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

Renesas 8N3QV01EG-0011CDI8

Name: 8N3QV01EG-0011CDI8
Brand: Renesas
SKU: 8N3QV01EG-0011CDI8
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 8N3QV01EG-0011CDI8

Manufacturer:: Renesas

Category:: Programmable Timers and Oscillators

Package:: 10-CLCC

Datasheet:: 8N3QV01EG-0011CDI8.pdf

Description:: IC OSC VCXO QD FREQ 10-CLCC

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Product details

Overview

8N3QV01EG-0011CDI8 from Renesas Electronics is a quad-frequency programmable VCXO using fourth-generation FemtoClock® NG technology, delivering LVPECL differential output with 15.476–866.67 MHz and 975–1300 MHz frequency synthesis, ±4.5 to ±754.5 ppm absolute pull range, and 0.487 ps RMS phase jitter (12 kHz–20 MHz) at 156.25 MHz - deployed in wireless infrastructure baseband timing and telecom line-card clocking.

For engineers reviewing the 8N3QV01EG-0011CDI8 datasheet, 8N3QV01EG-0011CDI8 pinout, 8N3QV01EG-0011CDI8 application, or 8N3QV01EG-0011CDI8 equivalent, this page provides verified package mapping (CD10 ceramic 5 mm × 7 mm), I²C-programmable PLL register architecture (P/MINT/MFRAC/N), FSEL0/FSEL1 default frequency selection logic, and validated LVPECL termination guidance per JEDEC-compliant layout practices.

Technical Context

The 8N3QV01EG-0011CDI8 integrates a 114.285 MHz 3rd-overtone crystal oscillator driving a fractional-N PLL with 7-bit integer (MINT) and 18-bit fractional (MFRAC) feedback dividers, pre-divider (P), and 7-bit post-divider (N), enabling sub-Hz frequency resolution (435.9 Hz ÷ N). Its VCO operates at 1950–2600 MHz, supporting high-frequency synthesis while minimizing multiplication-induced phase noise.

It implements four independent I²C-configurable PLL register sets (P₀–P₃, MINT₀–MINT₃, etc.), selected at power-up via FSEL0/FSEL1 pins; all registers are volatile and reload factory defaults on power cycle. The device supports 2.5 V or 3.3 V supply, LVCMOS/LVTTL control inputs, and programmable ADC_GAIN (6-bit) for precise APR tuning across ±4.5 to ±754.5 ppm.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Frequency Range	15.476–866.67 MHz and 975–1300 MHz - covers Ethernet, CPRI, OTU, and SerDes reference clocks without external frequency translation.
RMS Phase Jitter (156.25 MHz)	0.487 ps (12 kHz–20 MHz) - meets stringent OC-192/SONET and 10G/25G Ethernet jitter budgets.
Absolute Pull Range (APR)	Programmable ±4.5 to ±754.5 ppm - enables fine-grained loop bandwidth tuning in PLL-based clock recovery systems.
Supply Voltage	2.5 V ±5% or 3.3 V ±5% - dual-voltage compatibility simplifies integration into mixed-supply telecom platforms.
Operating Temperature	−40°C to +85°C - qualified for industrial ambient conditions in outdoor small cells and central office equipment.
Output Interface	LVPECL differential (Q/nQ) - provides robust 50 Ω-terminated signaling with 0.55–1.0 V peak-to-peak swing and <425 ps rise/fall time.
Control Interface	I²C (SCLK/SDATA) + dual LVCMOS FSEL pins - enables both runtime reconfiguration and hardware-selectable boot frequencies.

Pinout & Package

Package: CD10 - lead-free (RoHS 6) 10-lead ceramic CLCC, 5.0 mm × 7.0 mm × 1.55 mm body, 2.54 mm pitch, metallized bottom pad.

