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HomeProductsCrystals, Oscillators, ResonatorsOscillators654V5403I3T
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654V5403I3T - CTS-Frequency Controls

Manufacturer Part Number
654V5403I3T
Manufacturer
CTS Corporation
Allelco Part Number
98D-654V5403I3T
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
40,065 pcs available, New & Original
Parts Description
XTAL OSC XO 54.0000MHZ LVDS SMD
Package
6-SMD, No Lead
Data sheet
654V5403I3T.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 40065
  • Unit Price: $2.73
  • Subtotal: $0.00

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1+ $2.73 $2.73
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

654V5403I3T Tech Specifications
CTS-Frequency Controls - 654V5403I3T technical specifications, attributes, parameters and parts with similar specifications to CTS-Frequency Controls - 654V5403I3T

Product Attribute Attribute Value
Manufacturer CTS Corporation
Voltage - Supply 3.3V
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 -40°C ~ 85°C
Mounting Type Surface Mount
Height - Seated (Max) 0.051" (1.30mm)
Function Enable/Disable
Frequency Stability ±50ppm
Frequency 54 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)

What are the key electrical characteristics of the 654V5403I3T oscillator that influence its suitability for high-speed digital systems?
The 654V5403I3T operates at a nominal frequency of 54 MHz with LVDS output, making it suitable for high-speed data transmission applications such as HDMI, DisplayPort, or embedded vision systems. Its ±50 ppm frequency stability ensures reliable clocking across the -40°C to 85°C operating range, minimizing timing skew in multi-device environments. The 3.3V supply voltage aligns with modern low-voltage logic families, reducing power overhead compared to higher-voltage alternatives. With a maximum supply current of 65 mA in active mode and 22 mA when disabled, the device balances performance with power efficiency—critical in battery-powered or thermally constrained designs.
How does the 654V5403I3T compare to other LVDS oscillators in terms of footprint and integration complexity for space-constrained PCB layouts?
The 654V5403I3T features a compact 6-SMD, no-lead package measuring 5.00 mm × 3.20 mm, which is among the smallest footprints available for functional LVDS oscillators at this frequency. Compared to larger ceramic-packaged counterparts (e.g., 7×5 mm or 9×7 mm packages), it enables higher component density on multilayer PCBs. However, unlike crystal-only solutions where an external PLL or buffer IC must be added, this integrated XO eliminates discrete components but requires precise layout due to its surface-mount nature. When compared to similar-frequency LVDS oscillators from competitors like Abracon or TXC, the 654V5403I3T offers comparable size but may have slightly lower drive strength, necessitating careful impedance matching in long traces.
Can the 654V5403I3T be used in automotive-grade temperature applications, and what design considerations apply if extending beyond its specified range?
No, the 654V5403I3T is rated only from -40°C to 85°C and lacks formal automotive qualification (such as AEC-Q200). While it may operate temporarily outside this range, frequency stability degrades significantly below -20°C or above 70°C due to crystal drift and oscillator circuit sensitivity. For automotive use, a part with extended industrial (-40°C to +105°C) or full automotive (-40°C to +125°C) rating should be selected instead. If forced into non-specified conditions, additional thermal management, calibration routines, or redundancy may be required to maintain system integrity.
What impact does the enable/disable function of the 654V5403I3T have on system-level power consumption during idle periods?
The enable/disable pin allows the oscillator to enter a low-power state, reducing supply current from up to 65 mA to just 22 mA—effectively cutting dynamic power by approximately 66%. This is particularly valuable in always-on systems with intermittent data bursts, such as sensor nodes or display interfaces that wake periodically. During shutdown, output remains inactive but stable; re-enabling typically restores signal within microseconds. Designers should account for startup time (~1 ms typical) to avoid glitches in downstream logic requiring immediate clock availability.
How does the frequency stability specification of ±50 ppm affect synchronization accuracy in a multi-clock domain system using the 654V5403I3T?
