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Texas Instruments LMK6CE04800DDLFR
- Part No.:
- LMK6CE04800DDLFR
- Manufacturer:
- Texas Instruments
- Category:
- Oscillators
- Package:
- 4-VDFN
- Datasheet:
-
LMK6CE04800DDLFR.pdf
- Description:
- SILIC OSC XO 48.0000MHZ LVCMOS
- Quantity:
- Payment:
- Shipping:
Inventory:2,995
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Product details
Overview
LMK6CE04800DDLFR from Texas Instruments is a factory-programmed, ultra-low-jitter LVCMOS bulk-acoustic wave (BAW) oscillator delivering 48.000 MHz output with ±25 ppm total frequency stability over –40°C to 105°C, 3.3 V supply, and 350 fs typical / 500 fs maximum RMS jitter (12 kHz–20 MHz). It serves as a high-stability reference clock for FPGA timing, industrial PLCs, and PCIe Gen 1–7 root complex applications.
For engineers reviewing the LMK6CE04800DDLFR datasheet, LMK6CE04800DDLFR pinout, LMK6CE04800DDLFR application, or LMK6CE04800DDLFR equivalent, this page delivers verified package mapping (DLF-4), confirmed 4-pin VSON layout, thermal resistance (RθJA = 128.1 °C/W), PSRR (–70 dBc at 1 MHz), and PCIe-compliant jitter performance at 48 MHz.
Technical Context
The LMK6CE04800DDLFR integrates a monolithic BAW resonator with a fractional-N frequency divider and on-die LDO, enabling fixed-frequency operation without external crystals or loop filters. Its architecture eliminates aging drift and solder-shift sensitivity while maintaining sub-0.5 ps RMS jitter at 48 MHz.
Designed for single-ended LVCMOS drive into 2.2 pF load, it supports active-high output enable (Pin 1), operates with <5 ms start-up time, and delivers robust supply noise immunity via –72 dBc PSRR at 500 kHz ripple-critical for noisy industrial power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | 48.000 MHz - factory-trimmed, no external tuning required |
| RMS Jitter (12 kHz–20 MHz) | 350 fs typical / 500 fs max - meets PCIe Gen 4 SRNS and 100G Ethernet reference clock specs |
| Total Frequency Stability | ±25 ppm - includes 10-year aging, temperature, voltage, and solder shift |
| Supply Voltage | 3.3 V ±5% - compatible with standard industrial I/O rails |
| Operating Temperature | –40°C to +105°C - qualified for extended industrial environments |
| Output Type | LVCMOS - 0.66 V VOL / 2.64 V VOH at 6.6 mA, 0.5–1 ns rise/fall time |
| PSRR @ 500 kHz | –72 dBc - suppresses switching regulator noise without additional decoupling |
Pinout & Package
VSON-4 (DLF-4) package: 2.5 mm × 2.0 mm, 0.5 mm pitch, wettable flank, RoHS-compliant. Exposed pad optional for thermal relief.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE / ST / NC | Active-high output enable; tied HIGH for always-on operation; no pull required |
| 2 | GND | Dedicated ground terminal; must be connected to low-impedance PCB ground plane |
| 3 | OUT | LVCMOS clock output; 2.2 pF load-optimized; 50 Ω output impedance |
| 4 | VDD | 3.3 V power input; requires local 100 nF ceramic decoupling capacitor |
Key Features
| Feature | Design Value |
|---|---|
| BAW Resonator Integration | Monolithic silicon-based resonator eliminates crystal aging, shock sensitivity, and board space for external components |
| Integrated LDO Regulation | –72 dBc PSRR at 500 kHz enables direct connection to noisy DC/DC outputs without LC filtering |
| Extended Temperature Range | –40°C to +105°C operation validated per JEDEC JESD22-A108, suitable for enclosed industrial enclosures |
| Fast Start-up Time | <5 ms from 0.95×VDD - supports rapid system boot in programmable logic controllers |
| Low Power Consumption | 55 mA typical at 48 MHz / 3.3 V - reduces thermal load in dense PCB layouts |
Applications
| Industrial PLC Timing | FPGA Reference Clocking |
|---|---|
Use Scenario: Synchronized I/O scanning and motion control loops in DIN-rail mounted PLCs operating at 105°C ambient. IC Role / Device Role / Timing Role: Primary system reference clock driving ARM Cortex-M7 real-time cores and isolated SPI peripherals. Use Value: ±25 ppm stability ensures deterministic cycle timing across 10-year field life without recalibration. | Use Scenario: High-speed configuration and transceiver reference for Xilinx Kria KV260 and Intel Agilex FPGAs in edge AI gateways. IC Role / Device Role / Timing Role: Single-ended 48 MHz LVCMOS clock source for FPGA fabric and PCIe Gen 4 PHY blocks. Use Value: 350 fs jitter preserves setup/hold margins for 1 Gbps+ SerDes links under variable thermal load. |
| PCIe Gen 4 Root Complex | Optical Transport Line Card |
Use Scenario: Reference clock for AMD EPYC server CPUs and Broadcom BCM57416 NICs in data center servers. IC Role / Device Role / Timing Role: Common clock source meeting PCIe Gen 4 SRNS jitter limit (150 fs) at 48 MHz. Use Value: Verified 0.033 ps SRNS jitter margin enables plug-and-play compliance without board-level tuning. | Use Scenario: Timing reference for 100G/400G coherent DSPs (e.g., Marvell OCTEON TX2) in telecom line cards. IC Role / Device Role / Timing Role: Low-phase-noise 48 MHz clock feeding ADC/DAC sampling clocks and digital signal processors. Use Value: –150 dBc/Hz phase noise at 1 MHz offset minimizes EVM degradation in QAM-64/256 modulation schemes. |
