MMT20303HT1

Overview

The MMT20303HT1 is a digital step attenuator manufactured by NXP Semiconductors, designed for RF and IF applications. It operates within a frequency range of 50 MHz to 4 GHz and provides an attenuation range up to 7 dB. The device features a 3-bit resolution with a least significant bit (LSB) step size of 1 dB. It utilizes a 3-bit parallel interface for control and functions on a supply voltage between 3 V and 5 V. The component is housed in a 16-VFQFN exposed pad package and is RoHS compliant.

Feature Summary

• Integrated 3-bit digital step attenuator functionality
• Controlled via a 3-bit parallel interface
• Operates within a 50 MHz to 4 GHz frequency range

Applications

• RF signal path attenuation
• IF stage gain control
• Wireless communication systems

Procurement Notes

Verify the specific suffix 'T1' against the manufacturer's current product status, as some sources indicate this part number may be obsolete or no longer manufactured. Confirm the exact package marking and datasheet revision to ensure compatibility with design requirements. Cross-reference the RoHS compliance status with the latest environmental declarations provided by NXP Semiconductors before finalizing procurement decisions.

Selection Notes

Select this component when a compact digital solution is required for precise attenuation steps in the UHF to microwave bands. The 1 dB LSB resolution allows for fine-grained control over signal levels. Ensure the system logic levels are compatible with the 3-bit parallel interface and that the operating voltage aligns with the 3 V to 5 V specification. Consider the thermal performance of the exposed pad package for heat dissipation needs.

Part Context

The MMT20303HT1 belongs to NXP's portfolio of integrated RF attenuators, specifically designed for digital control applications. It serves as a solid-state alternative to mechanical or analog variable attenuators, offering faster switching speeds and smaller form factors. This series supports various digital interfaces and is tailored for integration into modern wireless infrastructure and test equipment.

Replacement Considerations

Check NXP's official obsolescence notices for this specific part number. If discontinued, consult the manufacturer's replacement guide for direct equivalents within the MMT203xx series. Verify pinout compatibility and electrical parameter alignment if substituting with other 3-bit digital attenuators from different manufacturers.