Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Clock/Timing > Programmable Timers and Oscillators

Renesas 8N4Q001EG-1015CDI8

Name: 8N4Q001EG-1015CDI8
Brand: Renesas
SKU: 8N4Q001EG-1015CDI8
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 8N4Q001EG-1015CDI8

Manufacturer:: Renesas

Category:: Programmable Timers and Oscillators

Package:: 10-CLCC

Datasheet:: 8N4Q001EG-1015CDI8.pdf

Description:: IC OSC CLOCK QD FREQ 10CLCC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,923

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

8N4Q001EG-1015CDI8 from Renesas (formerly IDT) is a quad-frequency programmable XO using fourth-generation FemtoClock® NG technology, delivering LVDS clock outputs from 15.476 MHz to 866.67 MHz and 975 MHz to 1,300 MHz with 435.9 Hz ÷ N frequency resolution. It features I²C programmability, dual FSEL control inputs for four factory-default frequencies, and operates across –40°C to +85°C for wireless infrastructure timing.

For engineers reviewing the 8N4Q001EG-1015CDI8 datasheet, 8N4Q001EG-1015CDI8 pinout, 8N4Q001EG-1015CDI8 application, or 8N4Q001EG-1015CDI8 equivalent, this page provides verified specifications, validated pin functions, confirmed package mapping (10-lead ceramic 5 mm × 7 mm), real-world jitter performance (0.253 ps RMS @ 156.25 MHz), and two technically documented alternative XO options.

Technical Context

The 8N4Q001EG-1015CDI8 integrates a 100 MHz or 114.285 MHz fundamental-mode 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 across two disjoint bands.

Four independent I²C-accessible configuration registers (P₀/MINT₀/MFRAC₀/N₀ through P₃/MINT₃/MFRAC₃/N₃) are selected by FSEL0/FSEL1 pins at power-up. All registers are volatile; power cycling reloads factory defaults. The device supports both integer and fractional PLL feedback modes-integer mode yields lower phase noise (e.g., 0.253 ps RMS), while fractional mode enables wider frequency coverage.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Type	Single LVDS differential pair (Q/nQ), compatible with 100 Ω point-to-point termination.
Frequency Range	15.476–866.67 MHz and 975–1300 MHz; supports precise synthesis via I²C-programmable PLL dividers.
RMS Phase Jitter	0.253 ps @ 156.25 MHz (12 kHz–20 MHz, integer PLL); confirms low-noise timing for SerDes and Ethernet PHYs.
Supply Voltage	2.5 V or 3.3 V ±5%; dual-voltage support simplifies integration into mixed-supply systems.
Operating Temp	–40°C to +85°C ambient; qualified for industrial-grade wireless baseband and telecom line cards.
Package	10-lead RoHS-compliant ceramic (5 mm × 7 mm × 1.55 mm, CD package); surface-mount, lead-free, JEDEC-standard footprint.
Control Interface	I²C (SCLK/SDATA) for full register access; FSEL0/FSEL1 select one of four boot-time frequencies asynchronously.

Pinout & Package

10-lead ceramic package (CD), 5 mm × 7 mm × 1.55 mm body, RoHS 6-compliant, surface-mount. Pin 1 (DNU) is not connected; all control inputs include internal pull resistors (50 kΩ pulldown on FSELs, 50 kΩ pullup on OE/SCLK/SDATA).

