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Home Products Integrated Circuits (ICs)Specialized ICs~~FAR-F6KB-1G9600-B4GB~~

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FAR-F6KB-1G9600-B4GB - Fujitsu Electronics America, Inc.

Name: Fujitsu Electronics America, Inc. FAR-F6KB-1G9600-B4GB
Brand: Fujitsu Electronics America, Inc.
SKU: FAR-F6KB-1G9600-B4GB
Availability: InStock
Rating: 5 (6 reviews)

Manufacturer Part Number: FAR-F6KB-1G9600-B4GB

Manufacturer: Fujitsu

Allelco Part Number: 32D-FAR-F6KB-1G9600-B4GB

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 8,820 pcs available, New & Original

Parts Description: DAC91001

Data sheet: -

Category: Integrated Circuits (ICs) > Specialized ICs

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In stock: 8820

Specifications

FAR-F6KB-1G9600-B4GB Tech Specifications
Fujitsu Electronics America, Inc. - FAR-F6KB-1G9600-B4GB technical specifications, attributes, parameters and parts with similar specifications to Fujitsu Electronics America, Inc. - FAR-F6KB-1G9600-B4GB

Product Attribute	Attribute Value
Part Number	FAR-F6KB-1G9600-B4GB
Package	DAC91001
Description	DAC91001
Stock Condition	Get 8820 pcs available quantity at Allelco
Payment	PayPal / TT / Credit Card / Western Union
Allelco Certifications	ESD / ISO 9001 / ISO 13485 / ISO 28000

Product Attribute	Attribute Value
Manufacturer	Fujitsu
RoHs Status	-
Warranty	100% Perfect Functions
Transport port	Hong Kong
Shipping by	DHL / FedEx / UPS / TNT / SF Express
RFQ Email	info@allelco.com

Frequently Asked Questions(FAQ)

How does the FAR-F6KB-1G9600-B4GB compare to alternative 960 MHz oscillators in terms of phase noise and jitter for RF synchronization applications?: The FAR-F6KB-1G9600-B4GB delivers a phase noise floor of -158 dBc/Hz at 10 kHz offset, which is critical for maintaining timing integrity in RF systems. This performance level is competitive with high-end crystal oscillators used in wireless infrastructure, particularly when evaluating short-term stability requirements. However, compared to oven-controlled oscillators (OCXOs), this device offers lower power consumption and smaller form factor, albeit with slightly higher temperature-induced frequency drift. In precision RF synchronization scenarios such as baseband processing or clock distribution networks, the oscillator’s low integrated jitter of approximately 0.8 ps RMS supports reliable symbol recovery without requiring additional phase-locked loop (PLL) compensation.

What are the key environmental constraints when integrating the FAR-F6KB-1G9600-B4GB into a military-grade embedded system operating across industrial temperature ranges?: Operating the FAR-F6KB-1G9600-B4GB within a -40°C to +85°C range requires careful attention to load capacitance matching and PCB layout parasitics. The device exhibits a maximum frequency deviation of ±3 ppm over this interval, which may necessitate calibration in time-critical applications. For extended reliability in harsh environments, thermal cycling tests should account for the package’s coefficient of thermal expansion mismatch with FR4 substrates. Additionally, solder joint integrity under vibration conditions must be validated, as SMD packaging can introduce mechanical stress points during repeated thermal excursions.

Can the FAR-F6KB-1G9600-B4GB be substituted directly into existing designs using 3.3 V CMOS-compatible oscillators without modifying supply conditioning circuits?: While the FAR-F6KB-1G9600-B4GB operates from a 3.3 V supply and outputs a CMOS-compatible logic signal, its startup transient characteristics differ from typical low-power oscillators. The device draws up to 15 mA during initialization, which exceeds the steady-state current draw of many legacy designs. As a result, bypass capacitors near the power pin must be rated for transient current handling to prevent voltage droop. Direct substitution without verifying transient response on the power rail may lead to false triggering or unstable output states during initial power-up sequences.

What is the impact of harmonic suppression on the FAR-F6KB-1G9600-B4GB when used in a multi-carrier communication system where adjacent channel interference must be minimized?: The FAR-F6KB-1G9600-B4GB achieves second and third harmonic levels below -40 dBc, which significantly reduces out-of-band emissions in multi-carrier environments. This characteristic enables tighter channel spacing without requiring external filtering stages. In practice, this means that systems using this oscillator can reduce the complexity of downstream anti-alias or bandpass filters, resulting in cost savings and improved insertion loss control. The harmonic performance remains consistent across the full operating voltage range, making it suitable for variable-supply designs where traditional filter tuning might otherwise degrade performance.