Over the full operating temperature range, ±50 ppm equates to a worst-case frequency deviation of ±2.7 kHz from the nominal 54 MHz. At this rate, accumulated phase error over one second can reach ±27 μs—significant enough to violate setup/hold times in high-speed serial links like LVDS-based camera modules. In synchronous systems relying on precise phase alignment, this necessitates either tighter environmental control, periodic resynchronization, or use of a disciplined oscillator architecture. Alternatively, systems employing FIFO buffers or elastic stores can tolerate moderate jitter but require margining beyond datasheet guarantees.
What precautions should be taken when routing the output trace for the 654V5403I3T to minimize EMI and crosstalk?
Due to the high slew rates inherent in LVDS signaling, the differential pair routed from the 654V5403I3T should maintain controlled impedance (typically 100 Ω) using matched-length traces on inner layers adjacent to solid ground planes. Keep traces short (<10 cm preferred) and avoid vias near the output unless absolutely necessary. Terminate the line properly at the receiver end to prevent reflections. Avoid parallel routing with noisy signals such as switching regulators or digital buses. Ground return paths under the oscillator footprint to reduce loop area and radiation.
Is the 654V5403I3T compatible with automated assembly processes, and what solder reflow profile considerations apply?
Yes, the 654V5403I3T is packaged in Tape & Reel (TR) format and has MSL 1 classification, indicating unlimited shelf life and compatibility with standard SMT lines. It supports lead-free soldering per RoHS3 compliance. However, due to its thin height (1.30 mm max), designers should verify that their reflow profile does not exceed peak temperatures above 260°C or dwell times longer than 60 seconds above 250°C to avoid mechanical stress on the package or crystal element. Consult CTS-Frequency Controls’ recommended profile for optimal reliability.
How does the absence of spread spectrum modulation in the 654V5403I3T affect electromagnetic compliance compared to alternative oscillators?
Without spread spectrum clocking (SSC), the 654V5403I3T emits concentrated spectral energy at exactly 54 MHz and its harmonics, increasing susceptibility to conducted emissions testing failures in FCC or CE regulatory environments. Systems integrating this oscillator may require additional filtering (LC networks, ferrites) or shielding to meet Class B limits. In contrast, SSC-modulated parts smear energy across a bandwidth, easing compliance margins. Therefore, in EMC-sensitive applications, supplemental attenuation measures are often unavoidable with this device.
What are the implications of using the 654V5403I3T in a redundant or dual-clock architecture?
In redundant systems, two instances of the 654V5403I3T could provide backup timing, but their individual ±50 ppm stabilities do not guarantee correlation. Even minor frequency mismatches would cause eventual desynchronization unless disciplined by a master reference. Additionally, enabling/disabling one oscillator while keeping another active introduces transient phase steps that may disrupt downstream logic. Synchronization circuits such as PLLs with holdover capability are better suited for redundancy scenarios than relying solely on discrete oscillators like the 654V5403I3T.
How does the package size of the 654V5403I3T influence thermal performance under continuous operation?
The small 5.00 mm × 3.20 mm footprint limits heat dissipation capacity, resulting in elevated junction temperatures under sustained load. Given a maximum supply current of 65 mA at 3.3 V, theoretical power dissipation reaches ~214 mW, though actual values depend on duty cycle and ambient conditions. Prolonged operation near 85°C ambient may push internal components into marginal reliability zones. Adequate copper pour and airflow improve cooling, but designers should avoid stacking high-power components directly adjacent to the oscillator to prevent localized heating effects.
Can the 654V5403I3T replace a crystal plus external buffer combination in a cost-sensitive design without sacrificing performance?
Yes, integrating the oscillator function simplifies board layout and reduces BOM count compared to discrete crystals with external CMOS buffers. The 654V5403I3T provides LVDS directly, eliminating extra conversion stages. However, cost savings must be weighed against reduced flexibility—discrete approaches allow independent tuning, aging compensation, or replacement of individual elements. For fixed-function systems where stability and integration outweigh customization needs, the 654V5403I3T offers a compelling value proposition with minimal trade-offs in most consumer or industrial applications.
What role does moisture sensitivity level (MSL 1) play in storage and handling of the 654V5403I3T before PCB assembly?
