TRF3750IRGP Equivalent & Substitute Parts

Part Overview

The TRF3750IRGP is a PLL Frequency Synthesizer IC manufactured by Texas Instruments, designed for 2.4GHz clock/timing applications in a 20-VFQFN Exposed Pad surface mount package. The device is currently classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. Alternative components must maintain functional compatibility across input/output characteristics, supply voltage ranges, and thermal operating conditions while meeting equivalent compliance standards.

Substiute Parts

TRF3750IRGP

Texas InstrumentsIn Stock: 1443TRF3750IRGP Datasheet

Current PartRFQ

TRF3765IRHBT

Texas InstrumentsIn Stock: 1346TRF3765IRHBT Datasheet

MFR RecommendedRFQ

ADF4113BCPZ

Analog Devices Inc.In Stock: 9846ADF4113BCPZ Datasheet

MFR RecommendedRFQ

ADF4113BCPZ-RL7

Analog Devices Inc.In Stock: 3598ADF4113BCPZ-RL7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TRF3750IRGP is determined by the following critical parameters:

Functional Compatibility: Input and output clock characteristics, including signal type (differential/single-ended) and frequency range capability.

Electrical Compatibility: Supply voltage range must encompass or exceed the 3V to 5.5V requirement. Operating temperature range must maintain -40°C to 85°C minimum specification.

Physical Compatibility: Surface mount packaging with pin count and footprint considerations for PCB integration.

Compliance Alignment: RoHS3 compliance and REACH unaffected status ensure regulatory equivalence.

The substitute parts identified—TRF3765IRHBT, ADF4113BCPZ, and ADF4113BCPZ-RL7—are all active production components from established manufacturers (Texas Instruments and Analog Devices Inc.) that satisfy these substitution criteria within their specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

TRF3765IRHBT (Texas Instruments): This substitute offers the highest frequency capability at 4.8GHz and maintains Texas Instruments manufacturing continuity. However, the supply voltage range is restricted to 3V to 3.6V, which is narrower than the original 3V to 5.5V specification. The package footprint differs (32-VFQFN versus 20-VFQFN), requiring PCB layout modification. This option is suitable for applications where the lower voltage range is acceptable and PCB redesign is feasible. Active product status ensures long-term availability.

ADF4113BCPZ and ADF4113BCPZ-RL7 (Analog Devices Inc.): Both variants provide identical electrical specifications with 4GHz maximum frequency and 2.7V to 5.5V supply voltage range, which exceeds the original requirement. The 20-WFQFN Exposed Pad, CSP package maintains similar pin count and footprint compatibility with the original 20-VFQFN package. The primary difference between these two parts is packaging format: ADF4113BCPZ is supplied in Tray format, while ADF4113BCPZ-RL7 is supplied in Tape & Reel (TR) format. Both are active production components with ROHS3 compliance. These options provide the most direct electrical and physical substitution path.

Selection Criteria: For applications requiring minimal PCB redesign and maximum voltage range flexibility, the ADF4113 series (either packaging variant) is the preferred substitute. For applications where Texas Instruments component continuity is required and PCB modification is acceptable, the TRF3765IRHBT is the appropriate choice.

Frequently Asked Questions (FAQ)

Q: Can the TRF3765IRHBT directly replace the TRF3750IRGP without PCB modifications?

A: No. While both are Texas Instruments PLL/VCO clock synthesizers, the TRF3765IRHBT uses a 32-VFQFN package compared to the TRF3750IRGP's 20-VFQFN package. Pin count and footprint differ, requiring PCB layout redesign. Additionally, the supply voltage range is narrower (3V to 3.6V versus 3V to 5.5V).

Q: Are the ADF4113BCPZ and ADF4113BCPZ-RL7 electrically identical?

A: Yes. Both parts are electrically and functionally identical. The only difference is packaging format: ADF4113BCPZ is supplied in Tray format, while ADF4113BCPZ-RL7 is supplied in Tape & Reel (TR) format. Selection depends on production volume and assembly line requirements.

Q: Which substitute offers the best drop-in replacement capability?

A: The ADF4113 series (both variants) provides the closest substitution. The 20-WFQFN Exposed Pad, CSP package maintains similar footprint and pin count to the original 20-VFQFN package, minimizing PCB redesign. The supply voltage range (2.7V to 5.5V) exceeds the original specification, providing greater design flexibility.

Q: Do all substitute parts meet the same compliance standards as the TRF3750IRGP?

A: Yes. All three substitute parts are ROHS3 compliant and REACH unaffected, matching the original part's regulatory status. Operating temperature ranges (-40°C to 85°C) are identical across all options.

Q: What is the frequency capability difference between substitutes?

A: The TRF3765IRHBT supports 4.8GHz maximum frequency, while the ADF4113 series supports 4GHz maximum frequency. Both exceed the original TRF3750IRGP specification of 2.4GHz, providing headroom for higher-frequency applications if required.

Q: Are there inventory considerations for these substitutes?

A: All three substitute parts are currently in active production with substantial inventory availability. The ADF4113BCPZ has the highest reported inventory (9803 pcs), followed by ADF4113BCPZ-RL7 (3564 pcs) and TRF3765IRHBT (1301 pcs). Inventory levels should be verified with suppliers for current production requirements.