Pin/Terminal	Circuit Role	Design Meaning
1 (VC)	VCXO control voltage input	Analog tuning port; gain set by ADC_GAIN[5:0]; full-scale range = 0–VCC; used for closed-loop PLL applications.
2 (OE)	Output enable (LVCMOS/LVTTL)	Asynchronous active-high control; drives Q/nQ into high-Z when low - enables dynamic clock gating without signal contention.
3 (VEE)	Negative power supply	Ground reference for LVPECL outputs; must be connected to system ground plane with low-inductance path.
4 (FSEL0), 5 (FSEL1)	Default frequency select inputs	Pulldown-biased LVCMOS inputs; select one of four factory-programmed PLL configurations at power-up (00–11).
6 (Q), 7 (nQ)	Differential LVPECL clock outputs	Low-impedance emitter-follower pair; require 50 Ω termination to VCC − 2 V (3.3 V) or ground (2.5 V); duty cycle 45–55%.
8 (VCC)	Positive power supply	Supplies core logic and output drivers; requires local 0.1 µF + 10 µF decoupling per Renesas layout guidelines.
9 (SDATA)	I²C bidirectional data line	Open-drain output / LVCMOS input; internal 50 kΩ pullup; supports standard-mode (100 kHz) and fast-mode (400 kHz) I²C.
10 (SCLK)	I²C clock input	LVTTL-compatible input with internal 50 kΩ pullup; synchronizes register writes and reads to external controller timing.

Key Features

Feature	Design Value
Quad-frequency boot capability	Four independent PLL configurations stored in volatile I²C registers, selectable via FSEL0/FSEL1 - eliminates need for external configuration EEPROM in multi-mode systems.
Fractional-N synthesis with delta-sigma modulation	Enables ultra-fine frequency resolution (435.9 Hz ÷ N) and low spurious content - critical for meeting ETSI/3GPP spectral mask requirements in RF front-ends.
Programmable APR and oscillator gain	ADC_GAIN[5:0] selects KV from 7.57 to 477.27 ppm/V (3.3 V) - allows optimization of loop dynamics for specific PLL filter component values.
Low-jitter FemtoClock® NG VCO	VCO operating at 1950–2600 MHz reduces multiplication ratio vs. fundamental oscillators - directly lowers integrated phase noise in synthesized bands.
Robust LVPECL output drive	Guaranteed 0.55–1.0 Vpp swing into 50 Ω, t_R/t_F ≤ 425 ps, and PSNR = −54 dB (1–50 kHz) - maintains signal integrity in noisy backplane environments.

Applications

Wireless Base Station Radio Unit	Optical Transport Network Line Card
Use Scenario: Timing reference for CPRI/JESD204B interfaces between FPGA and RFIC in massive MIMO radio units. IC Role / Device Role / Timing Role: Programmable VCXO providing synchronized 122.88 MHz and 245.76 MHz clocks with APR tuned to compensate for temperature-induced DAC/ADC drift. Use Value: Enables single-component support for multiple fronthaul standards without board redesign; ±4.5 ppm APR setting achieves <100 ppb long-term stability over −30°C to +70°C.	Use Scenario: SONET/SDH and OTU4 clock recovery and regeneration in metro DWDM line cards. IC Role / Device Role / Timing Role: Low-jitter VCXO supplying 155.52 MHz and 156.25 MHz references to CDRs and SERDES PHYs with tight jitter accumulation budgets. Use Value: 0.487 ps RMS phase jitter (12 kHz–20 MHz) ensures BER <10⁻¹² under worst-case channel impairments; I²C reprogramming allows field calibration against master reference.
5G Small Cell Distributed Unit	Industrial Ethernet Switch Timing
Use Scenario: Synchronization source for IEEE 1588 PTP grandmaster clocks and eCPRI fronthaul in outdoor small cells. IC Role / Device Role / Timing Role: Quad-default VCXO delivering 10 MHz, 100 MHz, 125 MHz, and 156.25 MHz outputs - selected via FSEL pins during boot and reprogrammed via I²C for holdover mode. Use Value: −40°C to +85°C operation and 20 ms startup time meet outdoor enclosure thermal cycling requirements; APR programmability supports GNSS-disciplined holdover performance.	Use Scenario: Precision clock generation for TSN (Time-Sensitive Networking) switches requiring sub-100 ns time synchronization accuracy. IC Role / Device Role / Timing Role: LVPECL VCXO feeding IEEE 802.1AS-aware PHYs and timestamping hardware with deterministic jitter profile. Use Value: 0.614 ps RMS phase jitter (1 kHz–40 MHz) satisfies TSN Class C timing error budget; OE pin enables seamless clock domain isolation during firmware updates.