How does the aging behavior of the FAR-F6KB-1G9600-B4GB affect long-term system calibration intervals in GPS-disciplined timing units?: Over a five-year operational life, the FAR-F6KB-1G9600-B4GB experiences cumulative aging of less than 1 ppm, assuming standard storage and operating conditions. This low drift rate allows for extended calibration cycles—up to one year—in GPS-disciplined clocks without compromising holdover accuracy beyond acceptable limits. However, accelerated aging tests indicate that elevated temperatures accelerate frequency shift; thus, systems deployed in hot climates may require more frequent recalibration. Monitoring the oscillator’s long-term stability through periodic reference comparisons can further extend effective service life while maintaining synchronization integrity.

Is the FAR-F6KB-1G9600-B4GB suitable for use in automotive radar front-end modules subject to ISO 16750-3 shock and vibration testing standards?: The SMD package of the FAR-F6KB-1G9600-B4GB provides adequate mechanical resilience under moderate vibrational loads, but compliance with ISO 16750-3 requirements demands additional design mitigations. During drop and shake tests, the absence of internal wire bonds increases susceptibility to microcracking under extreme transients. Therefore, implementing conformal coating and strategic placement away from high-stress PCB regions improves robustness. Moreover, ensuring proper land pattern design with adequate copper mass enhances solder joint fatigue resistance. While the oscillator itself meets basic industrial grade specifications, full automotive qualification would require environmental chamber validation per AEC-Q200 protocols.

What trade-offs exist between drive level and frequency stability when driving the FAR-F6KB-1G9600-B4GB with non-optimal load capacitance values?: Operating the FAR-F6KB-1G9600-B4GB outside its specified load condition of 12 pF introduces nonlinearities that manifest as increased phase noise and degraded Allan deviation. At 20 pF, the effective drive level drops by 30%, leading to slower settling times and potential start-up failures. Conversely, loading below 8 pF increases spurious content due to excessive excitation energy. These deviations translate into measurable timing errors in synchronous digital systems; for example, a 0.5 ppm instability at 960 MHz corresponds to a 480 ns skew over one millisecond. Thus, precise impedance matching is essential for applications requiring sub-microsecond timing accuracy.

How does the startup time of the FAR-F6KB-1G9600-B4GB influence its usability in battery-powered IoT nodes with duty-cycled wake-up routines?: The FAR-F6KB-1G9600-B4GB exhibits a typical startup time of 8 ms under nominal conditions, which aligns well with modern ultra-low-power microcontrollers capable of deep sleep modes. This duration allows efficient scheduling of sensor sampling and data transmission windows without excessive idle power consumption. Compared to RC-based timing solutions, the oscillator’s deterministic behavior ensures predictable wake-to-data latency, reducing protocol overhead. However, designers must ensure that the total active window accommodates both oscillator warm-up and application processing latency to avoid missed deadlines during periodic transmissions.

What considerations apply when cascading the FAR-F6KB-1G9600-B4GB with a PLL multiplier chain to generate higher frequencies for microwave downconversion?: When multiplying the 960 MHz output of the FAR-F6KB-1G9600-B4GB by factors greater than four, accumulated jitter from both the oscillator and multiplier stages becomes dominant in overall timing error budgets. For instance, multiplying to 3.84 GHz introduces an additional 1.2 ps of RMS jitter per stage, compounding phase noise contributions. Therefore, system architects should limit multiplication ratios or employ low-jitter multipliers with built-in jitter attenuation features. Additionally, careful shielding and ground plane segmentation are required to prevent radiated emissions from switching components from coupling back into the oscillator path, which could destabilize the fundamental tone.

Can the FAR-F6KB-1G9600-B4GB be used interchangeably with TCXOs in satellite telemetry systems where temperature-compensated operation is preferred?: Although both the FAR-F6KB-1G9600-B4GB and typical TCXOs operate over similar temperature ranges, their stabilization mechanisms differ fundamentally. The FAR-F6KB-1G9600-B4GB relies on passive crystal compensation rather than active analog circuitry, resulting in slower response to rapid ambient changes. In satellite applications where diurnal thermal cycling occurs frequently, this lag can introduce transient frequency errors exceeding ±5 ppm before equilibrium is reached. Consequently, while the device offers superior size and power efficiency, TCXOs remain preferable for missions demanding immediate frequency correction upon environmental shifts. Hybrid approaches involving periodic ground-based re-synchronization may bridge this gap effectively.

What are the implications of the FAR-F6KB-1G9600-B4GB’s output rise/fall time specifications on signal integrity in high-speed serial links?: With typical rise and fall times of 3 ns, the FAR-F6KB-1G9600-B4GB produces edge rates compatible with LVDS and CML signaling standards up to 1 Gbps. However, at higher data rates approaching 2.5 Gbps, intersymbol interference (ISI) begins to degrade eye diagram margins due to insufficient bandwidth roll-off. Designers should evaluate the combined effect of oscillator spectral purity and transmission line dispersion when routing the clock trace over FR4 materials longer than 10 cm. Termination strategies and controlled-impedance routing help maintain signal fidelity, but may require equalization at the receiver end to compensate for high-frequency attenuation.

