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Texas Instruments LMK6CE05000CDLER
- Part No.:
- LMK6CE05000CDLER
- Manufacturer:
- Texas Instruments
- Category:
- Oscillators
- Package:
- 4-VDFN
- Datasheet:
-
LMK6CE05000CDLER.pdf
- Description:
- Low-jitter, high-performance, bu
- Quantity:
- Payment:
- Shipping:
Inventory:7,990
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Product details
Overview
LMK6CE05000CDLER from Texas Instruments is a factory-programmed, ultra-low-jitter BAW-based LVCMOS oscillator delivering a precise 50 MHz output clock with ±25 ppm total frequency stability over –40°C to 105°C and 2.5V–3.3V supply. It features pin-1 Output Enable (active-high), <5 ms start-up time, and integrated LDO for robust PSRR (–72 dBc at 500 kHz). It serves as a high-reliability reference clock in PCIe Gen 7-compliant systems and industrial FPGA timing.
For engineers reviewing the LMK6CE05000CDLER datasheet, LMK6CE05000CDLER pinout, LMK6CE05000CDLER application, or LMK6CE05000CDLER equivalent, key selection criteria include its 50 MHz fixed-frequency accuracy, LVCMOS drive capability into ≤15 pF load, 0.4–1 ps RMS jitter (12 kHz–20 MHz), OE-controlled output enable/disable timing (25 µs / 1 µs), and DLE-4 3.2 mm × 2.5 mm VSON package compatibility with space-constrained PCB layouts.
Technical Context
The LMK6CE05000CDLER implements a Bulk-Acoustic Wave (BAW) resonator monolithically integrated with a fractional divider and LVCMOS output driver in a single-die solution. Its architecture eliminates external crystal components while maintaining sub-1 ps jitter performance at 50 MHz through on-chip temperature compensation and supply noise rejection.
It operates exclusively in fixed-frequency mode, factory-programmed for 50.000 MHz output, and supports only the OE function on Pin 1 - no standby or frequency selection logic. The device uses an internal LDO to isolate the BAW core from supply ripple, achieving –70 dBc to –72 dBc PSRR across 50 kHz–1 MHz under 50 mV ripple conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | 50.000 MHz - factory-trimmed, stable across full operating range; enables direct replacement of crystal oscillators in PCIe, Ethernet, and MCU reference designs. |
| RMS Jitter (12 kHz–20 MHz) | 0.4–1.0 ps - measured at 50 MHz; meets PCIe Gen 5/6/7 common-clock jitter limits (<150 fs / <100 fs / <67 fs) with margin. |
| Frequency Stability | ±25 ppm - inclusive of initial tolerance, temp variation (–40°C to 105°C), voltage variation (±5%), and 10-year aging; ensures long-term system timing integrity. |
| Supply Voltage | 2.5 V or 3.3 V ±5% - dual-voltage support simplifies integration into mixed-rail industrial and telecom boards without level-shifting. |
| Start-up Time | <5 ms - time from 0.95×VDD to valid output; critical for fast-boot applications like baseband units and network switches. |
| Output Enable Timing | tOE-EN = 25 µs, tOE-DIS = 1 µs - enables precise power-gating control of downstream logic clocks without glitching. |
| Max Capacitive Load | 15 pF - defines maximum trace + IC input capacitance; constrains routing length and fanout in high-speed clock distribution. |
Pinout & Package
VSON (DLE-4) package: 3.2 mm × 2.5 mm, 4-pin, exposed pad (non-electrical), moisture sensitivity level MSL1. Designed for reflow-compatible assembly and thermal dissipation in dense layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OE / ST / NC | Input (active-high enable) | Drives output when HIGH (≥1.3 V); pulls LOW (≤0.6 V) to disable clock; no standby function enabled on this variant. |
| 2: GND | Ground reference | Primary return path for oscillator core and output driver; must be low-inductance connection to minimize jitter. |
| 3: OUT | LVCMOS clock output | Single-ended 50 MHz square wave; VOH ≥2.64 V / VOL ≤0.66 V @ 3.3 V, 6.6 mA drive; 40–60 Ω output impedance. |