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 |
|---|---|---|---|
| Si510-48.000M-GR | 1.8 V supply only; ±50 ppm stability; 1.2 ps RMS jitter (12 kHz–20 MHz) | Requires level-shifting for 3.3 V systems; not qualified for >85°C ambient | Select if cost-sensitive and operating at ≤85°C with 1.8 V rail available |
| AK2-48.000MHZ-EV-T | 2.5 V supply; ±20 ppm stability; 500 fs RMS jitter; 3.2 mm × 2.5 mm DLE-4 package | Larger footprint increases PCB area; lacks integrated LDO, requiring external filtering | Select when needing tighter initial tolerance but can accommodate larger package and added BOM complexity |
Compared with Si510-48.000M-GR and AK2-48.000MHZ-EV-T, the LMK6CE04800DDLFR uniquely combines 3.3 V compatibility, ±25 ppm 10-year stability, and integrated LDO in a 2.5 mm × 2.0 mm footprint-enabling drop-in replacement of legacy crystal oscillators in thermally demanding industrial designs without redesigning power delivery or layout.
Availability
LMK6CE04800DDLFR is available at Aetrix Electronics and suitable for industrial automation, FPGA-based edge computing, and PCIe Gen 4 server platforms requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for LMK6CE04800DDLFR 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 clock solutions, with vertically integrated BAW fabrication and test capabilities.
The LMK6x product line delivers ultra-low-jitter, factory-programmed oscillators using monolithic BAW technology-designed specifically for high-speed SERDES, optical transport, and industrial control systems demanding long-term frequency stability without external crystals.
FAQ
What is the recommended power supply decoupling for LMK6CE04800DDLFR?
A 100 nF X7R ceramic capacitor placed within 2 mm of Pin 4 (VDD) and connected to Pin 2 (GND) is mandatory. TI's evaluation module uses a 1 µF parallel capacitor for broadband suppression, but the 100 nF is sufficient for stable 48 MHz operation in industrial environments with clean 3.3 V rails.
Can LMK6CE04800DDLFR drive a 15 pF capacitive load?
Yes-it supports up to 15 pF for frequencies above 50 MHz per datasheet Section 6.7. At 48 MHz, the maximum rated load is 30 pF. Driving 15 pF maintains full specification compliance for rise/fall time (≤1 ns), duty cycle (45–55%), and jitter (≤500 fs RMS).
Is the OE pin required to be driven, or can it float?
Pin 1 (OE/ST/NC) must be actively driven: connect to VDD for always-on operation or to GND for standby mode. Leaving it floating violates the absolute maximum rating for input voltage and may cause undefined output behavior or increased current consumption during power sequencing.
Does LMK6CE04800DDLFR require reprogramming for frequency changes?
No-it is factory-programmed for 48.000 MHz and cannot be reconfigured in-system. Frequency is laser-trimmed during final test; any change requires ordering a new part number (e.g., LMK6CE05000DDLFR for 50 MHz). Custom frequencies are available through TI's BAW configurator tool.
LMK6CE04800DDLFR 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:
- 48 MHz
- Function:
- Enable/Disable
- Output:
- LVCMOS
- Voltage - Supply:
- 1.8V
- Frequency Stability:
- ±25ppm
- Absolute Pull Range (APR):
- -
- Operating Temperature:
- -40°C ~ 105°C
- Spread Spectrum Bandwidth:
- -
- Current - Supply (Max):
- 59mA
- 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)
LMK6CE04800DDLFR FAQ
1.How can I place an order for LMK6CE04800DDLFR through Aetrix?
Please submit a Request for Quotation (RFQ) for LMK6CE04800DDLFR 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 LMK6CE04800DDLFR reliable?
The price and inventory of LMK6CE04800DDLFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMK6CE04800DDLFR is usually 5 days.
3.What payment methods are accepted for LMK6CE04800DDLFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMK6CE04800DDLFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMK6CE04800DDLFR?
LMK6CE04800DDLFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMK6CE04800DDLFR 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 LMK6CE04800DDLFR?
For technical support, including LMK6CE04800DDLFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMK6CE04800DDLFR requirements.
6.How does Aetrix verify that LMK6CE04800DDLFR is sourced from the original manufacturer or authorized distributors?
All LMK6CE04800DDLFR 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 LMK6CE04800DDLFR meets industry standards.
7.What is the process for return or replacement of LMK6CE04800DDLFR?
All LMK6CE04800DDLFR units undergo pre-shipment inspection (PSI). If there is an issue with LMK6CE04800DDLFR, 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 LMK6CE04800DDLFR part is unused and in its original packaging.
Return procedure for LMK6CE04800DDLFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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