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

Renesas 8N0QV01EH-0009CD8

Name: 8N0QV01EH-0009CD8
Brand: Renesas
SKU: 8N0QV01EH-0009CD8
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 8N0QV01EH-0009CD8

Manufacturer:: Renesas

Category:: Programmable Timers and Oscillators

Package:: 10-CLCC

Datasheet:: 8N0QV01EH-0009CD8.pdf

Description:: IC OSC VCXO QD FREQ 10CLCC

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Product details

Overview

8N0QV01EH-0009CD8 from Renesas Electronics (formerly IDT) is a quad-frequency programmable voltage-controlled crystal oscillator (VCXO) using Fourth Generation FemtoClock® NG technology. It delivers LVCMOS clock output from 15.476 MHz to 260 MHz, supports ±2.5 to ±727.5 ppm absolute pull range (APR), achieves 0.635 ps RMS phase jitter (12 kHz–20 MHz at 156.25 MHz), and operates from -40°C to +85°C on 2.5 V or 3.3 V supply - deployed in wireless infrastructure baseband timing and telecom line-card synchronization.

For engineers reviewing the 8N0QV01EH-0009CD8 datasheet, 8N0QV01EH-0009CD8 pinout, 8N0QV01EH-0009CD8 application, or 8N0QV01EH-0009CD8 equivalent, key selection criteria include I²C-programmable frequency resolution (435.9 Hz ÷ N), FSEL0/FSEL1-selectable power-up frequencies, VCXO control voltage linearity (±0.4% BSL), LVCMOS output drive capability (15 Ω @ 3.3 V), and ceramic 5 mm × 7 mm × 1.55 mm RoHS-compliant packaging.

Technical Context

The 8N0QV01EH-0009CD8 integrates a 114.285 MHz fundamental-mode crystal oscillator with a high-frequency FemtoClock® NG VCO (1950–2600 MHz), fractional-N PLL architecture featuring 7-bit integer (MINT) and 18-bit fractional (MFRAC) feedback dividers, and a 2-bit pre-divider (P) plus 7-bit post-divider (N). Its four independent configuration registers (P₀–P₃, MINT₀–MINT₃, MFRAC₀–MFRAC₃, N₀–N₃) enable hardware-selectable default frequencies via FSEL[1:0] and volatile I²C reprogramming.

Control is implemented through an LVCMOS/LVTTL-compatible I²C interface (SCLK/SDATA), analog VC input (0–VDD, programmable gain 7.57–630 ppm/V), and OE pin for asynchronous output enable/disable. The device uses internal pullup/pulldown resistors (50 kΩ) on control inputs and delivers low-noise timing with modulation bandwidth of 100 kHz and nominal VC = VDD/2.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Frequency Range	15.476 MHz to 260 MHz - supports Ethernet, CPRI, OTU, and SONET/SDH clocking across multiple standards.
RMS Phase Jitter (156.25 MHz)	0.635 ps (12 kHz–20 MHz) - meets stringent OC-192 and 10GBase-R jitter budgets.
Absolute Pull Range (APR)	±2.5 to ±727.5 ppm - configurable via I²C ADC_GAIN register to match loop filter bandwidth requirements.
Supply Voltage	2.5 V or 3.3 V - dual-voltage compatibility simplifies integration into mixed-supply systems without level shifters.
Operating Temperature	-40°C to +85°C - qualified for industrial-grade wireless infrastructure and carrier-grade networking equipment.
Frequency Resolution	435.9 Hz ÷ N - enables precise alignment to ITU-T G.8262 EEC-2 and Telcordia GR-1244-CORE compliant frequencies.
Package	10-lead ceramic, 5 mm × 7 mm × 1.55 mm - RoHS 6-compliant surface-mount package with low thermal resistance (θJA = 49.4°C/W).

Pinout & Package

8N0QV01EH-0009CD8 is housed in a lead-free, RoHS 6-compliant 10-lead ceramic package measuring 5 mm × 7 mm × 1.55 mm (CD package). Pin 7 is marked DNU (Do Not Use) and must remain unconnected.

