LMK61E2-SIAT

Overview

The LMK61E2-SIAT is an ultra-low jitter programmable oscillator from Texas Instruments, designed for high-performance clock generation. It operates within a frequency range of 10 MHz to 1 GHz and supports multiple output formats including HCSL, LVDS, and LVPECL. The device features a silicon-based VCXO architecture housed in an 8-QFM (7x5 mm) surface-mount package. It functions on a single 3.3 V supply with a maximum operating current of 208 mA and includes enable/disable functionality. The unit weight is approximately 10.315 g.

Feature Summary

• Ultra-low jitter performance suitable for demanding signal integrity applications
• Fully programmable via I2C interface with factory-configurable EEPROM options
• Integrated voltage-controlled crystal oscillator (VCXO) architecture
• Supports flexible differential output configurations across multiple standards

Applications

• Medical imaging systems requiring precise timing synchronization
• Test and measurement equipment needing stable reference clocks
• High-speed data transmission interfaces utilizing LVDS or LVPECL outputs
• Telecommunications infrastructure components

Procurement Notes

Verify the specific suffix 'SIAT' corresponds to the required tape-and-reel packaging quantity and moisture sensitivity level. Confirm that the 8-QFM package dimensions align with your PCB footprint constraints. Ensure the I2C address settings match your system design requirements before finalizing procurement orders.

Selection Notes

Select this component when ultra-low phase noise is critical for system performance. Choose the LMK61E2-SIAT over fixed-frequency oscillators if dynamic frequency adjustment or jitter attenuation capabilities are needed. Consider the 3.3 V supply requirement and ensure compatibility with existing power delivery networks. Evaluate the need for enable/disable control features in your specific application context.

Part Context

This part belongs to the LMK61E2 series of ultra-low jitter programmable oscillators. It serves as a direct replacement for standard crystal oscillators in high-speed digital designs. The device integrates a PLLatinum programmable oscillator with a fractional-N synthesizer. It is distinct from evaluation modules like the LMK61E2EVM, which are used for development rather than production integration.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and electrical specifications carefully when considering alternative sources or updated revisions from the manufacturer.