Texas Instruments LMK6CE03333CDLER

Overview

LMK6CE03333CDLER from Texas Instruments is a factory-programmed, ultra-low-jitter LVCMOS bulk-acoustic wave (BAW) oscillator delivering 33.333333 MHz fixed-frequency output with ±25 ppm total frequency stability over –40°C to +105°C, integrated LDO for –72 dBc PSRR at 500 kHz, and <5 ms start-up time. It serves as a high-stability reference clock for FPGA/ASIC timing, industrial control systems, and PCIe Gen 1–7 compliant applications requiring robust supply noise immunity.

For engineers reviewing the LMK6CE03333CDLER datasheet, LMK6CE03333CDLER pinout, LMK6CE03333CDLER application, or LMK6CE03333CDLER equivalent, key selection criteria include its 33.333333 MHz LVCMOS output, 0.25–0.5 ps RMS jitter (12 kHz–20 MHz) at 100–156.25 MHz, extended temperature grade (–40°C to +105°C), and VSON-4 DLF (2.5 mm × 2.0 mm) package compatibility with space-constrained industrial and networking designs.

Technical Context

The LMK6CE03333CDLER implements TI's monolithic BAW resonator technology directly integrated into the VSON package, eliminating external crystal dependencies and enabling superior mechanical shock/vibration resilience. Its fractional output divider supports precise factory programming of any frequency between 1 MHz and 200 MHz - here fixed at 33.333333 MHz - with no external components required.

Internal power conditioning includes an integrated LDO delivering –72 dBc PSRR at 500 kHz ripple, ensuring stable clock output under noisy supply conditions. The device operates from 1.8 V, 2.5 V, or 3.3 V supplies and features configurable function pins (OE/ST) supporting output enable or standby modes without external logic.

Key Specifications

Pinout & Package

LMK6CE03333CDLER uses a 4-pin VSON (DLF-4) package measuring 2.5 mm × 2.0 mm with wettable flanks, optimized for automated optical inspection and high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar fixed-frequency LVCMOS oscillator applications.

Compared with Si510-333333AAGM and AK2-33.333333MHZ-E, LMK6CE03333CDLER provides the tightest combination of stability (±25 ppm over –40°C to +105°C), lowest jitter (0.25–0.5 ps), and integrated LDO - making it optimal for mission-critical industrial and telecom timing where supply noise and thermal drift must be minimized.

Availability

LMK6CE03333CDLER is available at Aetrix Electronics and suitable for industrial PLC timing, FPGA reference clocking, PCIe Gen 5–7 systems, and optical transport network timing requiring stable component supply across extended temperature and long-lifecycle deployments.

Supply support for LMK6CE03333CDLER 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 manufacturing including BAW resonator fabrication.

The LMK6x product line was designed specifically for high-reliability, ultra-low-jitter timing in next-generation data center, telecom, and industrial systems - replacing quartz oscillators with monolithic silicon-based alternatives offering superior shock resistance, aging stability, and integration.

FAQ

What is the recommended power supply decoupling for LMK6CE03333CDLER?

Place a 100 nF X7R ceramic capacitor within 2 mm of the VDD pin and connect it directly to the GND pin using a short, low-inductance trace. Avoid shared vias or daisy-chained grounds. For systems with high-frequency switching noise, add a 1 µF tantalum or polymer capacitor in parallel. The integrated LDO reduces sensitivity, but proper local decoupling remains essential to maintain <0.5 ps RMS jitter performance.

Can LMK6CE03333CDLER be used as a drop-in replacement for a 33.333 MHz quartz oscillator?

Yes - it uses the same 2.5 mm × 2.0 mm VSON-4 footprint as many industry-standard quartz oscillators and provides identical LVCMOS output levels, drive strength, and startup behavior. No circuit modifications are needed beyond verifying supply voltage compatibility (1.8/2.5/3.3 V). Its BAW architecture eliminates crystal-related failures due to shock, vibration, or aging, improving long-term field reliability.

Does LMK6CE03333CDLER support spread-spectrum clocking (SSC)?

No - LMK6CE03333CDLER is a fixed-frequency oscillator with no built-in spread-spectrum capability. It is factory-programmed for 33.333333 MHz and lacks modulation control pins or registers. For SSC requirements, TI recommends the LMK05318 or LMK05028 clock generators, which offer programmable spread-spectrum profiles while maintaining ultra-low jitter.

How is frequency accuracy validated over temperature and lifetime?

Texas Instruments validates LMK6CE03333CDLER's ±25 ppm specification across –40°C to +105°C, including 10-year aging at 25°C, solder shift, initial tolerance, and supply voltage variation - all tested per JEDEC JESD22-A108 and JESD22-A119 standards. Each unit undergoes final test at temperature extremes, and TI publishes accelerated life-test data confirming aging drift remains within spec over full product lifetime.