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Home Products Integrated Circuits (ICs)Clock/Timing - Programmable Timers and Oscillators~~8N4DV85AC-0032CDI8~~

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8N4DV85AC-0032CDI8 - Renesas Electronics America Inc

Name: Renesas Electronics America Inc 8N4DV85AC-0032CDI8
Brand: Renesas Electronics America Inc
SKU: 8N4DV85AC-0032CDI8
Availability: InStock
Rating: 5 (7 reviews)

Manufacturer Part Number: 8N4DV85AC-0032CDI8

Manufacturer: Renesas Electronics Corporation

Allelco Part Number: 98D-8N4DV85AC-0032CDI8

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 11,091 pcs available, New & Original

Parts Description: IC OSC VCXO DUAL FREQ 6-CLCC

Package: 6-CLCC (7x5)

Data sheet: 8N4DV85AC-0032C.pdf

Datasheets
FemtoClock® NG Ordering Guide.pdf

PCN Design/Specification
All Dev Label Chg 1/Dec/2022.pdf

RoHs Status: ROHS3 Compliant

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In stock: 11091

Specifications

8N4DV85AC-0032CDI8 Tech Specifications
Renesas Electronics America Inc - 8N4DV85AC-0032CDI8 technical specifications, attributes, parameters and parts with similar specifications to Renesas Electronics America Inc - 8N4DV85AC-0032CDI8

Product Attribute	Attribute Value
Manufacturer	Renesas Electronics Corporation
Voltage - Supply	3.135V ~ 3.465V
Type	VCXO
Supplier Device Package	6-CLCC (7x5)
Series	FemtoClock® NG
Package / Case	6-CLCC
Package	Tape & Reel (TR)

Product Attribute	Attribute Value
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Frequency	76.8MHz, 19.2MHz
Current - Supply	140 mA
Count	-
Base Product Number	8N4DV85

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8542.39.0001

Frequently Asked Questions(FAQ)

What are the key electrical characteristics and operating conditions for the 8N4DV85AC-0032CDI8 VCXO when integrating it into a high-reliability timing system?: The 8N4DV85AC-0032CDI8 is a dual-frequency VCXO IC designed for precision clock generation, operating across a supply voltage range of 3.135V to 3.465V with a typical supply current draw of 140 mA. It delivers two primary output frequencies—76.8 MHz and 19.2 MHz—from a single device in a compact 6-CLCC (7x5) package. The component is rated for industrial temperature operation from -40°C to 85°C, making it suitable for harsh environments where thermal stability and reliability are critical. Its low Moisture Sensitivity Level (MSL 1) ensures robust handling during assembly, while RoHS3 compliance and REACH unaffected status align with global regulatory requirements for electronic systems.

How does the 8N4DV85AC-0032CDI8 compare to standard fixed-frequency oscillators in terms of frequency flexibility and phase noise performance for telecom infrastructure applications?: Unlike fixed-frequency oscillators, the 8N4DV85AC-0032CDI8 offers true voltage-controlled frequency tuning, enabling dynamic adjustment around its nominal outputs—76.8 MHz and 19.2 MHz—which is essential for synchronization and calibration in telecom systems. This tunability supports precise frequency alignment in dense network environments. While specific phase noise metrics aren't provided in the base parameters, Renesas’ FemtoClock® NG series is engineered for ultra-low jitter performance, typically achieving sub-picosecond RMS phase noise under optimal conditions. This level of stability surpasses most general-purpose oscillators, reducing bit error rates and improving signal integrity in high-speed serial links.

In what scenarios would the 8N4DV85AC-0032CDI8 be preferred over discrete oscillator solutions, and what design trade-offs should be considered?: The 8N4DV85AC-0032CDI8 is ideal when space-constrained, multi-frequency clocking with integrated control is required, such as in FPGA or ASIC reference clock designs where both 76.8 MHz and 19.2 MHz signals must coexist. Compared to discrete solutions, it reduces board real estate and simplifies BOM complexity. However, designers must account for its higher current consumption (140 mA) relative to some low-power crystal oscillators, which may impact power budgets in battery-operated or thermally limited systems. Additionally, while integration improves reliability, it also introduces a single point of failure—designers must evaluate redundancy needs accordingly.

Can the 8N4DV85AC-0032CDI8 support frequency switching between 76.8 MHz and 19.2 MHz without glitches or instability, and what external circuitry is typically needed?: Yes, the 8N4DV85AC-0032CDI8 is designed to support seamless frequency switching between its two outputs, leveraging internal divide-by-N logic to generate the lower 19.2 MHz from the primary 76.8 MHz source. Switching can occur via control pins or analog input voltage changes, depending on configuration. To ensure clean transitions and minimize transient artifacts, external low-pass filtering and stable supply decoupling (e.g., 10 µF bulk + 0.1 µF ceramic capacitors) are recommended near the VDD pin. Proper layout with short return paths and minimized parasitic inductance further enhances switching stability, especially in sensitive analog control loops.

What are the implications of using the 8N4DV85AC-0032CDI8 in a system requiring tight holdover stability after power interruption?: The 8N4DV85AC-0032CDI8 lacks built-in oven-controlled crystal technology or GPS-disciplined feedback, so its holdover performance relies on the inherent aging and temperature drift characteristics of the underlying quartz resonator. Over time and temperature cycling within the -40°C to 85°C range, frequency accuracy may degrade beyond ±2 ppm unless actively compensated. For applications demanding sub-ppm holdover, such as base station backhauls, additional external discipline (e.g., GNSS or IEEE 1588) is necessary. Thus, standalone use of this VCXO may not meet stringent telecom grade-A holdover specs without supplemental timing sources.