Pin/Terminal	Circuit Role	Design Meaning
1 - VC	VCXO Control Voltage Input	Analog tuning input; sets center frequency via programmable KV (7.57–630 ppm/V); requires clean low-noise loop filter sourcing.
2 - OE	Output Enable	Asynchronous LVCMOS/LVTTL input; drives Q output to high-Z when low - enables dynamic clock gating in power-sensitive systems.
3 - GND	Power Ground	Dedicated ground reference for core logic and oscillator circuitry; must be connected to low-impedance system ground plane.
4, 5 - FSEL0, FSEL1	Default Frequency Select	LVCMOS/LVTTL inputs with internal pulldowns; select one of four factory-programmed P/M/N configurations at power-up (00–11).
6 - Q	LVCMOS Clock Output	Single-ended 2.5 V/3.3 V LVCMOS output; 15 Ω impedance @ 3.3 V; 45–55% duty cycle; rise/fall time ≤700 ps.
8 - VDD	Positive Supply	2.5 V or 3.3 V core supply; requires local 0.1 µF decoupling capacitor placed directly on device side of PCB.
9 - SDATA	I²C Data Input	Open-drain-capable LVCMOS/LVTTL input with internal 50 kΩ pullup; supports standard/fast-mode I²C (≤400 kHz).
10 - SCLK	I²C Clock Input	LVCMOS/LVTTL input with internal 50 kΩ pullup; synchronizes register writes and reads during I²C transactions.

Key Features

Feature	Design Value
Quad-frequency hardware selection	FSEL[1:0] pins directly map to four independent PLL register sets (P₀–P₃, MINT₀–MINT₃, etc.), enabling instant frequency switching without I²C overhead.
Volatile I²C programming	Full read/write access to all PLL control registers (frequency, APR, polarity, gain) - allows field updates and custom frequency synthesis without factory reprogramming.
High-resolution fractional-N synthesis	25-bit feedback divider (7-bit MINT + 18-bit MFRAC) achieves sub-Hz frequency granularity and minimizes spurs in synthesized outputs.
Low-jitter FemtoClock® NG core	Integrated 114.285 MHz crystal + 1950–2600 MHz VCO delivers 0.635 ps RMS jitter (12 kHz–20 MHz), meeting Stratum 3E and SyncE phase noise requirements.
Configurable VCXO gain and linearity	ADC_GAIN[5:0] register adjusts oscillator gain (KV) from 7.57 to 630 ppm/V; BSL linearity ±0.4% ensures predictable loop stability across temperature.

Applications

Wireless Baseband Unit Timing	Optical Transport Network (OTN) Line Cards
Use Scenario: Synchronizing multi-carrier LTE/5G baseband processing units requiring traceable, low-jitter clock sources aligned to IEEE 1588 PTP grandmaster clocks. IC Role / Device Role / Timing Role: VCXO provides disciplined clock output locked to network-derived timing signals via analog VC input; acts as local holdover oscillator during packet loss. Use Value: ±727.5 ppm APR and 0.635 ps jitter ensure <100 ns time error accumulation over 24 hours under holdover, satisfying 3GPP TS 38.104 timing stability requirements.	Use Scenario: Generating synchronous 156.25 MHz, 125 MHz, and 100 MHz clocks for OTU2/OTU3 framer, FEC, and SerDes ICs in DWDM line cards. IC Role / Device Role / Timing Role: Programmable VCXO serves as primary clock source for SONET/SDH and OTN PHY layers; frequency reconfigured via I²C during provisioning or protocol adaptation. Use Value: 435.9 Hz ÷ N resolution enables exact generation of ITU-T G.709 frame rates (e.g., 156.25 MHz ± 0.001 ppm), eliminating need for external jitter cleaners.
Carrier-Grade Ethernet Switch Fabric	Small Cell Backhaul Synchronization
Use Scenario: Providing Stratum 3E-compliant clocks to switch fabric ASICs and packet processors in metro aggregation switches supporting SyncE and IEEE 1588. IC Role / Device Role / Timing Role: Acts as boundary clock oscillator; VC input driven by PLL tracking IEEE 1588 Best Master Clock Algorithm (BMCA) output for phase alignment. Use Value: -40°C to +85°C operation and ±50 ppm temperature stability (Option E/F) maintain <1.5 ppm total stability over life, satisfying ITU-T G.8262 EEC-2 compliance.	Use Scenario: Enabling GPS-denied synchronization in urban small cells using TDD-LTE eNodeB timing derived from macro-cell backhaul links. IC Role / Device Role / Timing Role: VCXO functions as slave oscillator in hybrid holdover mode - locked to recovered backhaul clock via VC, then sustaining timing during brief link outages. Use Value: 1 ms frequency settling time after FSEL change and 20 ms oscillator start-up support rapid reacquisition (<50 ms) after backhaul interruption per 3GPP TR 36.819.

