PLL1708DBQRG4 Equivalent & Substitute Parts

Part Overview

The PLL1708DBQRG4 is a PLL Multi-Clock Generator IC manufactured by Texas Instruments, designed for clock and timing applications. This device generates multiple clock outputs from a single input source, supporting both CMOS and Crystal inputs with a maximum frequency of 36.87MHz and a 1:6 input-to-output ratio.

The PLL1708DBQRG4 is discontinued at DiGi Electronics. Equivalent and substitute parts are available to maintain design continuity and ensure supply chain reliability for applications requiring PLL multi-clock generation functionality.

Substiute Parts

PLL1708DBQRG4

Texas InstrumentsIn Stock: 1152PLL1708DBQRG4 Datasheet

Current PartRFQ

PLL1708DBQR

Texas InstrumentsIn Stock: 16115PLL1708DBQR Datasheet

MFR RecommendedRFQ

PLL1705DBQR

Texas InstrumentsIn Stock: 2990PLL1705DBQR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PLL1708DBQRG4 are qualified based on identical electrical and mechanical parameters. The following criteria determine substitution eligibility:

Critical Parameters for Substitution:

• Package / Case: 20-SSOP (0.154", 3.90mm Width)
• Input Type: CMOS, Crystal
• Output Type: CMOS
• Frequency - Max: 36.87MHz
• Ratio - Input:Output: 1:6
• Voltage - Supply: 2.7V ~ 3.6V
• Operating Temperature: -25°C ~ 85°C
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed maintain these parameters, ensuring functional and mechanical compatibility with the original PLL1708DBQRG4 design.

Parameter Comparison

Engineering Selection Recommendations

PLL1708DBQR (MFR Recommended Substitute)

The PLL1708DBQR is the manufacturer-recommended substitute for the discontinued PLL1708DBQRG4. This part maintains identical electrical specifications and package configuration. The PLL1708DBQR carries Active product status with 16007 units in stock, ensuring supply availability. Both parts are ROHS3 compliant and carry equivalent regulatory certifications (REACH Unaffected, EAR99 ECCN classification).

PLL1705DBQR (Parametric Equivalent)

The PLL1705DBQR is a parametric equivalent offering identical electrical and mechanical characteristics to the PLL1708DBQRG4. This part is Active with 2916 units in stock. The PLL1705DBQR differs only in base product number designation while maintaining all critical parameters for functional substitution. ROHS3 compliance and regulatory certifications are equivalent.

Both substitute parts are suitable for direct replacement in applications requiring PLL multi-clock generation with the specified electrical and thermal operating ranges.

Frequently Asked Questions (FAQ)

Q: Can PLL1708DBQR replace PLL1708DBQRG4 in existing designs?

A: Yes. The PLL1708DBQR maintains identical electrical specifications, package configuration, supply voltage range (2.7V ~ 3.6V), operating temperature range (-25°C ~ 85°C), frequency rating (36.87MHz), and input/output characteristics. The primary difference is packaging format (Tape & Reel vs. standard packaging) and product status (Active vs. Discontinued).

Q: What is the difference between PLL1708DBQR and PLL1705DBQR?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The difference lies in the base product number designation (PLL1708 vs. PLL1705). All critical parameters—package type, frequency rating, voltage supply, operating temperature, input/output types, and compliance certifications—are identical.

Q: Are there any package compatibility concerns?

A: No. All three parts use the 20-SSOP (0.154", 3.90mm Width) package with Surface Mount mounting type. PCB footprints and assembly processes remain unchanged.

Q: Do the substitute parts meet the same compliance requirements?

A: Yes. All parts are ROHS3 compliant with MSL rating of 1 (Unlimited). REACH status is Unaffected for all parts, and ECCN classification is EAR99 across all variants.

Q: Which substitute should be selected for new designs?

A: The PLL1708DBQR is recommended as the primary substitute due to Active product status and higher inventory availability (16007 units). The PLL1705DBQR is an alternative parametric equivalent with equivalent specifications.