TRF3750IRGPR

Clock Generators, PLLs, Frequency Synthesizers Overview

The TRF3750IRGPR is a high-performance integer-N PLL frequency synthesizer from Texas Instruments, packaged in a 20-pin QFN (RGP) format. It supports dual supply ranges of 3 V to 3.6 V and 4.5 V to 5.5 V for AVDD/DVDD, with an extended charge pump supply (VCP) up to 8 V. The device covers frequencies up to 2.4 GHz, featuring a user-selectable dual-modulus prescaler, a 14-bit R counter, and A/B counters. It operates within a temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Supports fully programmable counters and charge pump current via a simple 3-wire serial interface.
• Features separate analog and digital lock detect outputs for system monitoring.
• Includes versatile hardware and software power-down modes for energy management.
• Provides a multiplexer output (MUXOUT) selectable for lock detect or divided RF/reference signals.

Clock Generators, PLLs, Frequency Synthesizers Applications

• Wireless infrastructure systems including GSM, EDGE, UMTS, and CDMA2000.
• Portable wireless communication devices.
• Wireless LAN implementations.
• Wireless transceiver local oscillator generation.
• Communication test equipment.

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix 'IRGPR' corresponds to the QFN-20 package and reel transport media. Confirm that the component meets the required -40°C to +85°C operating temperature range for your application environment. Ensure compatibility with the specified 3 V or 5 V supply voltages and check for any RoHS compliance documentation associated with this specific revision.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the TRF3750IRGPR when a compact QFN footprint is required compared to the TSSOP variant. Ensure the design accommodates the extended VCP supply voltage capability for driving external VCOs. Verify that the 3-wire serial interface timing requirements align with the host controller's capabilities. Consider the thermal dissipation characteristics of the QFN package for the specific PCB layout.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the TRF3750 family of integer-N PLL frequency synthesizers. The IRGPR designation specifically identifies the version housed in a 20-pin 4 x 4 mm QFN package with tube/reel availability options. It shares core functionality with the IPW/TSSOP variants but offers different physical integration parameters for space-constrained designs.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The TRF3750IPWR serves as a pin-compatible alternative utilizing a 16-pin TSSOP package. Both parts share identical electrical specifications and functionality; selection depends primarily on board space constraints and preferred mounting technology.