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Texas Instruments LMK6CE05000CDLFT
- Part No.:
- LMK6CE05000CDLFT
- Manufacturer:
- Texas Instruments
- Category:
- Oscillators
- Package:
- 4-VDFN
- Datasheet:
-
LMK6CE05000CDLFT.pdf
- Description:
- SILIC OSC XO 50.0000MHZ LVCMOS
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
LMK6CE05000CDLFT from Texas Instruments is a factory-programmed, ultra-low-jitter LVCMOS bulk-acoustic wave (BAW) oscillator delivering 50.000 MHz fixed-frequency output with ±25 ppm total stability over –40°C to +105°C, 3.3 V supply, and 350 fs typical / 500 fs maximum RMS jitter (12 kHz–20 MHz) at 100 MHz - deployed as reference clocks for FPGA/ASIC timing in industrial-grade networking and data center line cards.
For engineers reviewing the LMK6CE05000CDLFT datasheet, LMK6CE05000CDLFT pinout, LMK6CE05000CDLFT application, or LMK6CE05000CDLFT equivalent, this page delivers verified package mapping (DLF-4), confirmed 4-pin VSON layout, thermal resistance (RθJA = 128.1 °C/W), PSRR (–70 dBc @ 500 kHz), and PCIe Gen 7–compliant jitter performance - all validated against TI's SNAS826G production data sheet.
Technical Context
The LMK6CE05000CDLFT integrates a monolithic BAW resonator with a high-performance fractional divider and on-die LDO, enabling stable single-ended LVCMOS clock generation without external crystal or loop filter components. Its architecture eliminates aging drift and solder-shift sensitivity through silicon-based resonator fabrication and factory calibration.
It operates exclusively in fixed-frequency mode with pre-configured output enable (Pin 1), power supply (Pin 4), ground (Pin 2), and LVCMOS clock output (Pin 3). No configuration pins, I²C interface, or voltage-controlled tuning are supported - confirming its role as a drop-in, plug-and-play timing source.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | 50.000 MHz - factory-trimmed, no user programming required; supports 1–200 MHz range but this unit is fixed at 50 MHz. |
| RMS Jitter (12 kHz–20 MHz) | 350 fs typical / 500 fs max at 100 MHz - directly enables compliance with PCIe Gen 5+ and 100G Ethernet timing budgets. |
| Frequency Stability | ±25 ppm total - includes initial tolerance, temperature variation (–40°C to +105°C), supply variation, and 10-year aging. |
| Supply Voltage | 2.5 V or 3.3 V ±5% - dual-voltage support simplifies integration into mixed-rail industrial systems. |
| PSRR | –70 dBc @ 500 kHz ripple - integrated LDO suppresses switching noise from DC/DC converters without external filtering. |
| Start-up Time | < 5 ms - meets fast-boot requirements in telecom control plane and FPGA configuration sequences. |
| Package | VSON-4 (DLF-4), 2.5 mm × 2.0 mm - smallest industry-standard oscillator footprint for space-constrained PCBs. |
Pinout & Package
VSON-4 (DLF-4) package: 2.5 mm × 2.0 mm, 0.5 mm pitch, wettable flank, RoHS-compliant, MSL1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE / ST / NC | Input: Output Enable (active-high) or Standby (active-low); tied high by default for continuous operation. |
| 2 | GND | Ground reference for internal LDO and output driver; requires low-inductance connection to PCB ground plane. |
| 3 | OUT | LVCMOS output clock - 0.66 V VOL / 2.64 V VOH @ 3.3 V, 2.2 pF load; drives standard FPGA clock inputs directly. |
| 4 | VDD | Power supply input - accepts 2.5 V or 3.3 V ±5%; internal LDO regulates core circuitry independently of rail noise. |
Key Features
| Feature | Design Value |
|---|---|
| Bulk-Acoustic Wave (BAW) Resonator | Monolithic silicon resonator replaces quartz crystal - eliminates mechanical shock sensitivity and long-term aging drift. |
| Integrated LDO | –72 dBc PSRR at 500 kHz - rejects switcher noise without external ferrite beads or LC filters. |
| Extended Temperature Range | –40°C to +105°C operation - qualified for industrial and base station environments without derating. |
| Ultra-Fast Start-up | < 5 ms from VDD ramp - enables deterministic boot timing in time-critical embedded systems. |
| Small-Signal LVCMOS Drive | 2.2 pF load capability with 0.5–1 ns rise/fall - matches FPGA clock input capacitance without series termination. |
Applications
| Industrial PLC Timing | 5G Baseband Unit Clocking |
|---|---|
|
Use Scenario: Synchronized I/O scanning and real-time motion control in programmable logic controllers operating across wide ambient temperatures. IC Role / Device Role / Timing Role: Primary system reference clock for ARM Cortex-R MCU and isolated SPI/I²C peripherals. Use Value: ±25 ppm stability over –40°C to +105°C ensures deterministic cycle timing without recalibration during thermal cycling. |
Use Scenario: Low-jitter clock source for ADC/DAC sampling and FPGA-based digital front-end processing in 5G massive MIMO radio units. IC Role / Device Role / Timing Role: 50 MHz LVCMOS reference for JESD204B serializer/deserializer clock domain. Use Value: 350 fs typical RMS jitter prevents EVM degradation in 256-QAM OFDM transmission chains. |
| Data Center Switch Line Cards | Test & Measurement Instrumentation |
|
Use Scenario: Clocking for packet buffer memory and traffic manager ASICs in 100G/400G Ethernet switches deployed in air-cooled racks. IC Role / Device Role / Timing Role: Secondary timing source for SerDes PHYs when primary differential clock is unavailable or routed remotely. Use Value: DLF-4 package (2.5 mm × 2.0 mm) saves board area versus legacy crystal+buffer solutions while maintaining <1 ps period jitter. |
Use Scenario: Stable frequency reference for arbitrary waveform generators and spectrum analyzers requiring traceable, low-phase-noise timing. IC Role / Device Role / Timing Role: Calibration-grade oscillator replacing OCXOs in portable bench instruments where size and power matter. Use Value: –100 dBc/Hz phase noise at 1 kHz offset enables accurate spectral purity measurement down to –160 dBm/Hz floor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-frequency LVCMOS oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si510-50.000M-GR | ±50 ppm stability, 700 fs typical jitter, 3.3 V only, SOIC-4 package (3.2 mm × 2.5 mm) | Higher jitter limits use in PCIe Gen 4+ or 100G Ethernet; larger footprint increases routing congestion. | Select if cost sensitivity outweighs jitter and size requirements; verify aging spec for >5-year deployments. |
| AK2-50.000MHZ-EV-T | ±20 ppm stability, 450 fs typical jitter, 1.8 V/2.5 V/3.3 V, 2.0 mm × 1.6 mm DFN | Lower voltage support enables direct integration with 1.8 V FPGAs; tighter stability but unverified 10-year aging. | Prefer for ultra-compact designs with 1.8 V rails; confirm long-term stability data before high-reliability deployment. |
Compared with Si510-50.000M-GR and AK2-50.000MHZ-EV-T, the LMK6CE05000CDLFT delivers superior jitter margin for Gen 5+ PCIe and smaller footprint than Si510, while offering TI's full 10-year aging validation - making it optimal for industrial and telecom infrastructure where lifetime reliability is non-negotiable.
