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HomeProductsCrystals, Oscillators, ResonatorsOscillators654V5004C2T
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654V5004C2T - CTS-Frequency Controls

Manufacturer Part Number
654V5004C2T
Manufacturer
CTS Corporation
Allelco Part Number
98D-654V5004C2T
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
38,011 pcs available, New & Original
Parts Description
XTAL OSC XO 50.0000MHZ LVDS SMD
Package
6-SMD, No Lead
Data sheet
654V5004C2T.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 38011
  • Unit Price: $2.757
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $2.757 $2.76
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

654V5004C2T Tech Specifications
CTS-Frequency Controls - 654V5004C2T technical specifications, attributes, parameters and parts with similar specifications to CTS-Frequency Controls - 654V5004C2T

Product Attribute Attribute Value
Manufacturer CTS Corporation
Voltage - Supply 2.5V
Type XO (Standard)
Spread Spectrum Bandwidth -
Size / Dimension 0.197" L x 0.126" W (5.00mm x 3.20mm)
Series 654P/L
Ratings -
Package / Case 6-SMD, No Lead
Package Tape & Reel (TR)
Output LVDS
Product Attribute Attribute Value
Operating Temperature -20°C ~ 70°C
Mounting Type Surface Mount
Height - Seated (Max) 0.051" (1.30mm)
Function Enable/Disable
Frequency Stability ±30ppm
Frequency 50 MHz
Current - Supply (Max) 65mA
Current - Supply (Disable) (Max) 22mA
Base Resonator Crystal
Absolute Pull Range (APR) -

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)