MSL 1 indicates the 654V5403I3T is not sensitive to moisture absorption and can be stored indefinitely under normal conditions without baking prior to reflow. This simplifies inventory logistics and reduces processing costs in high-volume manufacturing. Unlike MSL 2–4 devices requiring dry packaging and periodic desiccant replenishment, MSL 1 parts like this one pose negligible risk of popcorning during soldering, even after prolonged exposure to ambient humidity during shipping or warehouse storage.
How does the enable/disable pin interact with system reset sequences, and what initialization timing should be observed?
The enable/disable pin acts asynchronously relative to power-up rails, so asserting disable early in boot can suppress spurious outputs during unstable supply conditions. However, leaving it floating risks undefined states. Designers should pull the pin high via a resistor (e.g., 10 kΩ) to ensure default enable behavior unless actively managed by firmware. During reset cycles, ensure the pin transitions cleanly before power stabilizes to avoid latch-up or oscillation instability. Typical initialization delay between VCC reaching 90% of 3.3 V and enabling should exceed 100 μs to allow internal biasing to settle.
What are the long-term reliability concerns associated with the crystal resonator inside the 654V5403I3T over its operational lifespan?
Crystal aging—typically ±3 ppm/year under controlled conditions—can compound with initial tolerance and temperature-induced drift, gradually shifting frequency away from target. Over five years, this might accumulate to ±15–20 ppm total shift, pushing the 654V5403I3T beyond its ±50 ppm spec if already near limits. While still within functional bounds for many applications, critical timing budgets (e.g., USB 2.0 Full Speed requires ±0.25% = ±135 ppm) remain safe, but stricter protocols may degrade over time. Periodic recalibration or selection of lower-aging crystals (e.g., SC-cut) is advisable for mission-critical deployments.
How does the choice of output type (LVDS vs. HCSL or CMOS) affect interoperability when substituting the 654V5403I3T in existing designs?
LVDS output levels (differential swing ~350 mV) are incompatible with HCSL or CMOS inputs without level-shifting circuitry. Attempting direct connection to CMOS logic may result in signal degradation due to insufficient noise margin, while feeding LVDS into an HCSL receiver could damage inputs if overdriven. The 654V5403I3T’s LVDS interface demands receivers designed for LVCMOS-compatible LVDS standards. Substitution requires verifying both electrical compatibility and protocol support at the destination IC; otherwise, redesign of termination networks or input stages becomes necessary.
What environmental certifications (RoHS3, REACH, ECCN) indicate about the global usability of the 654V5403I3T?
RoHS3 compliance ensures halogen-free materials and restricted substance thresholds (including PFAS exemptions) meet EU directives, facilitating market access across Europe. REACH Unaffected status implies no SVHCs (Substances of Very High Concern) above 0.1% weight in the device, simplifying export documentation. ECCN EAR99 classification means it’s not subject to strict U.S. export controls, allowing broad distribution. These attributes collectively support deployment in regulated industries such as medical imaging, telecommunications, and defense without additional licensing hurdles.

Parts with Similar Specifications

The three parts on the right have similar specifications to CTS-Frequency Controls 654V5403I3T

Product Attribute 654V5404I3T 654V5403I2T 654V5403C3T 654V5403C2T
Part Number 654V5404I3T 654V5403I2T 654V5403C3T 654V5403C2T
Manufacturer CTS-Frequency Controls CTS-Frequency Controls CTS-Frequency Controls CTS-Frequency Controls
Voltage - Supply - - - -
Series - - - -
Frequency Stability - - - -
Current - Supply (Disable) (Max) - - - -
Absolute Pull Range (APR) - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Size / Dimension - - - -
Output - - - -
Type - - - -
Base Resonator - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Frequency - - - -
Ratings - - - -
Current - Supply (Max) - - - -
Spread Spectrum Bandwidth - - - -
Function - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Height - Seated (Max) - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad

654V5403I3T Datasheet PDF

Download 654V5403I3T pdf datasheets and CTS-Frequency Controls documentation for 654V5403I3T - CTS-Frequency Controls.

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

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Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
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CTS-Frequency Controls

654V5403I3T

CTS-Frequency Controls
98D-654V5403I3T

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