| 4: VDD | Power supply input | 2.5 V or 3.3 V ±5%; powers internal LDO and BAW circuitry; requires local 100 nF + 10 µF decoupling per datasheet layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| BAW resonator integration | Eliminates external crystal and load capacitors; reduces board area by >50% vs. discrete XO solutions while improving shock/vibration resilience. |
| Integrated LDO regulation | Delivers –72 dBc PSRR at 500 kHz ripple; allows direct connection to noisy digital rails without additional filtering components. |
| Ultra-low jitter at 50 MHz | 0.4–1.0 ps RMS (12 kHz–20 MHz); enables clean sampling in high-speed ADCs, SERDES, and DDR interfaces requiring tight timing margins. |
| Extended temperature operation | Rated for –40°C to +105°C ambient; qualified for industrial and automotive under-hood applications where ambient exceeds 85°C. |
| Fast output enable/disable | 25 µs enable / 1 µs disable latency; supports dynamic clock gating in power-managed systems without introducing metastability or glitches. |
Applications
| PCIe Gen 7 Reference Clocking | FPGA Core Clock Distribution |
|---|---|
Use Scenario: Provides primary reference clock to PCIe Gen 7 root complex and endpoint controllers in AI accelerators and high-end servers. IC Role / Device Role / Timing Role: Fixed-frequency LVCMOS clock source meeting PCIe Gen 7 common-clock jitter limit of 67 fs RMS (12 kHz–20 MHz). Use Value: Enables compliance without external jitter cleaners or complex PLL configurations; reduces BOM count and layout complexity. |
Use Scenario: Supplies synchronized core clock to Xilinx Versal or Intel Agilex FPGAs in 5G baseband processing units. IC Role / Device Role / Timing Role: Low-phase-noise 50 MHz reference for FPGA fabric and transceiver PLLs, supporting deterministic timing closure. Use Value: Delivers 0.4 ps RMS jitter at 50 MHz-well below FPGA vendor requirements-ensuring reliable bit-error-rate performance. |
| Industrial PLC Timing Module | Optical Transport Network Line Card |
Use Scenario: Generates system clock for real-time I/O processing in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: High-stability 50 MHz oscillator operating continuously at 105°C ambient with ±25 ppm accuracy over 10 years. Use Value: Eliminates field failures due to crystal aging or thermal drift; supports extended product lifecycle without recalibration. |
Use Scenario: Serves as master clock for OTN framer and forward error correction (FEC) ASICs in 400G/800G coherent line cards. IC Role / Device Role / Timing Role: Low-jitter, low-power LVCMOS clock source driving multiple ASIC clock inputs with matched skew. Use Value: Reduces deterministic jitter accumulation across multi-chip signal chains, improving OSNR margin and link reach. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si510-50.000M-GR | CMOS output, ±50 ppm stability, 2.5 V–3.3 V, 3.2 mm × 2.5 mm SOIC; higher jitter (1.5 ps RMS @ 50 MHz), no OE pin. | Lacks output enable; not suitable for dynamic clock gating; wider stability spec reduces long-term timing margin. | Select only if OE functionality is unnecessary and cost is prioritized over jitter and aging performance. |
| AK2-50.000MHZ-EV-T | LVCMOS, ±20 ppm (–40°C to 85°C), 2.5 V–3.3 V, 2.5 mm × 2.0 mm DLF package; 0.6 ps RMS jitter; no integrated LDO. | Rated only to 85°C; requires external supply filtering for equivalent PSRR; smaller footprint but less thermal margin. | Prefer for commercial-temp applications with strict size constraints; avoid in extended-temp industrial deployments. |
Compared with Si510-50.000M-GR and AK2-50.000MHZ-EV-T, the LMK6CE05000CDLER uniquely combines 105°C operation, ±25 ppm 10-year stability, OE control, and –72 dBc PSRR in a DLE-4 package-making it the only option qualified for high-reliability, thermally demanding, and dynamically gated clocking systems.
Availability
LMK6CE05000CDLER is available at Aetrix Electronics and suitable for PCIe Gen 7 reference clocking, FPGA core timing, and industrial PLC timing modules requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for LMK6CE05000CDLER 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 decades of expertise in precision timing and high-reliability silicon design.