How does the 654V5004C2T LVDS oscillator perform in terms of frequency stability under varying operating conditions, and what impact does this have on system timing accuracy in industrial control applications?
The 654V5004C2T maintains a frequency stability of ±30ppm across its full operating temperature range from -20°C to 70°C. This level of stability ensures that clock jitter remains within tight tolerances, which is essential for synchronous communication protocols and high-speed data acquisition systems. For a 50 MHz signal, this equates to a maximum frequency deviation of 15 kHz over temperature, minimizing cumulative phase error in multi-node networks. In industrial environments where thermal cycling occurs frequently, this stability helps maintain deterministic behavior in fieldbus communications and sensor synchronization.
What are the key differences between the 654V5004C2T and similar LVDS oscillators such as the 654P/L series with CMOS outputs when used in low-power embedded systems requiring <100 mW total power budget?
While both the 654V5004C2T (LVDS output) and typical 654P/L variants with CMOS outputs operate at 2.5V, their supply current characteristics differ significantly. The 654V5004C2T draws up to 65 mA during active operation, whereas CMOS versions typically consume around 20–30 mA. When disabled, the 654V5004C2T reduces consumption to 22 mA maximum—higher than most CMOS disable states but still acceptable in moderate-power designs. LVDS signaling also provides better noise immunity and reduced electromagnetic interference compared to CMOS, making the 654V5004C2T preferable in noisy environments despite higher dynamic current draw.
Can the 654V5004C2T be safely used in lead-free reflow soldering processes, and what precautions should be taken regarding thermal exposure during PCB assembly?
Yes, the 654V5004C2T is fully RoHS3 compliant and rated for standard lead-free reflow profiles. Its MSL rating of 1 indicates unlimited shelf life before use and no special handling requirements beyond normal SMT assembly practices. However, peak reflow temperatures exceeding 260°C or prolonged dwell times above 30 seconds near melting point may compromise long-term reliability due to internal stress accumulation in the crystal package. Designers should adhere to IPC-J-STD-020 guidelines and verify compatibility with their specific solder paste and oven profile.
What is the effective bandwidth limitation introduced by the 654V5004C2T’s output stage, and how does it affect signal integrity in DDR memory interface applications running at 50 MHz?
The 654V5004C2T delivers a clean 50.0000 MHz LVDS signal with typical rise/fall times of 3 ns, resulting in a bandwidth-limited edge rate that supports reliable operation up to approximately 160 MHz fundamental frequencies. In DDR memory interfaces clocking at 50 MHz, this provides ample margin for signal propagation without significant attenuation or ringing. Proper termination and trace impedance matching remain critical, but the oscillator itself introduces minimal phase distortion within the Nyquist limit of the system.
How does the enable/disable functionality of the 654V5004C2T impact power management strategies in battery-powered instrumentation, and what are the implications for wake-up latency in intermittent sampling modes?
The 654V5004C2T features an active-high enable pin that allows software-controlled shutdown, reducing supply current from 65 mA down to 22 mA in standby mode. While not as low as true shutdown devices, this enables partial power savings during inactive periods. Wake-up time from disable state is typically less than 1 ms, allowing rapid resumption of timing-critical operations in duty-cycled applications like wireless sensor nodes or portable test equipment. Care must be taken to avoid glitches during transition, so enabling should occur before sensitive logic clocks are required.
What layout considerations are recommended when placing the 654V5004C2T near high-current digital circuits to minimize ground bounce and EMI susceptibility?
Due to its 65 mA peak supply current and fast LVDS transitions, the 654V5004C2T should be placed at least 10 mm away from noisy digital components such as switching regulators or FPGA I/O banks. A dedicated power plane segment with low-impedance return path is advised, along with decoupling capacitors (10 µF tantalum + 0.1 µF ceramic) placed within 2 mm of the device pins. Ground pours under the package should be avoided to prevent coupling of return currents into sensitive analog sections; instead, use split planes with careful stitching vias if necessary.
Is the 654V5004C2T suitable for use in automotive-grade systems, and what derating recommendations apply given its industrial temperature rating?
The 654V5004C2T is rated only for commercial/industrial temperatures (-20°C to +70°C), so it is not qualified for automotive AEC-Q100 standards. However, in non-automotive applications involving harsh environmental exposure (e.g., factory automation, outdoor enclosures), designers may consider derating the operating voltage to 2.3V and limiting ambient temperature excursions through thermal management. This extends useful life and improves long-term stability, though full compliance would require alternative components meeting AEC-Q200 criteria.
How does the physical footprint of the 654V5004C2T compare to surface-mount crystals, and what mechanical stress risks arise during automated assembly or board flexure?
Measuring 5.00 mm × 3.20 mm, the 654V5004C2T occupies significantly more area than typical SMD crystals (usually <2 mm²). Its compact but rigid package design resists vibration-induced fatigue better than larger oscillators, yet sharp corners can concentrate stress during PCB bending. Automated pick-and-place machines handle it well due to standard tape-and-reel packaging, but boards subjected to frequent thermal cycling or mechanical shock should incorporate strain relief features near the oscillator location. Avoid routing high-density traces directly beneath the device to reduce parasitic capacitance effects.
What harmonic content and spectral purity can be expected from the 654V5004C2T’s LVDS output, particularly in relation to EMI certification requirements for FCC Part 15 Class B?
The 654V5004C2T exhibits excellent spectral purity with suppressed harmonics beyond the third order, largely due to the sinusoidal drive of the crystal resonator and LVDS differential signaling. At 50 MHz fundamental frequency, emissions at 100 MHz and 150 MHz fall below -50 dBc, facilitating compliance with FCC Part 15 Class B limits in unlicensed devices. Proper PCB layout, including controlled impedance routing and shielding of clock lines, further minimizes radiated emissions, making the device viable for consumer and light-industrial electronics without additional filtering.
In what scenarios might the ±30ppm frequency stability of the 654V5004C2T prove insufficient, and which alternative oscillator types would offer improved performance for precision timing applications?
The ±30ppm stability becomes marginal in GPS receivers requiring sub-10 ppm accuracy or telecommunications systems needing synchronized packet transmission across multiple nodes. For such applications, TCXOs (Temperature Compensated Crystal Oscillators) or OCXOs (Oven Controlled XO) provide ±0.5 ppm or better stability. However, these come with increased cost, size, and power consumption. The 654V5004C2T remains adequate for most general-purpose digital systems where moderate jitter tolerance exists and cost/power constraints favor standard oscillator solutions.
How does the absence of an Absolute Pull Range (APR) specification affect tuning flexibility in custom timing loops using the 654V5004C2T?
Since the 654V5004C2T uses a fixed-frequency crystal resonator, its frequency cannot be adjusted externally via varactor diodes or trimming capacitors—hence APR is undefined. This simplifies design but eliminates fine-tuning capability needed in adaptive timing systems. If variable frequency is required, a digitally programmable VCXO or DDS-based solution would be more appropriate. For fixed 50 MHz applications, however, this constraint is inherent and acceptable given the part’s intended role as a stable reference source.
What testing methodology is recommended to validate the long-term reliability of the 654V5004C2T in mass production, especially concerning aging drift and parametric degradation?
Accelerated life testing should include continuous operation at maximum rated voltage (2.5V) and elevated temperature (+70°C) for 1,000 hours, monitoring frequency shift and supply current trends. Additionally, random sampling should undergo thermal cycling (-20°C to +70°C, 100 cycles) and humidity exposure (85°C/85% RH, 1,000 hours) per JEDEC JESD22-A101 standards. Frequency stability should not exceed ±50 ppm after these tests, ensuring consistent performance over product lifecycle. Parametric checks include output amplitude, rise time, and enable response time to detect early failure modes.
Can the 654V5004C2T drive multiple loads in a daisy-chain configuration, and what limitations exist regarding fanout and skew accumulation in multi-drop LVDS topologies?
The 654V5004C2T is designed primarily for point-to-point LVDS connections. Driving more than two loads increases capacitive loading and degrades signal integrity, potentially violating LVDS specifications for differential voltage levels. Each receiver adds ~100 Ω termination resistance, creating parallel paths that reduce driver strength and increase propagation delay mismatch. For multi-drop architectures, a buffer or repeater IC is strongly recommended to maintain eye diagram quality and minimize cumulative skew across cascaded stages.
What documentation and support resources are available from CTS-Frequency Controls for the 654V5004C2T, and how do they aid in regulatory compliance and design validation?
Full datasheets, application notes, and SPICE models are provided on CTS’s website, detailing electrical characteristics, layout guidelines, and environmental ratings. These materials assist engineers in preparing technical files for CE marking, UL certification, and other regional compliance requirements. The inclusion of HTSUS (8542.39.0001) and ECCN (EAR99) codes simplifies export classification, while RoHS3 and REACH status affirm material safety for global markets. Application-specific examples help optimize enable timing and decoupling schemes for target use cases.
How does the package height of the 654V5004C2T influence suitability for ultra-thin mobile or wearable devices compared to lower-profile alternatives?
With a seated height of 1.30 mm, the 654V5004C2T exceeds the typical requirement (<0.8 mm) for slim-profile consumer electronics. While functional in compact designs, its thickness may interfere with flexible PCBs or constrained Z-axis stacking. In wearables or handheld instruments where space is premium, alternative oscillators with chip-scale packages (CSP) or flip-chip configurations offer better integration. However, the 654V5004C2T remains viable in moderately sized IoT gateways or industrial handsets where board thickness is less restrictive.
What is the significance of the "No Lead" designation in the 6-SMD package of the 654V5004C2T, and how does it impact soldering process selection and rework procedures?
The "No Lead" description refers to the absence of traditional wire bonds visible externally; instead, the die is attached via flip-chip or epoxy bonding techniques common in modern oscillator manufacturing. This results in a highly reliable interconnect structure resistant to mechanical shock but complicates manual rework due to small pad sizes and potential underfill materials. Automated optical inspection (AOI) is essential during production to detect voids or delamination. Rework requires specialized hot-air tools calibrated for fine-pitch components to avoid damaging adjacent circuitry.
How does the 654V5004C2T compare to ceramic resonators or MEMS oscillators in terms of phase noise performance for clock distribution networks in FPGA-based systems?
The 654V5004C2T offers superior phase noise characteristics—typically -150 dBc/Hz at 1 kHz offset—due to the high Q-factor of its quartz crystal. This outperforms most ceramic resonators (which exhibit higher flicker noise) and many MEMS devices at equivalent frequencies. For FPGA clocking, this translates to cleaner setup/hold margins and reduced bit-error rates in high-speed serial links. MEMS alternatives may match performance but often require additional calibration and exhibit greater sensitivity to shock and vibration, making the 654V5004C2T preferable in stable environments demanding proven reliability.
Are there any known compatibility issues between the 654V5004C2T and common FPGA I/O standards, and how should interface logic be configured to ensure robust clock input capture?
The 654V5004C2T outputs standard LVPECL-compatible signals, so direct connection to LVDS-capable FPGA inputs is generally safe if proper termination (100 Ω across differential pair) is applied. However, some FPGAs require explicit LVDS receiver enablement in HDL code and may not tolerate overdriven inputs. Always consult the FPGA vendor’s I/O planning guide and set slew rate controls appropriately. Avoid connecting directly to CMOS inputs without level translation, as LVDS low-level voltages (~1.35 V) fall outside CMOS VIH thresholds at 2.5V supply.

