TRF3702IRHCG4 Equivalent & Substitute Parts

Part Overview

The TRF3702IRHCG4 is an RF Modulator IC manufactured by Texas Instruments, designed for operation across the 1.5GHz to 2.5GHz frequency range. This device is classified as obsolete, which necessitates identification of functionally equivalent substitute components for ongoing system support and new design implementations. The part is housed in a 16-VQFN Exposed Pad surface mount package and operates from a 4.5V to 5.5V supply.

Substiute Parts

TRF3702IRHCG4

Texas InstrumentsIn Stock: 1011TRF3702IRHCG4 Datasheet

Current PartRFQ

TRF370333IRGER

Texas InstrumentsIn Stock: 16122TRF370333IRGER Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TRF3702IRHCG4 is determined by the following critical parameters:

Functional Compatibility: The substitute must perform the RF modulation function across overlapping or extended frequency ranges that encompass the original 1.5GHz to 2.5GHz operating band.

Electrical Performance: Supply voltage compatibility (4.5V to 5.5V), noise floor performance, and output power characteristics must support the intended application requirements.

Physical Form Factor: Surface mount packaging with compatible pin counts and exposed pad thermal management.

Regulatory Compliance: RoHS3 compliance and REACH unaffected status must be maintained.

The identified substitute, TRF370333IRGER, meets these criteria through an extended frequency capability (400MHz to 4GHz) that fully encompasses the original part's operating range, maintains identical supply voltage specifications, and preserves all regulatory compliance requirements.

Parameter Comparison

Engineering Selection Recommendations

The TRF370333IRGER is the manufacturer-recommended substitute for the obsolete TRF3702IRHCG4. Selection of this substitute is supported by the following factors:

Product Status: The substitute is classified as Active, ensuring continued availability and manufacturer support, whereas the original part is Obsolete.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, preserving environmental and regulatory requirements.

Frequency Coverage: The substitute's extended frequency range (400MHz to 4GHz) fully encompasses the original operating band (1.5GHz to 2.5GHz), ensuring functional compatibility for existing applications.

Supply Voltage Compatibility: Identical supply voltage specifications (4.5V to 5.5V) eliminate power distribution redesign requirements.

Performance Characteristics: The substitute demonstrates improved noise floor performance (-163dBm/Hz versus -155dBm/Hz) and higher P1dB rating (9.5dBm versus 7dBm).

Package Consideration: The substitute uses a 24-pin package versus the original 16-pin package, requiring PCB layout modification and increased board space allocation.

Frequently Asked Questions (FAQ)

Q: Can the TRF370333IRGER be used as a direct pin-for-pin replacement?

A: No. The TRF370333IRGER uses a 24-VFQFN package compared to the 16-VQFN package of the TRF3702IRHCG4. PCB layout redesign is required to accommodate the different pin count and package footprint.

Q: What are the key electrical differences between these parts?

A: The substitute exhibits improved noise floor performance (-163dBm/Hz versus -155dBm/Hz) and higher P1dB (9.5dBm versus 7dBm). Supply current increases from 170mA to 235mA. Output power differs by 2dBm (-4.5dBm versus -2.5dBm).

Q: Is the substitute compatible with the original supply voltage?

A: Yes. Both parts operate from 4.5V to 5.5V supply voltage, eliminating power supply modifications.

Q: Does the substitute support the original frequency range?

A: Yes. The substitute's frequency range (400MHz to 4GHz) fully encompasses the original operating band (1.5GHz to 2.5GHz).

Q: Are there any compliance differences?

A: No. Both parts maintain ROHS3 compliance and REACH unaffected status with identical MSL ratings of 2 (1 Year).

Q: What is the primary reason for substitution?

A: The TRF3702IRHCG4 is classified as Obsolete. The TRF370333IRGER is the manufacturer-recommended Active substitute, ensuring long-term availability and support.