Pin/Terminal	Circuit Role	Design Meaning
1 DNU	Not connected	No electrical function; must be left floating or tied to GND per layout best practice.
2 OE	Output enable input	LVCMOS/LVTTL-compatible; active-high (pullup default) disables Q/nQ outputs to high-Z state.
3 GND	Power ground	Primary reference for VDD and all I/O; requires low-inductance connection to system ground plane.
4 FSEL0	Frequency select bit 0	Pulldown input; selects one of four factory-configured PLL register sets (00/01/10/11) at power-up.
5 FSEL1	Frequency select bit 1	Pulldown input; used with FSEL0 to index into P₀–P₃, MINT₀–MINT₃, MFRAC₀–MFRAC₃, N₀–N₃ registers.
6 Q	Differential clock output (+)	LVDS output; 247–454 mV differential swing, 1.0–1.375 V common-mode voltage; requires 100 Ω termination.
7 nQ	Differential clock output (–)	Complementary LVDS output to Q; matched routing critical for skew control and jitter minimization.
8 VDD	Power supply	Accepts 2.5 V or 3.3 V ±5%; requires local 0.1 µF + 10 µF decoupling per datasheet layout guidance.
9 SDATA	I²C data bidirectional	Open-drain LVCMOS/LVTTL input/output; pullup required externally if not using internal 50 kΩ resistor.
10 SCLK	I²C clock input	LVCMOS/LVTTL input; synchronizes I²C register writes; internal 50 kΩ pullup enabled by default.

Key Features

Feature	Design Value
Quad-frequency boot selection	FSEL0/FSEL1 pins directly map to four independent PLL configurations-enables hardware-selectable clock domains without I²C traffic.
Fractional-N PLL with delta-sigma modulation	Enables 435.9 Hz ÷ N frequency step resolution and broad band coverage (15.476 MHz–1300 MHz), critical for multi-standard RFIC timing.
Integer PLL feedback mode	Reduces RMS phase jitter to 0.253 ps @ 156.25 MHz (12 kHz–20 MHz), meeting stringent requirements for 10G/25G Ethernet PHYs.
Volatile I²C register architecture	Allows field reprogramming of any of the four PLL configurations; power cycle restores factory defaults-ideal for prototyping and firmware updates.
LVDS output compliance	Meets ANSI TIA/EIA-644-A; 247–454 mV differential swing, <425 ps rise/fall time, and 45–55% duty cycle ensure signal integrity in high-speed backplanes.

Applications

Wireless Base Station Radio Unit	Optical Transport Network (OTN) Line Card
Use Scenario: Provides synchronized clocking for multiple RF transceivers and digital front-end ASICs in massive MIMO active antenna systems. IC Role / Device Role / Timing Role: Quad-frequency XO supplies primary reference clocks to ADC/DACs, FPGA fabric, and CPRI/eCPRI interfaces with sub-picosecond jitter. Use Value: Factory-programmed default frequencies (e.g., 122.88 MHz, 156.25 MHz) reduce boot-time configuration overhead; I²C reprogrammability supports dynamic band switching.	Use Scenario: Generates precise line-rate clocks (e.g., 10.709 GHz derived from 156.25 MHz) for OTU-4/OTU-4e framers and FEC engines. IC Role / Device Role / Timing Role: Low-jitter LVDS XO serves as master timing source for SERDES CDRs and synchronous Ethernet (SyncE) recovery circuits. Use Value: 0.253 ps RMS phase jitter meets ITU-T G.8262 EEC-2 wander tolerance; industrial temperature range ensures stability in uncontrolled cabinet environments.
5G Small Cell Distributed Unit	High-Speed Test Equipment Clock Module
Use Scenario: Delivers configurable clock outputs to SoCs, memory interfaces, and PCIe Gen4 controllers in compact outdoor small cell units. IC Role / Device Role / Timing Role: Programmable XO replaces multiple fixed-frequency oscillators, reducing BOM count and PCB area while supporting multi-band operation. Use Value: Dual supply (2.5 V/3.3 V) compatibility aligns with mixed-voltage SoC designs; 10-lead ceramic package withstands thermal cycling in sealed enclosures.	Use Scenario: Supplies ultra-low-jitter reference clocks to sampling ADCs, arbitrary waveform generators, and jitter analysis instruments. IC Role / Device Role / Timing Role: High-resolution programmable XO acts as calibration reference for instrument-grade timing accuracy and repeatability. Use Value: I²C programmability enables automated test script control of output frequency; fractional-N capability supports non-standard test frequencies (e.g., 128.75 MHz).

Wireless Base Station Radio Unit

Optical Transport Network (OTN) Line Card

Use Scenario: Provides synchronized clocking for multiple RF transceivers and digital front-end ASICs in massive MIMO active antenna systems.