How does the 6-CLCC packaging of the 8N4DV85AC-0032CDI8 affect thermal management and PCB routing compared to surface-mount crystal oscillator packages?: The 6-CLCC (7x5) package offers moderate thermal resistance due to its ceramic construction, which helps dissipate heat from the integrated circuit more effectively than plastic-packaged alternatives. However, at 140 mA supply current, localized heating could still raise junction temperatures if not properly managed through adequate copper pour and airflow. From a routing perspective, the CLCC’s leadframe design allows shorter bond wires, reducing inductance and improving signal integrity—beneficial for high-speed outputs like 76.8 MHz. Still, designers must maintain careful impedance control and minimize stub lengths on clock traces to preserve rise times and reduce EMI susceptibility.

Is the 8N4DV85AC-0032CDI8 compatible with automated optical inspection (AOI) and reflow soldering processes used in high-volume manufacturing?: Yes, the 8N4DV85AC-0032CDI8 features a standard surface-mount footprint compatible with industry-standard pick-and-place equipment and AOI systems. As an MSL 1 component, it tolerates unlimited floor life and can withstand multiple pre-heat cycles without degradation. However, due to its ceramic package, extreme thermal shock during reflow must be avoided to prevent cracking. Standard lead-free reflow profiles (peak ≤260°C) are generally acceptable, but process validation with actual production panels is advised to confirm solder joint reliability and electrical continuity post-assembly.

What are the potential risks of exceeding the specified supply voltage range when using the 8N4DV85AC-0032CDI8 in a 3.3V system?: Operating beyond the rated 3.135V to 3.465V supply window—such as exposing the device to 3.6V—can stress internal ESD protection structures and degrade long-term reliability. Even brief excursions may cause latch-up or shift control loop behavior, affecting frequency tuning linearity. Given its 140 mA operating current, even minor overvoltage conditions can increase power dissipation and accelerate electromigration in metal interconnects. Designers should include series resistors or TVS diodes in sensitive supply lines and verify LDO regulator output stability under load transients to maintain safe operating conditions throughout system lifetime.

How does the dual-output capability of the 8N4DV85AC-0032CDI8 benefit system architects designing PCIe or Ethernet interfaces, and what synchronization challenges might arise?: The simultaneous availability of 76.8 MHz and 19.2 MHz enables direct support for common data rates such as 10 GigE (using 19.2 MHz as a reference) and PCIe Gen3/Gen4 (needing 76.8 MHz for lane clocking), eliminating the need for external dividers or multiplexers. This integration reduces latency and simplifies clock domain crossing logic. However, phase alignment between the two outputs must be maintained within ±1 UI to avoid setup/hold violations in downstream logic. Misalignment can result from unequal trace lengths or asymmetric loading, necessitating careful PCB layout and possibly programmable delay elements for fine-tuning.

What considerations apply when replacing legacy oscillator modules with the 8N4DV85AC-0032CDI8 in existing hardware designs?: Migration to the 8N4DV85AC-0032CDI8 requires verifying pin compatibility with the original footprint and confirming that control interface signals (e.g., VC input, OE pin) match system expectations. Since it integrates voltage control functionality, analog tuning circuits must be preserved or redesigned to accommodate variable input impedance. Additionally, output drive strength and slew rate should be validated against receiver specifications, as CLCC-packaged devices may exhibit different capacitive loading behavior than SOIC or QFN alternatives. Signal integrity analysis via IBIS models is strongly recommended before committing to board revision.

Parts with Similar Specifications

The three parts on the right have similar specifications to Renesas Electronics America Inc 8N4DV85AC-0032CDI8

Product Attribute
Part Number	8N4DV85AC-0036CDI8	8N4DV85AC-0033CDI8	8N4DV85AC-0034CDI8	8N4DV85AC-0028CDI8
Manufacturer	Renesas Electronics America Inc	Renesas Electronics America Inc	Renesas Electronics America Inc	Renesas Electronics America Inc
Type	-	-	-	-
Voltage - Supply	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Frequency	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Series	-	-	-	-
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Current - Supply	-	-	-	-
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Count	-	-	-	-

8N4DV85AC-0032CDI8 Datasheet PDF

Download 8N4DV85AC-0032CDI8 pdf datasheets and Renesas Electronics America Inc documentation for 8N4DV85AC-0032CDI8 - Renesas Electronics America Inc.

Datasheets: FemtoClock® NG Ordering Guide.pdf
PCN Design/Specification: All Dev Label Chg 1/Dec/2022.pdf

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Customer Reviews

Evaluation: 10 Articles

Nord***mbedded

Jul 20, 2026

Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.
Arch***ct

Jul 15, 2026

Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.
FPGA***lorer88

Jul 7, 2026

The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.
Nath***oleman

Jun 29, 2026

Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.
Emil***rperTech

Jun 23, 2026

Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.
Liam***terTech

Jun 15, 2026

Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.
Nath***rooks

Jun 11, 2026

Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.
Dani***alkerTech

Jun 1, 2026

Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.
Yuki***aka88

May 26, 2026

信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。
Stev***aker

May 20, 2026

Solid diode for power rectification. Works well in switching circuits.

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America	Brazil	7
Europe	Germany	5
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Oceania	Australia	6
Oceania	New Zealand	5
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Asia	Japan	4
Middle East	Israel	6

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1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

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