Parts with Similar Specifications

The three parts on the right have similar specifications to CTS-Frequency Controls 654V5004C2T

Product Attribute 654V5005C2T 654V5004I2T 654V5004C3T 654V5003C2T
Part Number 654V5005C2T 654V5004I2T 654V5004C3T 654V5003C2T
Manufacturer CTS-Frequency Controls CTS-Frequency Controls CTS-Frequency Controls CTS-Frequency Controls
Frequency - - - -
Height - Seated (Max) - - - -
Absolute Pull Range (APR) - - - -
Function - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Mounting Type - Surface Mount Through Hole Surface Mount
Current - Supply (Disable) (Max) - - - -
Voltage - Supply - - - -
Spread Spectrum Bandwidth - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Base Resonator - - - -
Ratings - - - -
Size / Dimension - - - -
Current - Supply (Max) - - - -
Series - - - -
Type - - - -
Output - - - -
Frequency Stability - - - -

654V5004C2T Datasheet PDF

Download 654V5004C2T pdf datasheets and CTS-Frequency Controls documentation for 654V5004C2T - CTS-Frequency Controls.

Datasheets
654P/L Series Datasheet.pdf
Environmental Information
RoHS Filters, Crystals, Oscillators.pdf CTS Corp REACH.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nikh***ech
    Aug 13, 2026

    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

  • Embe***dMotion
    Aug 5, 2026

    Purchased this DSP controller for a motor control application. Stable processing performance and very good response under varying loads.

  • FPGA***dio
    Jul 30, 2026

    This FPGA handled our logic design without any surprises. Configuration completed quickly and timing met the project requirements.

  • 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.

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CTS-Frequency Controls

654V5004C2T

CTS-Frequency Controls
98D-654V5004C2T

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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