Wireless Baseband Unit Timing

Optical Transport Network (OTN) Line Cards

Use Scenario: Synchronizing multi-carrier LTE/5G baseband processing units requiring traceable, low-jitter clock sources aligned to IEEE 1588 PTP grandmaster clocks.

IC Role / Device Role / Timing Role: VCXO provides disciplined clock output locked to network-derived timing signals via analog VC input; acts as local holdover oscillator during packet loss.

Use Value: ±727.5 ppm APR and 0.635 ps jitter ensure <100 ns time error accumulation over 24 hours under holdover, satisfying 3GPP TS 38.104 timing stability requirements.

Use Scenario: Generating synchronous 156.25 MHz, 125 MHz, and 100 MHz clocks for OTU2/OTU3 framer, FEC, and SerDes ICs in DWDM line cards.

IC Role / Device Role / Timing Role: Programmable VCXO serves as primary clock source for SONET/SDH and OTN PHY layers; frequency reconfigured via I²C during provisioning or protocol adaptation.

Use Value: 435.9 Hz ÷ N resolution enables exact generation of ITU-T G.709 frame rates (e.g., 156.25 MHz ± 0.001 ppm), eliminating need for external jitter cleaners.

Carrier-Grade Ethernet Switch Fabric

Small Cell Backhaul Synchronization

Use Scenario: Providing Stratum 3E-compliant clocks to switch fabric ASICs and packet processors in metro aggregation switches supporting SyncE and IEEE 1588.

IC Role / Device Role / Timing Role: Acts as boundary clock oscillator; VC input driven by PLL tracking IEEE 1588 Best Master Clock Algorithm (BMCA) output for phase alignment.

Use Value: -40°C to +85°C operation and ±50 ppm temperature stability (Option E/F) maintain <1.5 ppm total stability over life, satisfying ITU-T G.8262 EEC-2 compliance.

Use Scenario: Enabling GPS-denied synchronization in urban small cells using TDD-LTE eNodeB timing derived from macro-cell backhaul links.

IC Role / Device Role / Timing Role: VCXO functions as slave oscillator in hybrid holdover mode - locked to recovered backhaul clock via VC, then sustaining timing during brief link outages.

Use Value: 1 ms frequency settling time after FSEL change and 20 ms oscillator start-up support rapid reacquisition (<50 ms) after backhaul interruption per 3GPP TR 36.819.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Si510-PROG	Programmable XO (not VCXO); no analog VC input; fixed APR; I²C-only frequency setup.	Lacks analog tuning loop support - unsuitable for PLL-based holdover or phase alignment use cases.	Select only if application requires static frequency with no VC-driven discipline or holdover.
DS3231MZ	Temperature-compensated RTC with 32.768 kHz output; no programmability above 100 kHz; no VC interface.	Provides time-of-day functionality only; cannot generate high-speed communication clocks or support VCXO loop architectures.	Not a functional alternative; consider only for low-frequency timing or calendar functions unrelated to 8N0QV01EH-0009CD8's domain.

Compared with Si510-PROG and DS3231MZ, the 8N0QV01EH-0009CD8 uniquely combines I²C programmability, analog VC tuning, quad-hardware-selectable frequencies, and sub-picosecond jitter - making it the sole option among these three for carrier-class VCXO applications requiring both precision synthesis and closed-loop phase control.

Availability

8N0QV01EH-0009CD8 is available at Aetrix Electronics and suitable for wireless infrastructure, optical transport networking, and carrier-grade Ethernet switching requiring stable component supply, long-term lifecycle assurance, and guaranteed RoHS 6 compliance.

Supply support for 8N0QV01EH-0009CD8 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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications - formed through the merger of IDT and Renesas in 2019.