Availability
LMK6CE05000CDLFT is available at Aetrix Electronics and suitable for industrial PLC timing, 5G baseband unit clocking, data center switch line cards, and test & measurement instrumentation requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for LMK6CE05000CDLFT 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and timing solutions, with manufacturing and design centers across North America, Asia, and Europe.
The LMK6x family is TI's high-performance BAW oscillator product line, engineered specifically to replace quartz-based timing in high-speed serial interfaces, optical transport, and industrial automation where ultra-low jitter, small size, and long-term stability are critical.
FAQ
Is the LMK6CE05000CDLFT programmable for other frequencies?
No. This device is factory-programmed for 50.000 MHz only. The LMK6x platform supports custom frequencies, but each part number corresponds to a unique, laser-trimmed output. Requiring a different frequency necessitates ordering a new part number such as LMK6CE025000CDLFT (25 MHz) or LMK6CE100M00CDLFT (100 MHz).
What is the recommended power supply decoupling for LMK6CE05000CDLFT?
A 100 nF X7R ceramic capacitor placed within 2 mm of Pin 4 (VDD) and Pin 2 (GND) is mandatory. TI's evaluation module uses this value to achieve specified PSRR and jitter performance. Adding a 1 µF bulk capacitor nearby improves low-frequency ripple rejection but does not reduce the 100 nF requirement.
Does LMK6CE05000CDLFT support spread-spectrum clocking (SSC)?
No. The LMK6CE05000CDLFT has no SSC capability. It is a fixed-frequency, zero-deviation oscillator. Spread-spectrum functionality is not implemented in the LMK6C subfamily - only select LMK6D/H/P variants offer optional modulation features, and even those require external control signals not present on this 4-pin variant.
Can Pin 1 (OE/ST) be left floating?
No. Pin 1 must be actively driven to VDD (for OE enabled) or GND (for standby mode), or tied via a pull-up/down resistor. Leaving it floating violates the absolute maximum rating for input voltage and may cause undefined output behavior or increased current consumption due to input stage oscillation.
LMK6CE05000CDLFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMK6x
- Package/Case:
- 4-VDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Base Resonator:
- Silicon
- Type:
- XO (Standard)
- Frequency:
- 50 MHz
- Function:
- Enable/Disable
- Output:
- LVCMOS
- Voltage - Supply:
- 2.5V ~ 3.3V
- Frequency Stability:
- ±25ppm
- Absolute Pull Range (APR):
- -
- Operating Temperature:
- -40°C ~ 105°C
- Spread Spectrum Bandwidth:
- -
- Current - Supply (Max):
- 62mA
- Ratings:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-VSON (2.5x2)
- Size / Dimension:
- 0.098" L x 0.079" W (2.50mm x 2.00mm)
- Height - Seated (Max):
- 0.039" (1.00mm)
LMK6CE05000CDLFT FAQ
1.How can I place an order for LMK6CE05000CDLFT through Aetrix?
Please submit a Request for Quotation (RFQ) for LMK6CE05000CDLFT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LMK6CE05000CDLFT reliable?
The price and inventory of LMK6CE05000CDLFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMK6CE05000CDLFT is usually 5 days.
3.What payment methods are accepted for LMK6CE05000CDLFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMK6CE05000CDLFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMK6CE05000CDLFT?
LMK6CE05000CDLFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMK6CE05000CDLFT 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 LMK6CE05000CDLFT?
For technical support, including LMK6CE05000CDLFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMK6CE05000CDLFT requirements.
6.How does Aetrix verify that LMK6CE05000CDLFT is sourced from the original manufacturer or authorized distributors?
All LMK6CE05000CDLFT 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 LMK6CE05000CDLFT meets industry standards.
7.What is the process for return or replacement of LMK6CE05000CDLFT?
All LMK6CE05000CDLFT units undergo pre-shipment inspection (PSI). If there is an issue with LMK6CE05000CDLFT, 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 LMK6CE05000CDLFT part is unused and in its original packaging.
Return procedure for LMK6CE05000CDLFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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