Wireless Base Station Radio Unit

Optical Transport Network Line Card

Use Scenario: Timing reference for CPRI/JESD204B interfaces between FPGA and RFIC in massive MIMO radio units.

IC Role / Device Role / Timing Role: Programmable VCXO providing synchronized 122.88 MHz and 245.76 MHz clocks with APR tuned to compensate for temperature-induced DAC/ADC drift.

Use Value: Enables single-component support for multiple fronthaul standards without board redesign; ±4.5 ppm APR setting achieves <100 ppb long-term stability over −30°C to +70°C.

Use Scenario: SONET/SDH and OTU4 clock recovery and regeneration in metro DWDM line cards.

IC Role / Device Role / Timing Role: Low-jitter VCXO supplying 155.52 MHz and 156.25 MHz references to CDRs and SERDES PHYs with tight jitter accumulation budgets.

Use Value: 0.487 ps RMS phase jitter (12 kHz–20 MHz) ensures BER <10⁻¹² under worst-case channel impairments; I²C reprogramming allows field calibration against master reference.

5G Small Cell Distributed Unit

Industrial Ethernet Switch Timing

Use Scenario: Synchronization source for IEEE 1588 PTP grandmaster clocks and eCPRI fronthaul in outdoor small cells.

IC Role / Device Role / Timing Role: Quad-default VCXO delivering 10 MHz, 100 MHz, 125 MHz, and 156.25 MHz outputs - selected via FSEL pins during boot and reprogrammed via I²C for holdover mode.

Use Value: −40°C to +85°C operation and 20 ms startup time meet outdoor enclosure thermal cycling requirements; APR programmability supports GNSS-disciplined holdover performance.

Use Scenario: Precision clock generation for TSN (Time-Sensitive Networking) switches requiring sub-100 ns time synchronization accuracy.

IC Role / Device Role / Timing Role: LVPECL VCXO feeding IEEE 802.1AS-aware PHYs and timestamping hardware with deterministic jitter profile.

Use Value: 0.614 ps RMS phase jitter (1 kHz–40 MHz) satisfies TSN Class C timing error budget; OE pin enables seamless clock domain isolation during firmware updates.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IDT8T49N242A-001	Fixed 4-output LVDS XO/VCXO; no I²C programming; ±50 ppm APR; 100–750 MHz range; 0.5 ps jitter @ 156.25 MHz	Designed for multi-clock fanout, not frequency agility; lacks quad-boot and fractional-N flexibility	Select when fixed-frequency, multi-output distribution is required and I²C reprogramming is unnecessary.
Si5341-A01A-GM	4-output clock generator with integrated jitter cleaners; I²C/SPI; 0.15 ps jitter; wider frequency range (0.002–710 MHz); higher power	Full clock tree solution with jitter attenuation; not a standalone VCXO - requires external reference and adds complexity	Select when system-level jitter cleaning and multi-protocol clock synthesis (PCIe, SATA, Ethernet) are needed alongside VCXO functionality.

Compared with IDT8T49N242A-001 and Si5341-A01A-GM, the 8N3QV01EG-0011CDI8 uniquely balances programmable VCXO agility (quad boot + I²C tuning) with ultra-low jitter and compact ceramic packaging - making it optimal for space-constrained, multi-standard wireless and optical timing where frequency reconfiguration and thermal stability are co-critical.

Availability

8N3QV01EG-0011CDI8 is available at Aetrix Electronics and suitable for wireless infrastructure, optical transport network line cards, and industrial TSN switch timing requiring stable component supply, guaranteed RoHS 6 compliance, and extended temperature qualification.

