CDC421106RGER Clock Generator IC Equivalent & Substitute Parts

Part Overview

The CDC421106RGER is a Clock Generator IC manufactured by Texas Instruments, operating at 106.25MHz with a 24-VFQFN Exposed Pad package. This component is classified as Obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design support and procurement.

The CDC421106RGER provides clock generation functionality with PLL capability, accepting LVCMOS and Crystal inputs while delivering LVPECL outputs. The part operates within a 3V to 3.6V supply range and maintains performance across -40°C to 85°C operating temperatures.

Substiute Parts

CDC421106RGER

Texas InstrumentsIn Stock: 822CDC421106RGER Datasheet

Current PartRFQ

CDC421A106RGER

Texas InstrumentsIn Stock: 1974CDC421A106RGER Datasheet

MFR RecommendedRFQ

CDC421A100RGER

Texas InstrumentsIn Stock: 1387CDC421A100RGER Datasheet

Parametric EquivalentRFQ

CDC421A100RGET

Texas InstrumentsIn Stock: 779CDC421A100RGET Datasheet

Parametric EquivalentRFQ

CDC421A106RGET

Texas InstrumentsIn Stock: 912CDC421A106RGET Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDC421106RGER is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Package / Case: 24-VFQFN Exposed Pad (identical physical and electrical interface)
• Voltage - Supply: 3V ~ 3.6V (identical operating voltage range)
• Operating Temperature: -40°C ~ 85°C (identical thermal operating range)
• Input Type: LVCMOS, Crystal (identical input signal compatibility)
• Output Type: LVPECL (identical output signal standard)
• PLL: Yes (identical functional capability)
• Number of Circuits: 1 (identical circuit count)
• Mounting Type: Surface Mount (identical assembly method)
• RoHS Status: ROHS3 Compliant (identical environmental compliance)
• Moisture Sensitivity Level: 2 (1 Year) (identical handling requirements)

Secondary Variation Parameter:

• Frequency - Max: 106.25MHz or 100MHz (frequency variants within the CDC421A series)

Substitutes are grouped into two categories: MFR Recommended (identical frequency specification) and Parametric Equivalents (alternative frequency specifications within the same product family).

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: CDC421A106RGER

The CDC421A106RGER is the MFR Recommended substitute for CDC421106RGER. This part maintains identical electrical and mechanical specifications while offering Active product status. The transition from Obsolete to Active status ensures long-term availability and manufacturing support. Both parts operate at 106.25MHz with matching supply voltage, temperature range, and package configuration. The CDC421A106RGER is available in Tape & Reel packaging, suitable for automated assembly processes.

Secondary Recommendations: CDC421A106RGET and CDC421A100RGER / CDC421A100RGET

The CDC421A106RGET provides identical frequency specification (106.25MHz) with Active product status. This part differs only in packaging format (Tape & Reel) and represents a direct functional equivalent.

The CDC421A100RGER and CDC421A100RGET are parametric equivalents operating at 100MHz maximum frequency. These parts maintain all other electrical and mechanical parameters identical to the main part. Selection of 100MHz variants is appropriate only when circuit design specifications permit operation at this lower frequency. Both 100MHz variants are Active products available in Tape & Reel packaging.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and identical Moisture Sensitivity Level (MSL 2, 1 Year), ensuring compatibility with current manufacturing and handling requirements.

Frequently Asked Questions (FAQ)

Q: Can CDC421A106RGER directly replace CDC421106RGER in existing designs?

A: Yes. The CDC421A106RGER maintains identical electrical specifications, package configuration, and operating parameters. The primary difference is product status transition from Obsolete to Active. No circuit modifications are required for substitution.

Q: What is the difference between CDC421A106RGER and CDC421A106RGET?

A: Both parts are electrically identical, operating at 106.25MHz with matching supply voltage and temperature range. The difference is packaging format: CDC421A106RGER is supplied in Tape & Reel (TR), as is CDC421A106RGET. Both are suitable for automated assembly.

Q: Can I use CDC421A100RGER instead of CDC421106RGER?

A: The CDC421A100RGER is a parametric equivalent with all specifications identical except maximum frequency, which is 100MHz instead of 106.25MHz. Substitution is valid only if your circuit design operates at or below 100MHz. Verify frequency requirements before selection.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the environmental standards of the original CDC421106RGER.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: All parts, including the main part and all substitutes, carry MSL 2 (1 Year) rating. This requires storage in controlled humidity conditions and limits shelf life to one year from manufacturing date.

Q: Which substitute should I select for new designs?

A: For new designs requiring 106.25MHz operation, select CDC421A106RGER. This part offers Active product status, ensuring long-term availability and manufacturing support. If your design permits 100MHz operation, CDC421A100RGER is also available as an Active product alternative.