SL18861DIT

Clock Buffers, Drivers Overview

The SL18861DI is a high-performance 3-output clock distribution buffer manufactured by Silicon Laboratories. It provides three single-ended LVCMOS outputs from a single input clock using proprietary low phase noise circuitry. The device operates on a single supply voltage ranging from 1.70V to 3.65V and supports an input clock frequency range of 10MHz to 52MHz. It accepts both LVCMOS square wave and sine wave inputs. Each output can be individually disabled via dedicated control pins to reduce power consumption. The component is housed in a compact 10-pin TDFN package measuring 1.4x2.0x0.75 mm and functions within an industrial temperature range of -40°C to 85°C.

Clock Buffers, Drivers Feature Summary

• Three independent single-ended LVCMOS outputs with individual enable/disable control (OE1/2/3) for power optimization
• Ultra-low additive phase noise performance, reaching -165 dBc/Hz at 100 kHz offset with a 3.3V supply
• Supports 10MHz to 52MHz input clock frequencies with CMOS or sine wave compatibility
• Low current consumption of 2.7mA typical at 1.8V supply with zero load capacitance

Clock Buffers, Drivers Applications

• Smart mobile handsets requiring efficient clock distribution
• Multi-mode RF clock distribution systems
• Baseband peripheral clock distribution networks

Clock Buffers, Drivers Procurement Notes

Verify the specific ordering suffix when purchasing. The SL18861DI designation refers to the tube packaging variant, while the SL18861DIT indicates tape and reel shipping. Confirm that the required quantity aligns with the selected packaging format to ensure proper handling and integration into manufacturing processes.

Clock Buffers, Drivers Selection Notes

Select this component for designs requiring a single-input, multi-output clock buffer with minimal phase noise. Ensure the system power supply falls within the 1.70V to 3.65V operational range. Verify that the load capacitance on each output does not exceed the specified maximums (typically 20pF to 25pF depending on voltage) to maintain signal integrity and rise/fall time specifications.

Clock Buffers, Drivers Part Context

This component belongs to the SL18861 series of clock buffers produced by Silicon Laboratories. It is designed to isolate devices driven by their respective clock outputs, thereby minimizing interference between connected components. The device serves as an input clock reference for baseband mobile RF applications, including WLAN, Bluetooth, and DVB-H implementations.

Clock Buffers, Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Silicon Laboratories resources for cross-reference information or verify pin-to-pin compatibility with other members of the SL1886x family if alternative sourcing is required.