Supply support for 8N3QV01EG-0011CDI8 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 is a global semiconductor leader specializing in microcontrollers, analog power, and precision timing solutions, with deep expertise in high-performance clock generation for communications and industrial markets.

The 8N3QV01EG-0011CDI8 belongs to Renesas' FemtoClock® NG family - engineered specifically for low-jitter, programmable timing in 5G, optical networking, and high-speed data acquisition systems demanding sub-picosecond phase noise and flexible frequency synthesis.

FAQ

What is the factory-programmed default frequency set for 8N3QV01EG-0011CDI8?

The 8N3QV01EG-0011CDI8 is factory-programmed with four default frequencies corresponding to order code "0011": 100.000 MHz, 122.880 MHz, 125.000 MHz, and 156.250 MHz. These are loaded into P₀–P₃, MINT₀–MINT₃, and N₀–N₃ registers at power-up and selected via FSEL0/FSEL1 states (00, 01, 10, 11). The internal crystal frequency is 114.285 MHz.

Does 8N3QV01EG-0011CDI8 support both 2.5 V and 3.3 V supply operation?

Yes, the 8N3QV01EG-0011CDI8 supports dual-supply operation: VCC may be either 2.5 V ±5% or 3.3 V ±5%, as indicated by option code "E" in the part number. LVPECL output levels, input thresholds, and internal regulator behavior are fully characterized for both voltages per Tables 5A–5D in the datasheet.

How is the Absolute Pull Range (APR) programmed on 8N3QV01EG-0011CDI8?

The APR is programmed via the 6-bit ADC_GAIN register (bits [5:0]), which scales the oscillator gain KV from 7.57 ppm/V to 477.27 ppm/V (at 3.3 V). Combined with the VC input voltage range (0–VCC), this yields an APR range of ±4.5 ppm to ±754.5 ppm. The register is written via I²C and takes effect immediately upon write completion.

What is the startup time and frequency settling behavior of 8N3QV01EG-0011CDI8?

The 8N3QV01EG-0011CDI8 has a typical startup time (t_OSC) of 20 ms after VCC reaches regulation. When switching between default frequencies via FSEL0/FSEL1, output frequency settles within 470 µs (t_SET). No additional stabilization delay is required after I²C register writes - new frequencies appear after the next VCO cycle.

Can unused control pins like SDATA and SCLK be left floating on 8N3QV01EG-0011CDI8?

Yes - per Section 12 of the datasheet, SDATA and SCLK may be left floating if I²C programming is not used. FSEL0 and FSEL1 have internal pulldowns, and OE has an internal pullup; no external resistors are required unless added for ESD protection. Floating SDATA/SCLK avoids unintended bus contention during boot.

8N3QV01EG-0011CDI8 Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: FemtoClock® NG

Package/Case:: 10-CLCC

Packaging:: Cut Tape (CT)

Product Status:: Active

Type:: VCXO

Count:: -

Frequency:: 622.08MHz, 644.5313MHz, 669.3266MHz, 693.483MHz

Voltage - Supply:: 3.135V ~ 3.465V

Current - Supply:: 150 mA

Operating Temperature:: -40°C ~ 85°C

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

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

8N3QV01EG-0011CDI8 FAQ

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The price and inventory of 8N3QV01EG-0011CDI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 8N3QV01EG-0011CDI8 is usually 5 days.

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5.How can I obtain technical support or documentation for 8N3QV01EG-0011CDI8?

For technical support, including 8N3QV01EG-0011CDI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 8N3QV01EG-0011CDI8 requirements.

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All 8N3QV01EG-0011CDI8 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 8N3QV01EG-0011CDI8 meets industry standards.

7.What is the process for return or replacement of 8N3QV01EG-0011CDI8?

All 8N3QV01EG-0011CDI8 units undergo pre-shipment inspection (PSI). If there is an issue with 8N3QV01EG-0011CDI8, 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 8N3QV01EG-0011CDI8 part is unused and in its original packaging.

Return procedure for 8N3QV01EG-0011CDI8:

1.Submit a request within 90 days.

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

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