TRF3750IPWRG4 Equivalent & Substitute Parts

Part Overview

The TRF3750IPWRG4 is a PLL Frequency Synthesizer IC manufactured by Texas Instruments, designed for 2.4GHz clock/timing applications in a 16-TSSOP surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility through matching electrical specifications and mechanical packaging standards.

Substiute Parts

TRF3750IPWRG4

Texas InstrumentsIn Stock: 1127TRF3750IPWRG4 Datasheet

Current PartRFQ

TRF3765IRHBR

Texas InstrumentsIn Stock: 2148TRF3765IRHBR Datasheet

MFR RecommendedRFQ

ADF4113BRUZ

Analog Devices Inc.In Stock: 25932ADF4113BRUZ Datasheet

MFR RecommendedRFQ

ADF4113BRUZ-REEL

Analog Devices Inc.In Stock: 32025ADF4113BRUZ-REEL Datasheet

MFR RecommendedRFQ

ADF4113BRUZ-REEL7

Analog Devices Inc.In Stock: 20661ADF4113BRUZ-REEL7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TRF3750IPWRG4 are grouped based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Package / Case: 16-TSSOP (0.173", 4.40mm Width) — mechanical and electrical pin compatibility
• Operating Temperature: -40°C ~ 85°C — thermal operating range
• Voltage - Supply: 3V ~ 5.5V range or compatible subset
• Input/Output: Clock signal compatibility
• RoHS Status: ROHS3 Compliant — regulatory compliance

Substitute Categories:

Category 1: Direct Package Match (16-TSSOP)

• ADF4113BRUZ (Analog Devices Inc.)
• ADF4113BRUZ-REEL (Analog Devices Inc.)
• ADF4113BRUZ-REEL7 (Analog Devices Inc.)

These parts maintain the identical 16-TSSOP package footprint, enabling direct PCB layout compatibility. All three variants represent the same base part number (ADF4113) with different packaging/reel configurations.

Category 2: Enhanced Performance Alternative (32-VFQFN)

• TRF3765IRHBR (Texas Instruments)

This part offers higher frequency capability (4.8GHz) and represents an active product status alternative. The package differs (32-VFQFN vs. 16-TSSOP), requiring PCB redesign but providing extended frequency range and integrated VCO functionality.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No PCB Redesign):

Select ADF4113BRUZ, ADF4113BRUZ-REEL, or ADF4113BRUZ-REEL7 when PCB layout and mechanical constraints require identical 16-TSSOP packaging. All three variants are active products with ROHS3 compliance and identical electrical specifications. The choice between variants depends on packaging requirements: standard tube (ADF4113BRUZ), standard reel (ADF4113BRUZ-REEL), or Digi-Reel cut tape (ADF4113BRUZ-REEL7). The ADF4113 series provides higher maximum frequency (4GHz vs. 2.4GHz) and integrated PLL functionality, offering performance headroom within the same package footprint.

For Enhanced Performance (PCB Redesign Acceptable):

Select TRF3765IRHBR when design flexibility permits package change to 32-VFQFN. This part offers the highest frequency capability (4.8GHz) and remains within the Texas Instruments product family. The narrower supply voltage range (3V ~ 3.6V) requires verification against system power distribution specifications. Active product status ensures long-term availability and manufacturing support.

All substitute options maintain ROHS3 compliance, -40°C ~ 85°C operating temperature range, and surface mount compatibility with the original design requirements.

Frequently Asked Questions (FAQ)

Q: Can ADF4113BRUZ directly replace TRF3750IPWRG4 without PCB modification?

A: Yes. The ADF4113BRUZ maintains identical 16-TSSOP package dimensions (0.173", 4.40mm Width), pin count, and surface mount footprint. No PCB layout changes are required. Electrical specifications are compatible within the operating temperature and supply voltage ranges specified for both parts.

Q: What is the difference between ADF4113BRUZ, ADF4113BRUZ-REEL, and ADF4113BRUZ-REEL7?

A: These are the same base part number (ADF4113) with different packaging configurations. ADF4113BRUZ is supplied in tube packaging. ADF4113BRUZ-REEL uses standard reel packaging. ADF4113BRUZ-REEL7 uses Digi-Reel cut tape packaging. Electrical and functional specifications are identical across all three variants.

Q: Why does TRF3765IRHBR have a different package (32-VFQFN)?

A: The TRF3765IRHBR is a higher-performance device with integrated VCO functionality and maximum frequency of 4.8GHz. The 32-VFQFN package accommodates additional circuitry and provides enhanced thermal management through an exposed pad. This part requires PCB redesign but offers extended frequency range and active product status.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. TRF3750IPWRG4 and all listed substitute parts (ADF4113BRUZ, ADF4113BRUZ-REEL, ADF4113BRUZ-REEL7, TRF3765IRHBR) are ROHS3 compliant, meeting regulatory requirements for hazardous substance restrictions.

Q: What is the supply voltage compatibility between the original and substitute parts?

A: TRF3750IPWRG4 operates at 3V ~ 5.5V. ADF4113 variants operate at 2.7V ~ 5.5V, providing broader low-voltage compatibility. TRF3765IRHBR operates at 3V ~ 3.6V, requiring verification that system power supplies remain within this narrower range. All parts support the 3V ~ 5.5V overlap region.

Q: Is the TRF3750IPWRG4 still available for purchase?

A: The TRF3750IPWRG4 is classified as obsolete. Current inventory availability is limited to existing stock. For new designs and ongoing production, active substitute parts (ADF4113 series or TRF3765IRHBR) are recommended to ensure long-term supply chain reliability.