LMK61A2-125M Ultra-Low Jitter Standard Differential Oscillator - 125M00 | TI.com

LMK61A2-125M (ACTIVE) Ultra-Low Jitter Standard Differential Oscillator - 125M00



The LMK61XX is an ultra-low jitter oscillator that generates a commonly used reference clock. The device is pre-programmed in factory to support any reference clock frequency; supported output formats are LVPECL up to 1 GHz, LVDS up to 900 MHz, and HCSL up to 400 MHz. Internal power conditioning provide excellent power supply ripple rejection (PSRR), reducing the cost and complexity of the power delivery network. The device operates from a single 3.3 V ± 5% supply.


  • Ultra-low Noise, High Performance
    • Jitter: 90 fs RMS Typical Fout > 100 MHz
    • PSRR: –70 dBc, Robust Supply Noise Immunity
  • Supported Output Format
    • LVPECL up to 1 GHz
    • LVDS up to 900 MHz
    • HCSL up to 400 MHz
  • Total Frequency Tolerance of ± 50 ppm (LMK61X2) and ± 25 ppm (LMK61X0)
  • 3.3-V Operating Voltage
  • Industrial Temperature Range (–40ºC to +85ºC)
  • 7 mm × 5 mm 6-Pin Package, Pin-Compatible With Industry Standard 7050 XO Package

All trademarks are the property of their respective owners.

Customize Your Oscillator

Device Variant (More device variants)

Device Attributes
Output format
±50 ppm

Device Output Frequency
Frequency Range for selected format
Supported Frequencies:


Compare all products in Clock oscillators Email Download to Excel
Part number Order Features Output frequency (Max) (MHz) Output level Jitter (ps) Stability (ppm) VCC core (V) Operating temperature range (C)
LMK61A2-125M Order now Standard
125     LVDS     0.1     50     3.3     -40 to 85    
LMK61E2-125M Order now Standard
125     LVPECL     0.1     50     3.3     -40 to 85