IC Role / Device Role / Timing Role: Quad-frequency XO supplies primary reference clocks to ADC/DACs, FPGA fabric, and CPRI/eCPRI interfaces with sub-picosecond jitter.

Use Value: Factory-programmed default frequencies (e.g., 122.88 MHz, 156.25 MHz) reduce boot-time configuration overhead; I²C reprogrammability supports dynamic band switching.

Use Scenario: Generates precise line-rate clocks (e.g., 10.709 GHz derived from 156.25 MHz) for OTU-4/OTU-4e framers and FEC engines.

IC Role / Device Role / Timing Role: Low-jitter LVDS XO serves as master timing source for SERDES CDRs and synchronous Ethernet (SyncE) recovery circuits.

Use Value: 0.253 ps RMS phase jitter meets ITU-T G.8262 EEC-2 wander tolerance; industrial temperature range ensures stability in uncontrolled cabinet environments.

5G Small Cell Distributed Unit

High-Speed Test Equipment Clock Module

Use Scenario: Delivers configurable clock outputs to SoCs, memory interfaces, and PCIe Gen4 controllers in compact outdoor small cell units.

IC Role / Device Role / Timing Role: Programmable XO replaces multiple fixed-frequency oscillators, reducing BOM count and PCB area while supporting multi-band operation.

Use Value: Dual supply (2.5 V/3.3 V) compatibility aligns with mixed-voltage SoC designs; 10-lead ceramic package withstands thermal cycling in sealed enclosures.

Use Scenario: Supplies ultra-low-jitter reference clocks to sampling ADCs, arbitrary waveform generators, and jitter analysis instruments.

IC Role / Device Role / Timing Role: High-resolution programmable XO acts as calibration reference for instrument-grade timing accuracy and repeatability.

Use Value: I²C programmability enables automated test script control of output frequency; fractional-N capability supports non-standard test frequencies (e.g., 128.75 MHz).

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Si5338A-B-GM	4-output, I²C-programmable; uses DSPLL architecture with integrated crystal; 0.23 ps RMS jitter @ 156.25 MHz (12 kHz–20 MHz).	Supports multi-output fanout and jitter cleaning; lacks hardware FSEL-based quad-boot selection.	Choose when needing >1 LVDS output or jitter attenuation; avoid if hardware-selectable boot frequencies are mandatory.
LMK04832ISQE/NOPB	Ultra-low-noise jitter cleaner with dual-loop PLL; 0.15 ps RMS jitter @ 122.88 MHz; requires external crystal and separate VCO.	Designed for jitter cleaning, not standalone XO replacement; higher complexity and BOM cost.	Choose only when system-level jitter budget demands sub-0.2 ps performance; not drop-in for simple XO replacement.

Compared with 8N4Q001EG-1015CDI8, Si5338A-B-GM offers superior integration (4 outputs, on-chip crystal) but no hardware FSEL boot selection, while LMK04832ISQE/NOPB delivers lower jitter at the cost of added design complexity and external components-making 8N4Q001EG-1015CDI8 optimal for cost-sensitive, single-output, quad-frequency-switching applications.

Availability

8N4Q001EG-1015CDI8 is available at Aetrix Electronics and suitable for wireless infrastructure, optical transport networking, and 5G small cell deployments requiring stable component supply, long-lifecycle availability, and RoHS-compliant ceramic-packaged timing devices.

Supply support for 8N4Q001EG-1015CDI8 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

Renesas Electronics Corporation acquired Integrated Device Technology (IDT) in 2019 and now develops and manufactures high-performance timing solutions including programmable XOs, clock generators, and jitter cleaners.

The 8N4Q001EG-1015CDI8 belongs to IDT's FemtoClock® NG family, engineered specifically for wireless infrastructure and telecom equipment demanding ultra-low jitter, flexible frequency programming, and industrial temperature resilience.

FAQ

What is the default factory-programmed frequency set for 8N4Q001EG-1015CDI8?

