure, optical transport, and high-speed data center switch designs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for industrial-grade timing modules.

Supply support for 8N3Q001EG-0005CDI8 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 power management ICs for communications, computing, and industrial markets.

The IDT8N3Q001 product line delivers programmable XOs based on FemtoClock® NG technology - engineered specifically for telecom infrastructure, wireless base stations, and high-speed serial link timing where ultra-low jitter, flexible frequency selection, and industrial reliability are essential.

FAQ

What is the maximum output frequency supported by the 8N3Q001EG-0005CDI8?

The 8N3Q001EG-0005CDI8 supports two distinct output frequency ranges: 15.476 MHz to 866.67 MHz and 975 MHz to 1,300 MHz. The upper limit of 1,300 MHz is confirmed in Table 3B and AC Characteristics (fOUT parameter), enabling direct clocking of 25G/50G SerDes receivers without multiplication. This capability is intrinsic to its 1950–2600 MHz VCO and 2-bit pre-divider architecture.

Does the 8N3Q001EG-0005CDI8 require an external crystal?

No, the 8N3Q001EG-0005CDI8 integrates a monolithic 100 MHz or 114.285 MHz third-overtone crystal within the ceramic package - confirmed in the Principles of Operation section and Block Diagram. It functions as a complete XO (oscillator module), eliminating external crystal placement, load capacitance tuning, and associated layout sensitivity.

How does the I²C interface interact with the FSEL0/FSEL1 pins on the 8N3Q001EG-0005CDI8?

The FSEL0/FSEL1 pins select one of four volatile I²C register sets (Pn/MINTn/MFRACn/Nn) at power-up. After boot, the 8N3Q001EG-0005CDI8 can be reprogrammed via I²C to update any register set - then FSEL[1:0] is toggled to activate the new configuration. This enables field-updatable frequency profiles without changing hardware connections.

What is the RMS phase jitter specification for the 8N3Q001EG-0005CDI8 at 156.25 MHz?

The 8N3Q001EG-0005CDI8 achieves 0.244 ps RMS phase jitter (12 kHz–20 MHz integration) under integer PLL feedback mode with 100 MHz crystal reference - specified in Features and Table 6. This value is measured at 156.25 MHz output and represents best-in-class performance for telecom-grade timing, meeting stringent ITU-T G.823/G.8262 requirements.

Is the 8N3Q001EG-0005CDI8 compatible with both 2.5 V and 3.3 V supply rails?

Yes, the 8N3Q001EG-0005CDI8 operates natively from either 2.5 V ±5% or 3.3 V ±5%, as verified in Tables 5A and 5B. Both supply modes fully support all features including LVPECL output drive strength, I²C interface levels, and phase jitter performance - allowing seamless integration into mixed-voltage system designs without level shifters.