CDCE949PWG4 Equivalent & Substitute Parts

Part Overview

The CDCE949PWG4 is a PLL Clock Generator IC manufactured by Texas Instruments, designed for applications requiring programmable clock generation up to 230MHz. This device features a single PLL circuit with bypass capability, accepting LVCMOS or Crystal inputs and delivering LVCMOS outputs with a 1:9 input-to-output ratio.

The CDCE949PWG4 is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and replacement applications.

Substiute Parts

CDCE949PWG4

Texas InstrumentsIn Stock: 1169CDCE949PWG4 Datasheet

Current PartRFQ

CDCE949PW

Texas InstrumentsIn Stock: 3610CDCE949PW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDCE949PWG4 is determined by strict equivalence across the following critical parameters:

• Functional Type: PLL Clock Generator with bypass capability
• Maximum Frequency: 230MHz
• Input/Output Configuration: LVCMOS and Crystal input support; LVCMOS output
• Frequency Ratio: 1:9 input-to-output ratio
• Supply Voltage Range: 1.7V ~ 1.9V
• Package: 24-TSSOP form factor
• Thermal Range: -40°C ~ 85°C
• Compliance: ROHS3 Compliant, MSL Level 1

The CDCE949PW variant meets all these criteria and is classified as a manufacturer-recommended substitute. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The CDCE949PW is the manufacturer-recommended substitute for the CDCE949PWG4. Both parts are electrically and mechanically identical across all functional parameters. The CDCE949PW maintains active product status with verified availability, whereas the CDCE949PWG4 is discontinued.

Selection of the CDCE949PW is appropriate for new designs and replacement applications. Both parts carry ROHS3 compliance and identical moisture sensitivity ratings, ensuring regulatory and environmental compatibility. The primary operational difference is packaging format: the CDCE949PWG4 is supplied in tape and reel configuration, while the CDCE949PW is supplied in tube packaging.

Frequently Asked Questions (FAQ)

Q: Are the CDCE949PWG4 and CDCE949PW pin-compatible?

A: Yes. Both parts use the identical 24-TSSOP package with matching pinout and electrical characteristics.

Q: Can the CDCE949PW be used as a direct replacement in existing designs?

A: Yes. The CDCE949PW is electrically and mechanically equivalent to the CDCE949PWG4 across all specified parameters.

Q: What is the difference between the CDCE949PWG4 and CDCE949PW?

A: The primary differences are product status and packaging format. The CDCE949PWG4 is discontinued and supplied in tape and reel; the CDCE949PW is active and supplied in tube packaging. Electrical and mechanical specifications are identical.

Q: Does the packaging format affect circuit performance?

A: No. Packaging format (tape and reel versus tube) does not affect electrical performance or functional characteristics. Selection depends on procurement and assembly requirements.

Q: Are both parts RoHS compliant?

A: Yes. Both the CDCE949PWG4 and CDCE949PW are ROHS3 compliant with MSL Level 1 rating.

Q: What supply voltage is required for operation?

A: Both parts operate within the 1.7V to 1.9V supply voltage range.

Q: What is the maximum operating frequency?

A: Both parts support clock generation up to 230MHz with a 1:9 input-to-output frequency ratio.