The 8N0QV01EH-0009CD8 belongs to Renesas' FemtoClock® NG programmable timing portfolio, designed specifically for high-performance, low-jitter clock generation in telecom and networking infrastructure where phase noise, frequency flexibility, and thermal stability are critical.

FAQ

What is the maximum output frequency supported by the 8N0QV01EH-0009CD8?

The 8N0QV01EH-0009CD8 supports a maximum output frequency of 260 MHz. This upper limit is specified under AC Electrical Characteristics (Table 6A) with P = 1 and N = 10–126. Operation at 260 MHz is validated across the full -40°C to +85°C temperature range and meets all jitter, duty cycle, and rise/fall time specifications when loaded per the LVCMOS test circuit.

Does the 8N0QV01EH-0009CD8 require external pull-up resistors on its I²C lines?

No, the 8N0QV01EH-0009CD8 includes internal 50 kΩ pull-up resistors on both SDATA (Pin 9) and SCLK (Pin 10), as confirmed in Table 2 (Pin Characteristics) of the datasheet. External pull-ups are not required but may be added for enhanced noise immunity in electrically noisy environments - a 1 kΩ resistor is recommended if used.

How many distinct frequencies can be stored and selected on the 8N0QV01EH-0009CD8?

The 8N0QV01EH-0009CD8 stores exactly four distinct frequency configurations in dedicated I²C registers (P₀/MINT₀/MFRAC₀/N₀ through P₃/MINT₃/MFRAC₃/N₃). These are selected at power-up or dynamically via the FSEL0 and FSEL1 pins (00, 01, 10, 11), and each can be independently reprogrammed over I²C without affecting the others.

What is the significance of the "CD8" suffix in the 8N0QV01EH-0009CD8 part number?

The "CD8" suffix in 8N0QV01EH-0009CD8 identifies the package variant: CD denotes the 10-lead ceramic 5 mm × 7 mm × 1.55 mm body, and "8" indicates the industrial temperature grade (-40°C to +85°C). This matches the marking convention in Table 9 of the datasheet: "IDT8N0QV01yH-ddddCDI" for industrial, where "I" is implied in the "CD8" encoding.

Can the 8N0QV01EH-0009CD8 operate from a 2.5 V supply while maintaining full 260 MHz output capability?

Yes, the 8N0QV01EH-0009CD8 fully supports 2.5 V operation across its entire 15.476 MHz to 260 MHz output range. Table 5B confirms IDD ≤ 145 mA at 2.5 V, and Table 6A explicitly lists fOUT = 15.476–260 MHz under "VDD = 2.5 V ± 5%", with verified jitter (0.70–1.20 ps RMS), rise/fall time (≤800 ps), and duty cycle (45–55%) performance.

8N0QV01EH-0009CD8 Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: FemtoClock® NG

Package/Case:: 10-CLCC

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: VCXO

Count:: -

Frequency:: 148.5MHz, 148.35165MHz, 74.25MHz, 74.175824MHz

Voltage - Supply:: 3.135V ~ 3.465V

Current - Supply:: 140 mA

Operating Temperature:: 0°C ~ 70°C

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

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

8N0QV01EH-0009CD8 FAQ

1.How can I place an order for 8N0QV01EH-0009CD8 through Aetrix?

Please submit a Request for Quotation (RFQ) for 8N0QV01EH-0009CD8 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

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The price and inventory of 8N0QV01EH-0009CD8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 8N0QV01EH-0009CD8 is usually 5 days.

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8N0QV01EH-0009CD8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 8N0QV01EH-0009CD8 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 8N0QV01EH-0009CD8?

For technical support, including 8N0QV01EH-0009CD8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 8N0QV01EH-0009CD8 requirements.

6.How does Aetrix verify that 8N0QV01EH-0009CD8 is sourced from the original manufacturer or authorized distributors?

All 8N0QV01EH-0009CD8 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 8N0QV01EH-0009CD8 meets industry standards.

7.What is the process for return or replacement of 8N0QV01EH-0009CD8?

All 8N0QV01EH-0009CD8 units undergo pre-shipment inspection (PSI). If there is an issue with 8N0QV01EH-0009CD8, 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 8N0QV01EH-0009CD8 part is unused and in its original packaging.

Return procedure for 8N0QV01EH-0009CD8:

1.Submit a request within 90 days.

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

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