CMX979Q4-TR1K

Overview

The CMX979Q4-TR1K is a fractional and integer-N synthesizer with an integrated VCO, manufactured by CML Micro. It operates within a frequency range of 500 MHz to 1 GHz and requires a supply voltage between 2.7 V and 3.6 V. The device is housed in a 40-VQFN (6x6) package and is supplied in tape and reel format for surface-mount applications.

Feature Summary

• Integrates fractional and integer-N phase-locked loop synthesis with a voltage-controlled oscillator
• Designed for CATV and ISM band frequency generation applications
• Supports low-power operation with a wide operating supply voltage range

Applications

• CATV signal processing systems
• ISM band wireless communication modules
• Frequency synthesis for RF transceivers

Procurement Notes

Verify the specific suffix TR1K confirms the tape and reel packaging configuration distinct from tray or other variants. Confirm the 40-VQFN footprint matches the target PCB layout. Ensure the 500 MHz to 1 GHz output range aligns with system requirements before finalizing procurement orders.

Selection Notes

Select this component when a combined PLL and VCO solution is required for frequencies up to 1 GHz. The integrated design reduces external component count compared to discrete solutions. Consider the 40-VQFN package size for space-constrained designs requiring surface-mount assembly capabilities.

Part Context

This part belongs to the CML Micro RF building block portfolio, specifically targeting frequency synthesis needs. It complements other CML components like the CMX975 up/down converters by providing the necessary local oscillator signals for conversion processes in RF front-end architectures.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing board layouts if considering alternative synthesizers from different manufacturers.