LMX2820RTCR

Overview

The LMX2820RTCR is a wideband PLLatinum RF synthesizer manufactured by Texas Instruments. It generates frequencies from 45 MHz to 22.6 GHz with an integrated VCO covering 5 MHz to 1220 MHz. The device supports a reference input frequency range of 5 MHz to 1.4 GHz. It operates on a supply voltage between 3.15 V and 3.45 V. The component functions within a temperature range of -40°C to +85°C. It is housed in a 48-pin VQFN package measuring 7x7 mm.

Feature Summary

• Integrates a wideband phase-locked loop with a built-in voltage-controlled oscillator for broad frequency generation capabilities.
• Supports JESD204B interface standards to facilitate direct connection with high-speed data converters.
• Provides phase synchronization features to maintain signal integrity across multiple synchronized channels.

Applications

• High-speed serial link clock generation for JESD204B compliant systems
• Local oscillator sources for software-defined radio architectures
• Test and measurement equipment requiring precise wideband frequency synthesis

Procurement Notes

Verify the specific suffix RTCR corresponds to the tape and reel packaging configuration as indicated by distributor listings. Confirm that the device meets RoHS compliance requirements for your target assembly process. Ensure the operating voltage limits are strictly maintained within the specified 3.15 V to 3.45 V range during system integration to guarantee performance stability.

Selection Notes

Select this component when a single-chip solution is required for frequencies extending up to 22.6 GHz. It is suitable for designs needing integrated VCO functionality without external tuning components. Consider its JESD204B support if interfacing directly with ADCs or DACs. Evaluate the thermal performance within the -40°C to +85°C range against your environmental constraints.

Part Context

This part belongs to the LMX2820 family of wideband RF synthesizers. The RTCR suffix denotes the specific reel packaging variant distributed by Texas Instruments. It is designed as a high-performance alternative to discrete synthesizer solutions, offering reduced board space and simplified design complexity for modern communication systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Texas Instruments official resources for potential cross-reference options or next-generation replacements if this specific model becomes unavailable.

FAQ

What is the maximum output frequency supported by the LMX2820RTCR?

The device supports an output frequency range up to 22.6 GHz.

Does the LMX2820RTCR support JESD204B interfaces?

Yes, the datasheet confirms that the LMX2820 includes support for JESD204B standards.