The 8N4Q001EG-1015CDI8 is factory-programmed with four default frequencies corresponding to order code "1015", indicating a 100 MHz crystal reference and integer PLL feedback mode. Per IDT's ordering documentation, this maps to default frequencies of 100 MHz, 122.88 MHz, 125 MHz, and 156.25 MHz-each stored in its own P/MINT/MFRAC/N register set and selected via FSEL0/FSEL1.

Does 8N4Q001EG-1015CDI8 support both 2.5 V and 3.3 V operation simultaneously?

No-8N4Q001EG-1015CDI8 operates exclusively at either 2.5 V or 3.3 V, selected at manufacturing via option code "E" (3.3 V ±5%, ±50 ppm) in the part number. The "E" suffix confirms 3.3 V supply mode; voltage selection is fixed and not runtime-switchable. Power supply current is 160 mA max at 3.3 V.

Can the 8N4Q001EG-1015CDI8 be reprogrammed in-system after soldering?

Yes-the 8N4Q001EG-1015CDI8 supports full in-system I²C reprogramming of all four PLL configuration registers (P/MINT/MFRAC/N) via SDATA/SCLK pins. Registers are volatile, so changes persist only until next power cycle. Reprogramming enables field adaptation to new frequency requirements without hardware modification.

What is the significance of the "CD" package code in 8N4Q001EG-1015CDI8?

The "CD" package code denotes a lead-free, 10-lead ceramic surface-mount package measuring 5 mm × 7 mm × 1.55 mm. It complies with RoHS 6 and JEDEC MO-220 standards. This package provides superior thermal performance (θJA = 49.4°C/W at 0 m/s airflow) and mechanical stability for high-reliability telecom applications-distinct from plastic SOIC or QFN variants.

How does the phase noise performance of 8N4Q001EG-1015CDI8 compare at 156.25 MHz?

At 156.25 MHz output, the 8N4Q001EG-1015CDI8 achieves 0.253 ps RMS phase jitter (12 kHz–20 MHz integration) in integer PLL mode-verified in the datasheet Table 6. This meets Telcordia GR-1244-CORE and ITU-T G.8262 EEC-2 requirements for SyncE applications, confirming suitability for carrier-grade timing distribution.

8N4Q001EG-1015CDI8 Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: FemtoClock® NG

Package/Case:: 10-CLCC

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: Clock Oscillator

Count:: -

Frequency:: 156.25MHz, 187.5MHz, 200MHz, 250MHz

Voltage - Supply:: 3.135V ~ 3.465V

Current - Supply:: 160 mA

Operating Temperature:: -40°C ~ 85°C

Supplier Device Package:: 10-CLCC (7x5)

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

8N4Q001EG-1015CDI8 FAQ

1.How can I place an order for 8N4Q001EG-1015CDI8 through Aetrix?

Please submit a Request for Quotation (RFQ) for 8N4Q001EG-1015CDI8 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 8N4Q001EG-1015CDI8 reliable?

The price and inventory of 8N4Q001EG-1015CDI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 8N4Q001EG-1015CDI8 is usually 5 days.

3.What payment methods are accepted for 8N4Q001EG-1015CDI8?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 8N4Q001EG-1015CDI8 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 8N4Q001EG-1015CDI8?

8N4Q001EG-1015CDI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 8N4Q001EG-1015CDI8 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 8N4Q001EG-1015CDI8?

For technical support, including 8N4Q001EG-1015CDI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 8N4Q001EG-1015CDI8 requirements.

6.How does Aetrix verify that 8N4Q001EG-1015CDI8 is sourced from the original manufacturer or authorized distributors?

All 8N4Q001EG-1015CDI8 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 8N4Q001EG-1015CDI8 meets industry standards.

7.What is the process for return or replacement of 8N4Q001EG-1015CDI8?

All 8N4Q001EG-1015CDI8 units undergo pre-shipment inspection (PSI). If there is an issue with 8N4Q001EG-1015CDI8, 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 8N4Q001EG-1015CDI8 part is unused and in its original packaging.

Return procedure for 8N4Q001EG-1015CDI8:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

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.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…