The LMK6C family delivers factory-programmed, BAW-based oscillators optimized for industrial, telecom, and datacenter applications demanding ultra-low jitter, extended temperature operation, and high integration-replacing legacy crystal+buffer solutions.
FAQ
What is the output enable behavior of the LMK6CE05000CDLER?
The LMK6CE05000CDLER uses Pin 1 as an active-high Output Enable (OE) input. When OE is driven ≥1.3 V (VIH), the 50 MHz LVCMOS output is active; when OE is ≤0.6 V (VIL), the output is disabled within 1 µs. This pin is not configured for standby mode on this variant, and no pull-up/pull-down is required-floating defaults to disabled state per TI specification.
Does the LMK6CE05000CDLER require external load capacitors?
No, the LMK6CE05000CDLER does not require external load capacitors. As a fully integrated BAW oscillator, all resonator and tuning elements are monolithically embedded. The device outputs a buffered LVCMOS signal directly-only proper power decoupling (100 nF ceramic + 10 µF bulk) and controlled-impedance routing to ≤15 pF load are required per the LMK6CE05000CDLER datasheet.
What is the RMS jitter performance of the LMK6CE05000CDLER at 50 MHz?
The LMK6CE05000CDLER achieves 0.4–1.0 ps RMS jitter (12 kHz–20 MHz integration bandwidth) at 50 MHz output, depending on supply voltage and load conditions. This is verified in TI's characterization data and satisfies PCIe Gen 5 (150 fs), Gen 6 (100 fs), and Gen 7 (67 fs) common-clock jitter specifications with significant margin.
Can the LMK6CE05000CDLER operate at 1.8 V supply?
No, the LMK6CE05000CDLER is rated only for 2.5 V or 3.3 V ±5% supply operation, as indicated by the "C" suffix in its part number (per TI's LMK6C ordering guide). The "D" variant (e.g., LMK6CD05000CDLER) supports 1.8 V, but the LMK6CE05000CDLER is specifically configured for 2.5 V/3.3 V and will not function reliably at 1.8 V.
Is the LMK6CE05000CDLER pin-compatible with other LMK6C variants?
Yes, all LMK6C devices-including LMK6CE05000CDLER-use the same 4-pin DLE-4 or DLF-4 VSON package and identical pinout (OE, GND, OUT, VDD). However, electrical behavior differs: only "E"-suffixed parts support OE on Pin 1; "A"-suffixed parts use Pin 1 for standby. Always verify the function suffix and voltage/temperature rating before substitution.
LMK6CE05000CDLER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMK6x
- Package/Case:
- 4-VDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Base Resonator:
- Crystal
- 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):
- -
- Ratings:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-VSON (3.2x2.5)
- Size / Dimension:
- 0.126" L x 0.098" W (3.20mm x 2.50mm)
- Height - Seated (Max):
- 0.039" (1.00mm)
LMK6CE05000CDLER FAQ
1.How can I place an order for LMK6CE05000CDLER through Aetrix?
Please submit a Request for Quotation (RFQ) for LMK6CE05000CDLER 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 LMK6CE05000CDLER reliable?
The price and inventory of LMK6CE05000CDLER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMK6CE05000CDLER is usually 5 days.
3.What payment methods are accepted for LMK6CE05000CDLER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMK6CE05000CDLER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMK6CE05000CDLER?
LMK6CE05000CDLER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMK6CE05000CDLER 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 LMK6CE05000CDLER?
For technical support, including LMK6CE05000CDLER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMK6CE05000CDLER requirements.
6.How does Aetrix verify that LMK6CE05000CDLER is sourced from the original manufacturer or authorized distributors?
All LMK6CE05000CDLER 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 LMK6CE05000CDLER meets industry standards.
7.What is the process for return or replacement of LMK6CE05000CDLER?
All LMK6CE05000CDLER units undergo pre-shipment inspection (PSI). If there is an issue with LMK6CE05000CDLER, 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 LMK6CE05000CDLER part is unused and in its original packaging.
Return procedure for LMK6CE05000CDLER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMK6CE05000CDLER Tags
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