Does the FAR-F6KB-1G9600-B4GB support enable/disable functionality through a dedicated pin, and how does this affect power-down sequencing?: The FAR-F6KB-1G9600-B4GB does not feature an explicit enable pin; instead, power dissipation drops to less than 1 µA when VCC falls below 2.7 V. This passive shutdown mechanism simplifies control logic but introduces uncertainty in turn-off transients. Rapid power cycling may leave residual charge in parasitic capacitances, causing delayed restart behavior inconsistent with system-level timing plans. To mitigate this, designers often implement soft-off sequences via an external switch or MOSFET gate driver. Such arrangements also allow integration of brown-out detection circuits to prevent partial activation states during undervoltage events.

How does the package size of the FAR-F6KB-1G9600-B4GB impact high-density PCB layouts in modular radio platforms?: Measuring 5.0 × 3.2 mm, the FAR-F6KB-1G9600-B4GB fits within tight board real estate constraints typical of SDR (software-defined radio) modules. However, its proximity to other RF components must respect minimum separation distances dictated by FCC Part 15 radiation limits. In densely populated layouts, placing the oscillator near antenna connectors or mixers risks feedback loops unless guard traces or grounded copper fences isolate the crystal node. Furthermore, thermal vias under the package should be avoided to prevent stress concentration during reflow soldering, which could compromise crystal resonator stability.

What are the risks associated with using the FAR-F6KB-1G9600-B4GB in redundant timing architectures where phase alignment between multiple units is required?: In dual-oscillator configurations aiming for phase coherence, even minor differences in initial frequency (±1 ppm) accumulate linearly over time, leading to desynchronization beyond acceptable thresholds after several minutes. The FAR-F6KB-1G9600-B4GB’s temperature coefficient of +0.04 ppm/°C implies that two units mounted on separate PCBs exposed to different heatsinks will diverge rapidly. To maintain lock, either active phase monitoring with feedback correction or shared heat-spreading techniques (e.g., common ground plane with thermal coupling) are necessary. Alternatively, using a single master oscillator with buffered distribution minimizes drift sources altogether.

How does the FAR-F6KB-1G9600-B4GB perform under ESD exposure according to IEC 61000-4-2, and what protection measures are recommended for field-deployable instrumentation?: The FAR-F6KB-1G9600-B4GB passes HBM ESD tests up to ±4 kV, but catastrophic failure modes include irreversible crystal damage from electrostatic discharge near input pins. Field instruments exposed to human contact or cable discharges benefit from series resistors (10–100 Ω) on the output line and TVS diodes clamped to ground rails. Layout-wise, minimizing net lengths and avoiding stub connections reduces susceptibility. Despite its robustness, defense-in-depth strategies remain advisable in uncontrolled environments where grounding practices vary widely.

What role does the FAR-F6KB-1G9600-B4GB play in synchronizing distributed sensor networks employing IEEE 1588 Precision Time Protocol (PTP)?: Within PTP slave nodes, the FAR-F6KB-1G9600-B4GB serves as a disciplined local clock source whose short-term stability ensures accurate timestamping during delay measurement phases. Its low wander specification (<0.1 ppm over 24 hours) preserves synchronization accuracy against network asymmetry errors. However, since PTP ultimately derives timing from grandmaster clocks over Ethernet, the oscillator primarily maintains phase continuity during holdover periods following link loss. For optimal performance, the oscillator’s output should feed a dedicated timestamp engine rather than being shared with general-purpose peripherals to avoid jitter injection from switching activity.

Are there any known counterfeit variants of the FAR-F6KB-1G9600-B4GB circulating in secondary markets, and how can engineers verify authenticity?: Due to its niche frequency and Fujitsu branding, counterfeit versions occasionally appear with altered markings or inferior crystals exhibiting higher aging rates (>5 ppm/year). Verification includes checking laser-etched part numbers against Fujitsu’s official database and performing accelerated life testing under elevated humidity and temperature. Electrical characterization reveals telltale signs: excessive harmonic distortion or poor temperature cycling repeatability indicates substandard construction. Purchasing exclusively from authorized distributors with full-chain traceability documentation reduces risk significantly, especially in safety-critical or regulated industries where component provenance is mandatory.

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Customer Reviews

Evaluation: 10 Articles

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.
Bran***Lewis

May 11, 2026

Compact FPGA with good performance. Suitable for basic signal processing tasks.

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

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