TRF2052PW

Clock Generators, PLLs, Frequency Synthesizers Overview

The TRF2052PW is a dual-channel, low-power phase-locked loop (PLL) frequency synthesizer designed for DECT applications and systems operating up to 2 GHz. It features a main channel for RF frequencies and an auxiliary channel for IF frequencies. The device utilizes a speed-up integral charge pump for fast channel switching, controlled via a serial interface. Supply voltages are 2.7 V to 3.3 V. The main RF input operates from 0.1 GHz to 2.0 GHz with a differential voltage of -3 dBm. The reference input frequency is 13.8 MHz. Average operational supply current is typically 11.4 mA at 3 V.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Dual PLL architecture providing independent main RF and auxiliary IF channels
• Speed-up mode with increased charge pump current for rapid channel switching
• Three-wire serial control interface for programmable divider ratios and charge pump settings
• Independent enable/disable capability for each synthesizer loop

Clock Generators, PLLs, Frequency Synthesizers Applications

• Digitally enhanced cordless telephone (DECT) systems
• RF frequency synthesis in wireless communication devices
• IF frequency generation in receiver architectures

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific package variant against the datasheet mechanical data. Confirm that the PW package designation corresponds to the plastic small-outline configuration. Ensure design compatibility with the required 2.7 V to 3.3 V supply rails and check for any obsolescence notices regarding this July 1998 publication date.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a dual-loop synthesizer with fast settling times is required for DECT or similar 2 GHz applications. Evaluate the external resistor requirements for setting charge pump currents via pins RA and RN. Consider the serial interface timing constraints and the need for external passive RC loop filters to complete the PLL system.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The TRF2052 is part of Texas Instruments' synthesizer family, compatible with extended performance modes of other devices. It serves as a core frequency generation block for digital radio systems requiring precise RF and IF locking. The PW package is a standard plastic small-outline form factor suitable for surface-mount assembly.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Public confirmed substitute part numbers: None identified in verified documentation.