DSA400-1111Q0190KL1TVAO

Clock Generators, PLLs, Frequency Synthesizers Overview

The DSA400-1111Q0190KL1TVAO is a configurable four-output low jitter clock generator utilizing PureSilicon MEMS technology. It operates within a supply voltage range of 2.25V to 3.6V and provides frequency stability of ±50 ppm. The device supports output frequencies from 2.3 MHz to 460 MHz for differential formats and up to 170 MHz for LVCMOS. It features two independent banks with pin-selectable frequency tables, allowing selection between two pre-configured sets per bank via FSB1 and FSB2 inputs. Outputs are individually configurable as LVPECL, LVDS, HCSL, or LVCMOS. The component is housed in a 20-pin QFN (5.0 mm x 3.2 mm) package and is qualified to AEC-Q100 Automotive Grade 2 standards, supporting an operating temperature range of –40°C to +105°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• AEC-Q100 Automotive Grade 2 qualification ensuring reliability in automotive environments
• PureSilicon MEMS technology providing high shock and vibration immunity
• Four format-configurable outputs supporting LVPECL, LVDS, HCSL, and LVCMOS
• Pin-selectable frequency table allowing independent selection of two frequency sets per bank

Clock Generators, PLLs, Frequency Synthesizers Applications

• Automotive Infotainment systems
• Automotive Advanced Driver Assistance Systems (ADAS)
• Autonomous Driving platforms
• In-Vehicle Network interfaces

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory-assigned frequency code corresponding to the 'Q0190' segment against Microchip documentation to ensure correct operational parameters. Confirm that the 'L' suffix matches the required -40°C to +105°C temperature grade for your application. Ensure the 'VAO' automotive suffix aligns with standard automotive ordering requirements. Cross-reference the datasheet DS20006356A for final electrical specifications before procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when designing automotive timing circuits requiring low jitter and high stability without external crystals. Use the ClockWorks Configurator tool to define specific frequency requirements and output formats. Verify that the required frequency falls within the 2.3 MHz to 460 MHz range for differential outputs or 170 MHz for LVCMOS. Ensure the ±50 ppm stability meets system tolerance needs and that the 20-pin QFN footprint fits the PCB layout constraints.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The DSA400 series represents Microchip's solution for automotive clock generation using MEMS technology. This specific part number indicates a configuration with all LVCMOS outputs (1111), Automotive Grade 2 temperature rating (L), ±50 ppm stability (1), Tape and Reel packaging (T), and the standard automotive suffix (VAO). It belongs to the broader family of configurable MEMS oscillators designed to replace traditional quartz-based solutions in demanding automotive applications.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct pin-compatible replacements within the same family include other DSA400 variants with different output formats or temperature grades. For non-MEMS alternatives, verify compatibility with PCIe Gen1/2/3/4 common clock specifications if applicable. Ensure any substitute maintains the required AEC-Q100 qualification and operates within the 2.25V to 3.6V supply range.